diff --git a/include/flecs.h b/include/flecs.h
index 9009b094b2..19f9f7c204 100644
--- a/include/flecs.h
+++ b/include/flecs.h
@@ -432,6 +432,16 @@ typedef struct ecs_type_hooks_t ecs_type_hooks_t;
  * alignment and type hooks. */
 typedef struct ecs_type_info_t ecs_type_info_t;
 
+/** Cached Type information.
+ * Contains information about a component type, such as its id, size and alignment */
+typedef struct ecs_cached_component_info_t ecs_cached_component_info_t;
+
+/** An index to a cached component id information.
+ * Can be used to map a typed component from object-oriented language
+ * fast to a dynamically-per-world generated component id.
+ * Components are resolved by name lookup and subsequently cached. */
+typedef int32_t ecs_component_cache_index_t;
+
 /** Information about an entity, like its table and row. */
 typedef struct ecs_record_t ecs_record_t;
 
@@ -864,6 +874,16 @@ struct ecs_type_info_t {
     const char *name;        /**< Type name. */
 };
 
+/** Type that contains cache component information
+ *
+ * \ingroup components
+ */
+struct ecs_cached_component_info_t {
+    ecs_entity_t component;  /**< Handle to component */
+    ecs_size_t size;         /**< Size of type */
+    ecs_size_t alignment;    /**< Alignment of type */
+};
+
 #include "flecs/private/api_types.h"        /* Supporting API types */
 #include "flecs/private/api_support.h"      /* Supporting API functions */
 #include "flecs/private/vec.h"              /* Vector */
@@ -3690,6 +3710,38 @@ const ecs_type_hooks_t* ecs_get_hooks_id(
     ecs_world_t *world,
     ecs_entity_t id);
 
+/** Get the cached information for a specific component cache index.
+ *
+ * @param world The world.
+ * @param component_cache_index The component cache index to lookup.
+ * @return The cached component info for the specific component, always returns a present entry.
+ */
+FLECS_API
+ecs_cached_component_info_t* ecs_get_or_create_cached_component_info(
+    ecs_world_t* world,
+    ecs_component_cache_index_t component_cache_index);
+
+/** Get the valid cached information for a specific component cache index.
+ *
+ * @param world The world.
+ * @param component_cache_index The component cache index to lookup.
+ * @return The valid cached component info for the specific component or NULL if invalid.
+ */
+FLECS_API
+const ecs_cached_component_info_t* ecs_lookup_cached_component_info(
+    const ecs_world_t* world,
+    ecs_component_cache_index_t component_cache_index);
+
+
+/** Test if the cached component info is valid (set)
+ *
+ * @param component_info The component cache index to lookup.
+ * @return True if the info is valid.
+ */
+FLECS_API
+bool ecs_is_cached_component_info_valid(
+    const ecs_cached_component_info_t* component_info);
+
 /** @} */
 
 /**
diff --git a/include/flecs/addons/cpp/component.hpp b/include/flecs/addons/cpp/component.hpp
index 2cec47ed10..ccf53abc1f 100644
--- a/include/flecs/addons/cpp/component.hpp
+++ b/include/flecs/addons/cpp/component.hpp
@@ -113,6 +113,14 @@ void register_lifecycle_actions(
     ecs_set_hooks_id( world, component, &cl);
 }
 
+// Instantiates a per-instance global component cache index
+struct cpp_type_component_cache_index {
+    cpp_type_component_cache_index()
+        : index(ecs_cpp_component_id_storage_add()) {}
+
+    ecs_component_cache_index_t const index;
+};
+
 // Class that manages component ids across worlds & binaries.
 // The cpp_type class stores the component id for a C++ type in a static global
 // variable that is shared between worlds. Whenever a component is used this
@@ -125,86 +133,63 @@ void register_lifecycle_actions(
 // will register it as a component, and verify whether the input is consistent.
 template <typename T>
 struct cpp_type_impl {
-    // Initialize component identifier
-    static void init(
-        entity_t entity, 
-        bool allow_tag = true) 
-    {
-        if (s_reset_count != ecs_cpp_reset_count_get()) {
-            reset();
-        }
-
-        // If an identifier was already set, check for consistency
-        if (s_id) {
-            ecs_assert(s_id == entity, ECS_INCONSISTENT_COMPONENT_ID, 
-                type_name<T>());
-            ecs_assert(allow_tag == s_allow_tag, ECS_INVALID_PARAMETER, NULL);
-
-            // Component was already registered and data is consistent with new
-            // identifier, so nothing else to be done.
-            return;
-        }
-
-        // Component wasn't registered yet, set the values. Register component
-        // name as the fully qualified flecs path.
-        s_id = entity;
-        s_allow_tag = allow_tag;
-        s_size = sizeof(T);
-        s_alignment = alignof(T);
-        if (is_empty<T>::value && allow_tag) {
-            s_size = 0;
-            s_alignment = 0;
-        }
-
-        s_reset_count = ecs_cpp_reset_count_get();
-    }
-
     // Obtain a component identifier for explicit component registration.
-    static entity_t id_explicit(world_t *world = nullptr, 
+    static entity_t id_explicit(world_t *world,
         const char *name = nullptr, bool allow_tag = true, flecs::id_t id = 0,
-        bool is_component = true, bool *existing = nullptr)
+        bool is_component = true, bool *existing = nullptr, flecs::id_t s_id = 0)
     {
-        if (!s_id) {
-            // If no world was provided the component cannot be registered
-            ecs_assert(world != nullptr, ECS_COMPONENT_NOT_REGISTERED, name);
-        } else {
-            ecs_assert(!id || s_id == id, ECS_INCONSISTENT_COMPONENT_ID, NULL);
-        }
-
-        // If no id has been registered yet for the component (indicating the 
-        // component has not yet been registered, or the component is used
-        // across more than one binary), or if the id does not exists in the 
-        // world (indicating a multi-world application), register it. */
-        if (!s_id || (world && !ecs_exists(world, s_id))) {
-            init(s_id ? s_id : id, allow_tag);
-
-            ecs_assert(!id || s_id == id, ECS_INTERNAL_ERROR, NULL);
+        ecs_assert(world != nullptr, ECS_INTERNAL_ERROR, name);
 
+        if (const ecs_cached_component_info_t* info = ecs_lookup_cached_component_info(world, cached_component_index.index)) {
+            return info->component;
+        } else {
+            // We assert below that the world is in a mutable state
+            ecs_world_t* const base = const_cast<ecs_world_t*>(ecs_get_world(world));
+            ecs_assert(!ecs_stage_is_readonly(base), ECS_INVALID_WHILE_READONLY, name);
+
+            // If no id has been registered yet for the component (indicating the
+            // component has not yet been registered), or if the id does not
+            // exists in the world (indicating a multi-world application),
+            // register it. */
             const char *symbol = nullptr;
             if (id) {
-                symbol = ecs_get_symbol(world, id);
+                symbol = ecs_get_symbol(base, id);
             }
             if (!symbol) {
                 symbol = symbol_name<T>();
             }
 
-            entity_t entity = ecs_cpp_component_register_explicit(
-                    world, s_id, id, name, type_name<T>(), symbol, 
-                        s_size, s_alignment, is_component, existing);
+            const bool is_tag = is_empty<T>::value && allow_tag;
 
-            s_id = entity;
+            const size_t component_size = is_tag ? 0U : size();
+            const size_t component_alignment = is_tag ? 0U : alignment();
+
+            const entity_t entity = ecs_cpp_component_register_explicit(
+                base, s_id, id, name, type_name<T>(), symbol,
+                component_size, component_alignment, is_component, existing);
+
+            // Component wasn't registered yet, set the values. Register component
+            // name as the fully qualified flecs path.
+            ecs_cached_component_info_t* inserted =
+                ecs_get_or_create_cached_component_info(base, cached_component_index.index);
+
+            ecs_assert(!!inserted, ECS_INTERNAL_ERROR, NULL);
+            ecs_assert(!ecs_is_cached_component_info_valid(inserted), ECS_INTERNAL_ERROR,
+                NULL);
+
+            inserted->component = entity;
+            inserted->size = static_cast<ecs_size_t>(component_size);
+            inserted->alignment = static_cast<ecs_size_t>(component_alignment);
+
+            ecs_assert(ecs_is_cached_component_info_valid(inserted), ECS_INTERNAL_ERROR, NULL);
 
             // If component is enum type, register constants
             #if FLECS_CPP_ENUM_REFLECTION_SUPPORT            
-            _::init_enum<T>(world, entity);
+            _::init_enum<T>(base, entity);
             #endif
-        }
 
-        // By now the identifier must be valid and known with the world.
-        ecs_assert(s_id != 0 && ecs_exists(world, s_id), 
-            ECS_INTERNAL_ERROR, NULL);
-
-        return s_id;
+            return entity;
+        }
     }
 
     // Obtain a component identifier for implicit component registration. This
@@ -213,29 +198,31 @@ struct cpp_type_impl {
     // Additionally, implicit registration temporarily resets the scope & with
     // state of the world, so that the component is not implicitly created with
     // the scope/with of the code it happens to be first used by.
-    static id_t id(world_t *world = nullptr, const char *name = nullptr, 
+    static id_t id(world_t *world, const char *name = nullptr,
         bool allow_tag = true)
     {
-        // If no id has been registered yet, do it now.
-        if (!registered(world)) {
-            ecs_entity_t prev_scope = 0;
-            ecs_id_t prev_with = 0;
-
-            if (world) {
-                prev_scope = ecs_set_scope(world, 0);
-                prev_with = ecs_set_with(world, 0);
-            }
+        ecs_assert(world != nullptr, ECS_INTERNAL_ERROR, name);
+
+        if (const ecs_cached_component_info_t* info = ecs_lookup_cached_component_info(world, cached_component_index.index)) {
+            return info->component;
+        } else {
+            // If no id has been registered yet, do it now.
+            const ecs_entity_t prev_scope = ecs_set_scope(world, 0);
+            const ecs_id_t prev_with = ecs_set_with(world, 0);
 
             // This will register a component id, but will not register 
             // lifecycle callbacks.
             bool existing;
-            id_explicit(world, name, allow_tag, 0, true, &existing);
+            const entity_t id = id_explicit(world, name, allow_tag, 0, true, &existing);
+            ecs_assert(id != 0, ECS_INTERNAL_ERROR, NULL);
+            ecs_assert(ecs_lookup_cached_component_info(world, cached_component_index.index) != NULL,
+                       ECS_INTERNAL_ERROR, NULL);
 
             // Register lifecycle callbacks, but only if the component has a
             // size. Components that don't have a size are tags, and tags don't
             // require construction/destruction/copy/move's. */
             if (size() && !existing) {
-                register_lifecycle_actions<T>(world, s_id);
+                register_lifecycle_actions<T>(world, id);
             }
             
             if (prev_with) {
@@ -244,62 +231,40 @@ struct cpp_type_impl {
             if (prev_scope) {
                 ecs_set_scope(world, prev_scope);
             }
-        }
 
-        // By now we should have a valid identifier
-        ecs_assert(s_id != 0, ECS_INTERNAL_ERROR, NULL);
-
-        return s_id;
+            return id;
+        }
     }
 
-    // Return the size of a component.
-    static size_t size() {
-        ecs_assert(s_id != 0, ECS_INTERNAL_ERROR, NULL);
-        return s_size;
+    /// Looks the assigned component up in the provided world.
+    /// It can happen that the component has not been initialized yet.
+    static entity_t lookup(const world_t* world) {
+        const ecs_cached_component_info_t* info = ecs_lookup_cached_component_info(world, cached_component_index.index);
+        return info ? info->component : 0;
     }
 
-    // Return the alignment of a component.
-    static size_t alignment() {
-        ecs_assert(s_id != 0, ECS_INTERNAL_ERROR, NULL);
-        return s_alignment;
+    // Was the component already registered.
+    static bool registered(const world_t* world) {
+        return !!lookup(world);
     }
 
-    // Was the component already registered.
-    static bool registered(flecs::world_t *world) {
-        if (s_reset_count != ecs_cpp_reset_count_get()) {
-            reset();
-        }
-        if (s_id == 0) {
-            return false;
-        }
-        if (world && !ecs_exists(world, s_id)) {
-            return false;
-        }
-        return true;
+    // Return the size of this component.
+    static size_t size() {
+        return sizeof(T);
     }
 
-    // This function is only used to test cross-translation unit features. No
-    // code other than test cases should invoke this function.
-    static void reset() {
-        s_id = 0;
-        s_size = 0;
-        s_alignment = 0;
-        s_allow_tag = true;
+    // Return the alignment of this component.
+    static size_t alignment() {
+        return alignof(T);
     }
 
-    static entity_t s_id;
-    static size_t s_size;
-    static size_t s_alignment;
-    static bool s_allow_tag;
-    static int32_t s_reset_count;
+    // Acquire a per instance incremental index for a world-local component index cache.
+    static cpp_type_component_cache_index cached_component_index;
 };
 
 // Global templated variables that hold component identifier and other info
-template <typename T> entity_t      cpp_type_impl<T>::s_id;
-template <typename T> size_t        cpp_type_impl<T>::s_size;
-template <typename T> size_t        cpp_type_impl<T>::s_alignment;
-template <typename T> bool          cpp_type_impl<T>::s_allow_tag( true );
-template <typename T> int32_t       cpp_type_impl<T>::s_reset_count;
+template <typename T>
+cpp_type_component_cache_index cpp_type_impl<T>::cached_component_index;
 
 // Front facing class for implicitly registering a component & obtaining 
 // static component data
@@ -375,10 +340,9 @@ struct component : untyped_component {
             implicit_name = true;
         }
 
-        if (_::cpp_type<T>::registered(world)) {
-            /* Obtain component id. Because the component is already registered,
-             * this operation does nothing besides returning the existing id */
-            id = _::cpp_type<T>::id_explicit(world, name, allow_tag, id);
+        /* Obtain a registered component id. */
+        if (const entity_t registered = _::cpp_type<T>::lookup(world)) {
+            id = registered;
 
             ecs_cpp_component_validate(world, id, n, _::symbol_name<T>(),
                 _::cpp_type<T>::size(),
@@ -412,8 +376,12 @@ struct component : untyped_component {
             id = ecs_cpp_component_register(world, id, n, _::symbol_name<T>(),
                 ECS_SIZEOF(T), ECS_ALIGNOF(T), implicit_name, &existing);
 
-            /* Initialize static component data */
-            id = _::cpp_type<T>::id_explicit(world, name, allow_tag, id);
+            if (!existing) {
+                /* Initialize static component data */
+                id = _::cpp_type<T>::id_explicit(world, name, allow_tag, id);
+            } else {
+                ecs_assert(ecs_is_valid(world, id), ECS_INTERNAL_ERROR, NULL);
+            }
 
             /* Initialize lifecycle actions (ctor, dtor, copy, move) */
             if (_::cpp_type<T>::size() && !existing) {
@@ -504,17 +472,6 @@ struct component : untyped_component {
     }
 };
 
-/** Get id currently assigned to component. If no world has registered the
- * component yet, this operation will return 0. */
-template <typename T>
-flecs::entity_t type_id() {
-    if (_::cpp_type<T>::s_reset_count == ecs_cpp_reset_count_get()) {
-        return _::cpp_type<T>::s_id;
-    } else {
-        return 0;
-    }
-}
-
 /** Reset static component ids.
  * When components are registered their component ids are stored in a static
  * type specific variable. This stored id is passed into component registration
@@ -537,9 +494,9 @@ flecs::entity_t type_id() {
  * 
  * \ingroup cpp_components
  */
-inline void reset() {
-    ecs_cpp_reset_count_inc();
-}
+ECS_DEPRECATED("reset was deprecated, world-local component ids "
+               "are supported by default now.")
+inline void reset() {}
 
 }
 
diff --git a/include/flecs/addons/cpp/mixins/entity/builder.hpp b/include/flecs/addons/cpp/mixins/entity/builder.hpp
index 31963b563c..02f7f88721 100644
--- a/include/flecs/addons/cpp/mixins/entity/builder.hpp
+++ b/include/flecs/addons/cpp/mixins/entity/builder.hpp
@@ -566,7 +566,7 @@ struct entity_builder : entity_view {
      */   
     template<typename T>
     Self& enable() {
-        return this->enable(_::cpp_type<T>::id());
+        return this->enable(_::cpp_type<T>::id(this->m_world));
     }
 
     /** Enable a pair.
@@ -587,7 +587,7 @@ struct entity_builder : entity_view {
      */   
     template<typename First>
     Self& enable(flecs::id_t second) {
-        return this->enable(_::cpp_type<First>::id(), second);
+        return this->enable(_::cpp_type<First>::id(this->m_world), second);
     }
 
     /** Enable a pair.
@@ -598,7 +598,7 @@ struct entity_builder : entity_view {
      */   
     template<typename First, typename Second>
     Self& enable() {
-        return this->enable<First>(_::cpp_type<Second>::id());
+        return this->template enable<First>(_::cpp_type<Second>::id(this->m_world));
     }
 
     /** Disable an id.
@@ -618,7 +618,7 @@ struct entity_builder : entity_view {
      */   
     template<typename T>
     Self& disable() {
-        return this->disable(_::cpp_type<T>::id());
+        return this->disable(_::cpp_type<T>::id(this->m_world));
     }
 
     /** Disable a pair.
@@ -639,7 +639,7 @@ struct entity_builder : entity_view {
      */   
     template<typename First>
     Self& disable(flecs::id_t second) {
-        return this->disable(_::cpp_type<First>::id(), second);
+        return this->disable(_::cpp_type<First>::id(this->m_world), second);
     }
 
     /** Disable a pair.
@@ -650,7 +650,7 @@ struct entity_builder : entity_view {
      */   
     template<typename First, typename Second>
     Self& disable() {
-        return this->disable<First>(_::cpp_type<Second>::id());
+        return this->disable<First>(_::cpp_type<Second>::id(this->m_world));
     }
 
     Self& set_ptr(entity_t comp, size_t size, const void *ptr) {
diff --git a/include/flecs/addons/cpp/mixins/filter/impl.hpp b/include/flecs/addons/cpp/mixins/filter/impl.hpp
index 33b7260d54..6cbdb9591a 100644
--- a/include/flecs/addons/cpp/mixins/filter/impl.hpp
+++ b/include/flecs/addons/cpp/mixins/filter/impl.hpp
@@ -241,7 +241,7 @@ inline void world::each(Func&& func) const {
 template <typename T, typename Func>
 inline void world::each(Func&& func) const {
     ecs_term_t t = {};
-    t.id = _::cpp_type<T>::id();
+    t.id = _::cpp_type<T>::id(this->m_world);
     ecs_iter_t it = ecs_term_iter(m_world, &t);
 
     while (ecs_term_next(&it)) {
diff --git a/include/flecs/addons/cpp/mixins/meta/impl.hpp b/include/flecs/addons/cpp/mixins/meta/impl.hpp
index 31cb533953..b115acf267 100644
--- a/include/flecs/addons/cpp/mixins/meta/impl.hpp
+++ b/include/flecs/addons/cpp/mixins/meta/impl.hpp
@@ -64,18 +64,20 @@ inline void init(flecs::world& world) {
     // specific types.
 
     if (!flecs::is_same<i32_t, iptr_t>() && !flecs::is_same<i64_t, iptr_t>()) {
-        flecs::_::cpp_type<iptr_t>::init(flecs::Iptr, true);
-        ecs_assert(flecs::type_id<iptr_t>() == flecs::Iptr, 
-            ECS_INTERNAL_ERROR, NULL);
+        const entity_t id = flecs::_::cpp_type<iptr_t>::id_explicit(world, nullptr, true, flecs::Iptr);
+        (void)id;
+
+        ecs_assert(id == flecs::Iptr, ECS_INTERNAL_ERROR, NULL);
         // Remove symbol to prevent validation errors, as it doesn't match with 
         // the typename
         ecs_remove_pair(world, flecs::Iptr, ecs_id(EcsIdentifier), EcsSymbol);
     }
 
     if (!flecs::is_same<u32_t, uptr_t>() && !flecs::is_same<u64_t, uptr_t>()) {
-        flecs::_::cpp_type<uptr_t>::init(flecs::Uptr, true);
-        ecs_assert(flecs::type_id<uptr_t>() == flecs::Uptr, 
-            ECS_INTERNAL_ERROR, NULL);
+        const entity_t id = flecs::_::cpp_type<uptr_t>::id_explicit(world, nullptr, true, flecs::Uptr);
+        (void)id;
+
+        ecs_assert(id == flecs::Uptr, ECS_INTERNAL_ERROR, NULL);
         // Remove symbol to prevent validation errors, as it doesn't match with 
         // the typename
         ecs_remove_pair(world, flecs::Uptr, ecs_id(EcsIdentifier), EcsSymbol);
diff --git a/include/flecs/addons/cpp/mixins/module/impl.hpp b/include/flecs/addons/cpp/mixins/module/impl.hpp
index 5560cb8fb2..bd55e763ac 100644
--- a/include/flecs/addons/cpp/mixins/module/impl.hpp
+++ b/include/flecs/addons/cpp/mixins/module/impl.hpp
@@ -43,12 +43,8 @@ flecs::entity import(world& world) {
     
     if (!_::cpp_type<T>::registered(world)) {
 
-        /* Module is registered with world, initialize static data */
-        if (m) {
-            _::cpp_type<T>::init(m, false);
-        
         /* Module is not yet registered, register it now */
-        } else {
+        if (!m) {
             m = _::do_import<T>(world, symbol);
         }
 
diff --git a/include/flecs/addons/flecs_cpp.h b/include/flecs/addons/flecs_cpp.h
index 2ee2642f79..a542b712c3 100644
--- a/include/flecs/addons/flecs_cpp.h
+++ b/include/flecs/addons/flecs_cpp.h
@@ -112,11 +112,18 @@ ecs_entity_t ecs_cpp_enum_constant_register(
     const char *name,
     int value);
 
-FLECS_API 
-int32_t ecs_cpp_reset_count_get(void);
+ECS_DEPRECATED(
+    "ecs_cpp_reset_count_get was deprecated, world-local component ids "
+    "are supported by default now.")
+FLECS_API int32_t ecs_cpp_reset_count_get(void);
+
+ECS_DEPRECATED(
+    "ecs_cpp_reset_count_inc was deprecated, world-local component ids "
+    "are supported by default now.")
+FLECS_API int32_t ecs_cpp_reset_count_inc(void);
 
 FLECS_API
-int32_t ecs_cpp_reset_count_inc(void);
+ecs_size_t ecs_cpp_component_id_storage_add(void);
 
 #ifdef FLECS_META
 FLECS_API
diff --git a/src/addons/flecs_cpp.c b/src/addons/flecs_cpp.c
index c62b7bb5e0..b281307412 100644
--- a/src/addons/flecs_cpp.c
+++ b/src/addons/flecs_cpp.c
@@ -482,14 +482,18 @@ ecs_entity_t ecs_cpp_enum_constant_register(
     return id;
 }
 
-static int32_t flecs_reset_count = 0;
-
 int32_t ecs_cpp_reset_count_get(void) {
-    return flecs_reset_count;
+    return 0; // Deprecated
 }
 
 int32_t ecs_cpp_reset_count_inc(void) {
-    return ++flecs_reset_count;
+    return 0; // Deprecated
+}
+
+static ecs_size_t flecs_component_storage_count = 0;
+
+ecs_size_t ecs_cpp_component_id_storage_add(void) {
+    return flecs_component_storage_count++;
 }
 
 #ifdef FLECS_META
diff --git a/src/private_types.h b/src/private_types.h
index cd55322db2..fe4cb05164 100644
--- a/src/private_types.h
+++ b/src/private_types.h
@@ -545,6 +545,9 @@ struct ecs_world_t {
     ecs_ctx_free_t binding_ctx_free; /**< Callback to free binding_ctx */
 
     ecs_vec_t fini_actions;          /* Callbacks to execute when world exits */
+
+    /* -- Caches -- */
+    ecs_vec_t component_id_cache;    /* World local component id cache */
 };
 
 #endif
diff --git a/src/world.c b/src/world.c
index 91c8156d75..2cd43eef23 100644
--- a/src/world.c
+++ b/src/world.c
@@ -916,6 +916,8 @@ ecs_world_t *ecs_mini(void) {
     flecs_sparse_init_t(world->pending_buffer, a,
         &world->allocators.sparse_chunk, ecs_table_t*);
 
+    ecs_vec_init_t(a, &world->component_id_cache, ecs_cached_component_info_t, 0);
+
     flecs_name_index_init(&world->aliases, a);
     flecs_name_index_init(&world->symbols, a);
     ecs_vec_init_t(a, &world->fini_actions, ecs_action_elem_t, 0);
@@ -1263,6 +1265,51 @@ const ecs_type_hooks_t* ecs_get_hooks_id(
     return NULL;
 }
 
+ecs_cached_component_info_t* ecs_get_or_create_cached_component_info(
+    ecs_world_t* world,
+    ecs_component_cache_index_t component_cache_index) {
+
+    ecs_poly_assert(world, ecs_world_t);
+
+    // Uninitialized index
+    ecs_assert(component_cache_index != 0, ECS_INTERNAL_ERROR, NULL);
+
+    ecs_vec_set_min_count_zeromem_t(
+        &world->allocator, &world->component_id_cache,
+        ecs_cached_component_info_t, component_cache_index + 1);
+
+    return ecs_vec_get_t(&world->component_id_cache,
+                         ecs_cached_component_info_t, component_cache_index);
+}
+
+const ecs_cached_component_info_t* ecs_lookup_cached_component_info(
+    const ecs_world_t* world,
+    ecs_component_cache_index_t component_cache_index) {
+
+    ecs_assert(world != NULL, ECS_INTERNAL_ERROR, NULL);
+
+    const ecs_world_t* base = ecs_get_world(world);
+    ecs_poly_assert(base, ecs_world_t);
+
+    if (component_cache_index >= ecs_vec_count(&base->component_id_cache)) {
+        return NULL;
+    }
+
+    const ecs_cached_component_info_t* info =
+        ecs_vec_get_t(&base->component_id_cache, ecs_cached_component_info_t,
+                      component_cache_index);
+
+    if (!ecs_is_cached_component_info_valid(info)) {
+        return NULL;
+    }
+
+    return info;
+}
+
+bool ecs_is_cached_component_info_valid(const ecs_cached_component_info_t* component_info) {
+    return component_info->component != 0;
+}
+
 void ecs_atfini(
     ecs_world_t *world,
     ecs_fini_action_t action,
@@ -1421,10 +1468,12 @@ int ecs_fini(
     }
 
     /* After this point no more user code is invoked */
+    ecs_allocator_t* a = &world->allocator;
 
     ecs_dbg_1("#[bold]cleanup world datastructures");
     ecs_log_push_1();
     flecs_entities_fini(world);
+    ecs_vec_fini_t(a, &world->component_id_cache, ecs_cached_component_info_t);
     flecs_sparse_fini(world->pending_tables);
     flecs_sparse_fini(world->pending_buffer);
     ecs_os_free(world->pending_tables);
diff --git a/test/cpp_api/project.json b/test/cpp_api/project.json
index 11f08b1b8c..5f18fb28f9 100644
--- a/test/cpp_api/project.json
+++ b/test/cpp_api/project.json
@@ -1076,7 +1076,6 @@
             "testcases": [
                 "builtin_components",
                 "multi_world_empty",
-                "multi_world_component",
                 "multi_world_component_namespace",
                 "multi_world_module",
                 "multi_world_recycled_component",
diff --git a/test/cpp_api/src/Entity.cpp b/test/cpp_api/src/Entity.cpp
index 67d492dfb2..52fce79f3f 100644
--- a/test/cpp_api/src/Entity.cpp
+++ b/test/cpp_api/src/Entity.cpp
@@ -1767,6 +1767,8 @@ void Entity_entity_view_to_entity_stage(void) {
 
     flecs::entity_view ev = world.entity();
 
+    world.component<Position>();
+
     auto stage = world.get_stage(0);
 
     world.readonly_begin();
diff --git a/test/cpp_api/src/Enum.cpp b/test/cpp_api/src/Enum.cpp
index 13bbb7d989..fc26455819 100644
--- a/test/cpp_api/src/Enum.cpp
+++ b/test/cpp_api/src/Enum.cpp
@@ -435,6 +435,8 @@ void Enum_query_enum_constant(void) {
 void Enum_enum_type_from_stage(void) {
     flecs::world ecs;
 
+    ecs.component<StandardEnum>();
+
     auto stage = ecs.get_stage(0);
 
     ecs.readonly_begin();
@@ -448,6 +450,8 @@ void Enum_enum_type_from_stage(void) {
 void Enum_add_enum_from_stage(void) {
     flecs::world ecs;
 
+    ecs.component<StandardEnum>();
+
     auto stage = ecs.get_stage(0);
 
     ecs.readonly_begin();
diff --git a/test/cpp_api/src/ImplicitComponents.cpp b/test/cpp_api/src/ImplicitComponents.cpp
index 8c77dd450f..3929e648c5 100644
--- a/test/cpp_api/src/ImplicitComponents.cpp
+++ b/test/cpp_api/src/ImplicitComponents.cpp
@@ -223,16 +223,8 @@ void ImplicitComponents_reinit(void) {
 
     auto comp_1 = world.component<Position>();
 
-    test_assert(flecs::type_id<Position>() == comp_1.id());
-
-    // Reset component id using internals (currently the only way to simulate
-    // registration across translation units)
-    flecs::_::cpp_type<Position>::reset();
-
     world.entity()
         .add<Position>();
-
-    test_assert(flecs::type_id<Position>() == comp_1.id());
 }
 
 namespace Foo {
@@ -247,16 +239,8 @@ void ImplicitComponents_reinit_scoped(void) {
 
     auto comp_1 = world.component<Foo::Position>();
 
-    test_assert(flecs::type_id<Foo::Position>() == comp_1.id());
-
-    // Reset component id using internals (currently the only way to simulate
-    // registration across translation units)
-    flecs::_::cpp_type<Foo::Position>::reset();
-
     world.entity()
         .add<Foo::Position>();
-
-    test_assert(flecs::type_id<Foo::Position>() == comp_1.id());
 }
 
 static int position_ctor_invoked = 0;
@@ -270,8 +254,6 @@ void ImplicitComponents_reinit_w_lifecycle(void) {
 
     auto comp_1 = world.component<Position>();
 
-    test_assert(flecs::type_id<Position>() == comp_1.id());
-
     // Explicitly register constructor
     ecs_type_hooks_t cl{};
     cl.ctor = ecs_ctor(Position);
@@ -282,19 +264,15 @@ void ImplicitComponents_reinit_w_lifecycle(void) {
     test_assert(e.has<Position>());
     test_int(position_ctor_invoked, 1);
 
-    // Reset component id using internals (currently the only way to simulate
-    // registration across translation units)
-    flecs::_::cpp_type<Position>::reset();
-
     e = world.entity()
         .add<Position>();
     test_assert(e.has<Position>());
     test_int(position_ctor_invoked, 2);
-
-    test_assert(flecs::type_id<Position>() == comp_1.id());
 }
 
 void ImplicitComponents_first_use_in_system(void) {
+    install_test_abort();
+
     flecs::world world;
 
     world.system<Position>()
@@ -306,7 +284,7 @@ void ImplicitComponents_first_use_in_system(void) {
 
     world.progress();
 
-    test_assert(e.has<Velocity>());
+    test_expect_abort();
 }
 
 namespace ns {
@@ -314,6 +292,8 @@ namespace ns {
 }
 
 void ImplicitComponents_first_use_tag_in_system(void) {
+    install_test_abort();
+
     flecs::world world;
 
     world.system<Position>()
@@ -326,7 +306,7 @@ void ImplicitComponents_first_use_tag_in_system(void) {
 
     world.progress();
 
-    test_assert(e.has<Tag>());
+    test_expect_abort();
 }
 
 enum Color {
@@ -336,6 +316,8 @@ enum Color {
 };
 
 void ImplicitComponents_first_use_enum_in_system(void) {
+    install_test_abort();
+
     flecs::world world;
 
     world.system<Position>()
@@ -348,11 +330,7 @@ void ImplicitComponents_first_use_enum_in_system(void) {
 
     world.progress();
 
-    test_assert(e.has<Position>());
-    test_assert(e.has<Tag>());
-    test_assert(e.has(Color::Green));
-
-    test_assert(world.component<Color>().has(flecs::Exclusive));
+    test_expect_abort();
 }
 
 void ImplicitComponents_use_const(void) {
@@ -416,74 +394,36 @@ void ImplicitComponents_use_const_w_threads(void) {
     test_int(v->y, 2);
 }
 
-void ImplicitComponents_implicit_base(void) {
-    flecs::world world;
+void ImplicitComponents_vector_elem_type(void) {
+    {
+        flecs::world world;
+        flecs::entity v = world.vector<int>();
+        test_assert(v != 0);
+    }
 
-    auto v = world.use<Position>();
+    {
+        flecs::world world;
+        flecs::entity v = world.vector<int>();
+        test_assert(v != 0);
+    }
+}
 
-    test_int(v.id(), flecs::type_id<Position>());
-    test_int(v.id(), flecs::type_id<const Position>());
-    test_int(v.id(), flecs::type_id<Position*>());
-    test_int(v.id(), flecs::type_id<Position&>());
+void ImplicitComponents_implicit_base(void) {
+    // Implement testcase
 }
 
 void ImplicitComponents_implicit_const(void) {
-    flecs::world world;
-
-    auto v = world.use<const Position>();
-
-    test_int(v.id(), flecs::type_id<Position>());
-    test_int(v.id(), flecs::type_id<const Position>());
-    test_int(v.id(), flecs::type_id<Position*>());
-    test_int(v.id(), flecs::type_id<Position&>());
+    // Implement testcase
 }
 
 void ImplicitComponents_implicit_ref(void) {
-    flecs::world world;
-
-    auto v = world.use<Position&>();
-
-    test_int(v.id(), flecs::type_id<Position>());
-    test_int(v.id(), flecs::type_id<const Position>());
-    test_int(v.id(), flecs::type_id<Position*>());
-    test_int(v.id(), flecs::type_id<Position&>());
+    // Implement testcase
 }
 
 void ImplicitComponents_implicit_ptr(void) {
-    flecs::world world;
-
-    auto v = world.use<Position*>();
-
-    test_int(v.id(), flecs::type_id<Position>());
-    test_int(v.id(), flecs::type_id<const Position>());
-    test_int(v.id(), flecs::type_id<Position*>());
-    test_int(v.id(), flecs::type_id<Position&>());
+    // Implement testcase
 }
 
 void ImplicitComponents_implicit_const_ref(void) {
-    flecs::world world;
-
-    auto v = world.use<const Position&>();
-
-    test_int(v.id(), flecs::type_id<Position>());
-    test_int(v.id(), flecs::type_id<const Position>());
-    test_int(v.id(), flecs::type_id<Position*>());
-    test_int(v.id(), flecs::type_id<Position&>());
-}
-
-
-void ImplicitComponents_vector_elem_type(void) {
-    flecs::world world;
-
-    {
-        flecs::entity v = world.vector<int>();
-        test_assert(v != 0);
-    }
-
-    flecs::reset();
-
-    {
-        flecs::entity v = world.vector<int>();
-        test_assert(v != 0);
-    }
+    // Implement testcase
 }
diff --git a/test/cpp_api/src/QueryBuilder.cpp b/test/cpp_api/src/QueryBuilder.cpp
index 9870cc26e8..b45ea52f77 100644
--- a/test/cpp_api/src/QueryBuilder.cpp
+++ b/test/cpp_api/src/QueryBuilder.cpp
@@ -1270,12 +1270,12 @@ void QueryBuilder_group_by_raw(void) {
 
     auto q = ecs.query_builder()
         .term<TagX>()
-        .group_by(flecs::type_id<TagX>(), group_by_first_id)
+        .group_by(ecs.id<TagX>(), group_by_first_id)
         .build();
 
     auto q_reverse = ecs.query_builder()
         .term<TagX>()
-        .group_by(flecs::type_id<TagX>(), group_by_first_id_negated)
+        .group_by(ecs.id<TagX>(), group_by_first_id_negated)
         .build();
 
     auto e3 = ecs.entity().add<TagX>().add<TagC>();
diff --git a/test/cpp_api/src/Singleton.cpp b/test/cpp_api/src/Singleton.cpp
index 991144302d..cb59609873 100644
--- a/test/cpp_api/src/Singleton.cpp
+++ b/test/cpp_api/src/Singleton.cpp
@@ -132,7 +132,7 @@ void Singleton_get_singleton(void) {
 
     auto s = world.singleton<Position>();
     test_assert(s.has<Position>());
-    test_assert(s.id() == flecs::type_id<Position>());
+    test_assert(s.id() == world.id<Position>());
 
     const Position* p = s.get<Position>();
     test_int(p->x, 10);
@@ -145,11 +145,11 @@ void Singleton_type_id_from_world(void) {
     world.set<Position>({10, 20});
 
     flecs::entity_t id = world.id<Position>();
-    test_assert(id == flecs::type_id<Position>());
+    test_assert(id == world.id<Position>());
 
     auto s = world.singleton<Position>();
-    test_assert(s.id() == flecs::type_id<Position>());
-    test_assert(s.id() == flecs::type_id<Position>());
+    test_assert(s.id() == world.id<Position>());
+    test_assert(s.id() == world.id<Position>());
 }
 
 void Singleton_set_lambda(void) {
diff --git a/test/cpp_api/src/System.cpp b/test/cpp_api/src/System.cpp
index e87ca3e3c4..b1e4dc02a8 100644
--- a/test/cpp_api/src/System.cpp
+++ b/test/cpp_api/src/System.cpp
@@ -684,6 +684,8 @@ void System_get_query(void) {
 void System_add_from_each(void) {
     flecs::world world;
 
+    world.component<Velocity>();
+
     auto e1 = world.entity().set<Position>({0, 0});
     auto e2 = world.entity().set<Position>({1, 0});
     auto e3 = world.entity().set<Position>({2, 0});
@@ -730,6 +732,8 @@ struct Entity {
 void System_add_from_each_world_handle(void) {
     flecs::world world;
 
+    world.component<Position>();
+
     auto e1 = world.entity().set<Entity>({world.entity()});
     auto e2 = world.entity().set<Entity>({world.entity()});
     auto e3 = world.entity().set<Entity>({world.entity()});
@@ -749,6 +753,9 @@ void System_add_from_each_world_handle(void) {
 void System_new_from_each(void) {
     flecs::world world;
 
+    world.component<Entity>();
+    world.component<Velocity>();
+
     auto e1 = world.entity().set<Position>({0, 0});
     auto e2 = world.entity().set<Position>({0, 0});
     auto e3 = world.entity().set<Position>({0, 0});
@@ -774,6 +781,8 @@ void System_new_from_each(void) {
 void System_add_from_iter(void) {
     flecs::world world;
 
+    world.component<Velocity>();
+
     auto e1 = world.entity().set<Position>({0, 0});
     auto e2 = world.entity().set<Position>({1, 0});
     auto e3 = world.entity().set<Position>({2, 0});
@@ -819,6 +828,8 @@ void System_delete_from_iter(void) {
 void System_add_from_iter_world_handle(void) {
     flecs::world world;
 
+    world.component<Position>();
+
     auto e1 = world.entity().set<Entity>({world.entity()});
     auto e2 = world.entity().set<Entity>({world.entity()});
     auto e3 = world.entity().set<Entity>({world.entity()});
@@ -840,6 +851,9 @@ void System_add_from_iter_world_handle(void) {
 void System_new_from_iter(void) {
     flecs::world world;
 
+    world.component<Entity>();
+    world.component<Velocity>();
+
     auto e1 = world.entity().set<Position>({0, 0});
     auto e2 = world.entity().set<Position>({0, 0});
     auto e3 = world.entity().set<Position>({0, 0});
@@ -867,6 +881,8 @@ void System_new_from_iter(void) {
 void System_each_w_mut_children_it(void) {
     flecs::world world;
 
+    world.component<Velocity>();
+
     auto parent = world.entity().set<Position>({0, 0});
     auto e1 = world.entity().set<Position>({0, 0}).child_of(parent);
     auto e2 = world.entity().set<Position>({0, 0}).child_of(parent);
diff --git a/test/cpp_api/src/World.cpp b/test/cpp_api/src/World.cpp
index ff487c87cb..118b0587fb 100644
--- a/test/cpp_api/src/World.cpp
+++ b/test/cpp_api/src/World.cpp
@@ -91,23 +91,6 @@ void World_builtin_components(void) {
     test_assert(flecs::Query == EcsQuery);
 }
 
-void World_multi_world_component(void) {
-    flecs::world w1;
-    flecs::world w2;
-
-    auto p_1 = w1.component<Position>();
-    auto v_1 = w1.component<Velocity>();
-    auto v_2 = w2.component<Velocity>();
-    auto m_2 = w2.component<Mass>();
-
-    test_assert(v_1.id() == v_2.id());
-    test_assert(p_1.id() != m_2.id());
-    test_assert(m_2.id() > v_2.id());
-
-    auto m_1 = w2.component<Mass>();
-    test_assert(m_1.id() == m_2.id());
-}
-
 namespace A {
     struct Comp {
         float x;
@@ -191,7 +174,7 @@ void World_type_id(void) {
 
     auto p = ecs.component<Position>();
 
-    test_assert(p.id() == flecs::type_id<Position>());
+    test_assert(p.id() == ecs.id<Position>());
 }
 
 void World_different_comp_same_name(void) {
@@ -206,16 +189,14 @@ void World_different_comp_same_name(void) {
 }
 
 void World_reregister_after_reset(void) {
-    flecs::world ecs;
+    flecs::world ecs1;
 
-    auto p1 = ecs.component<Position>("Position");
+    auto p1 = ecs1.component<Position>("Position");
 
-    // Simulate different binary
-    flecs::_::cpp_type<Position>::reset();
+    flecs::world ecs2;
+    auto p2 = ecs2.component<Position>("Position");
 
-    auto p2 = ecs.component<Position>("Position");
-
-    test_assert(p1.id() == p2.id());
+    test_assert(ecs1.id() == ecs2.id());
 }
 
 void World_implicit_reregister_after_reset(void) {
@@ -223,14 +204,11 @@ void World_implicit_reregister_after_reset(void) {
 
     ecs.entity().add<Position>();
 
-    flecs::entity_t p_id_1 = flecs::type_id<Position>();
-
-    // Simulate different binary
-    flecs::_::cpp_type<Position>::reset();
+    flecs::entity_t p_id_1 = ecs.id<Position>();
 
     ecs.entity().add<Position>();
 
-    flecs::entity_t p_id_2 = flecs::type_id<Position>();
+    flecs::entity_t p_id_2 = ecs.id<Position>();
 
     test_assert(p_id_1 == p_id_2);
 }
@@ -240,14 +218,11 @@ void World_reregister_after_reset_w_namespace(void) {
 
     ecs.component<ns::FooComp>();
 
-    flecs::entity_t p_id_1 = flecs::type_id<ns::FooComp>();
-
-    // Simulate different binary
-    flecs::_::cpp_type<ns::FooComp>::reset();
+    flecs::entity_t p_id_1 = ecs.id<ns::FooComp>();
 
     ecs.component<ns::FooComp>();
 
-    flecs::entity_t p_id_2 = flecs::type_id<ns::FooComp>();
+    flecs::entity_t p_id_2 = ecs.id<ns::FooComp>();
 
     test_assert(p_id_1 == p_id_2);
 }
@@ -257,11 +232,11 @@ void World_reregister_namespace(void) {
 
     ecs.component<ns::FooComp>();
 
-    flecs::entity_t p_id_1 = flecs::type_id<ns::FooComp>();
+    flecs::entity_t p_id_1 = ecs.id<ns::FooComp>();
 
     ecs.component<ns::FooComp>();
 
-    flecs::entity_t p_id_2 = flecs::type_id<ns::FooComp>();
+    flecs::entity_t p_id_2 = ecs.id<ns::FooComp>();
 
     test_assert(p_id_1 == p_id_2);
 }
@@ -275,9 +250,6 @@ void World_reregister_after_reset_different_name(void) {
 
     ecs.component<Position>("Position");
 
-    // Simulate different binary
-    flecs::_::cpp_type<Position>::reset();
-
     ecs.component<Position>("Velocity");
 }
 
@@ -289,8 +261,6 @@ void World_register_component_w_reset_in_multithreaded(void) {
     flecs::entity pos = ecs.component<Position>();
     flecs::entity e = ecs.entity();
 
-    flecs::_::cpp_type<Position>::reset();
-
     ecs.readonly_begin();
     e.set<Position>({10, 20});
     ecs.readonly_end();
@@ -345,9 +315,6 @@ void World_reimport_module_after_reset(void) {
 
     auto m1 = ecs.import<FooModule>();
 
-    // Simulate different binary
-    flecs::_::cpp_type<FooModule>::reset();
-
     auto m2 = ecs.import<FooModule>();
     
     test_assert(m1.id() == m2.id());
@@ -404,8 +371,6 @@ void World_c_interop_after_reset(void) {
     auto e_pos = ecs.lookup("test::interop::module::Position");
     test_assert(e_pos.id() != 0);
 
-    flecs::_::cpp_type<test::interop::module>::reset();
-
     ecs.import<test::interop::module>();
 }
 
@@ -440,8 +405,6 @@ void World_implicit_register_after_reset_register_w_custom_name(void) {
     flecs::entity c = ecs.component<Position>("MyPosition");
     test_str(c.name(), "MyPosition");
 
-    flecs::reset(); // Simulate working across boundary
-
     auto e = ecs.entity().add<Position>();
     test_assert(e.has<Position>());
     test_assert(e.has(c));
@@ -453,8 +416,6 @@ void World_register_after_reset_register_w_custom_name(void) {
     flecs::entity c1 = ecs.component<Position>("MyPosition");
     test_str(c1.name(), "MyPosition");
 
-    flecs::reset(); // Simulate working across boundary
-
     flecs::entity c2 = ecs.component<Position>();
     test_str(c2.name(), "MyPosition");
 }
@@ -465,21 +426,17 @@ void World_register_builtin_after_reset(void) {
     auto c1 = ecs.component<flecs::Component>();
     test_assert(c1 == ecs_id(EcsComponent));
 
-    flecs::reset(); // Simulate working across boundary
-
     auto c2 = ecs.component<flecs::Component>();
     test_assert(c2 == ecs_id(EcsComponent));
     test_assert(c1 == c2);
 }
 
 void World_register_meta_after_reset(void) {
-    flecs::world ecs;
-
-    auto c1 = ecs.component<Position>();
-
-    flecs::reset(); // Simulate working across boundary
+    flecs::world ecs1;
+    auto c1 = ecs1.component<Position>();
 
-    auto c2 = ecs.component<Position>()
+    flecs::world ecs2;
+    auto c2 = ecs2.component<Position>()
         .member<float>("x")
         .member<float>("y");
 
@@ -1528,12 +1485,11 @@ void World_reset_all(void) {
         vel = ecs.component<Velocity>();
     }
 
-    test_assert(flecs::type_id<Position>() == pos);
-    test_assert(flecs::type_id<Velocity>() == vel);
-
-    flecs::reset();
+    flecs::world ecs;
+    test_assert(ecs.id<Position>() == pos);
+    test_assert(ecs.id<Velocity>() == vel);
 
-    test_assert(flecs::type_id<Position>() == 0);
+    test_assert(ecs.id<Position>() == 0);
 
     /* Register components in opposite order, should result in different ids */
     {
@@ -1652,18 +1608,17 @@ void World_component_w_low_id(void) {
 }
 
 void World_reregister_after_reset_w_hooks_and_in_use(void) {
-    flecs::world ecs;
+    flecs::world ecs1;
 
-    ecs.component<Pod>();
+    ecs1.component<Pod>();
 
-    ecs.entity().add<Pod>();
+    ecs1.entity().add<Pod>();
     test_int(1, Pod::ctor_invoked);
 
-    flecs::reset();
+    flecs::world ecs2;
+    ecs2.component<Pod>();
 
-    ecs.component<Pod>();
-
-    ecs.entity().add<Pod>();
+    ecs2.entity().add<Pod>();
     test_int(2, Pod::ctor_invoked);
 }
 
diff --git a/test/cpp_api/src/main.cpp b/test/cpp_api/src/main.cpp
index 22d9823b68..fecbdc309b 100644
--- a/test/cpp_api/src/main.cpp
+++ b/test/cpp_api/src/main.cpp
@@ -1026,7 +1026,6 @@ void WorldFactory_module(void);
 // Testsuite 'World'
 void World_builtin_components(void);
 void World_multi_world_empty(void);
-void World_multi_world_component(void);
 void World_multi_world_component_namespace(void);
 void World_multi_world_module(void);
 void World_multi_world_recycled_component(void);
@@ -5252,10 +5251,6 @@ bake_test_case World_testcases[] = {
         "multi_world_empty",
         World_multi_world_empty
     },
-    {
-        "multi_world_component",
-        World_multi_world_component
-    },
     {
         "multi_world_component_namespace",
         World_multi_world_component_namespace
@@ -6448,7 +6443,7 @@ static bake_test_suite suites[] = {
         "World",
         NULL,
         NULL,
-        106,
+        105,
         World_testcases
     },
     {