diff --git a/main.ts b/main.ts
index f72ccf1..864b374 100644
--- a/main.ts
+++ b/main.ts
@@ -5,7 +5,7 @@ import {
 import { removeWikiLink, removeUrlLink, url2WikiLink, convertWikiLinkToMarkdown } from "src/link";
 import { TextFormatSettingTab } from "src/settings/settingTab";
 import { FormatSettings, DEFAULT_SETTINGS, CalloutTypeDecider, CustomReplaceBuiltIn } from "src/settings/types";
-import { array2markdown, table2bullet, capitalizeWord, capitalizeSentence, removeAllSpaces, zoteroNote, textWrapper, replaceLigature, ankiSelection, sortTodo, requestAPI, headingLevel, slugify, snakify, extraDoubleSpaces, toTitleCase, customReplace, convertLatex } from "src/format";
+import { array2markdown, table2bullet, capitalizeWord, capitalizeSentence, removeAllSpaces, zoteroNote, textWrapper, replaceLigature, ankiSelection, sortTodo, requestAPI, headingLevel, slugify, snakify, extraDoubleSpaces, toTitleCase, customReplace, convertLatex, camelCase } from "src/format";
 import { CustomReplacementBuiltInCommands, LetterCaseCommands } from "src/commands";
 import { getString } from "src/langs/langs";
 import { selectionBehavior, FormatSelectionReturn } from "src/types";
@@ -145,6 +145,22 @@ export default class TextFormat extends Plugin {
         this.editorTextFormat(editor, view, "snakify");
       },
     });
+    this.addCommand({
+      id: "camel-case-lower",
+      name: { en: "camelCase selected text", zh: "使用小驼峰格式化选中文本", "zh-TW": "使用小駝峰格式化選取文字" }[lang],
+      icon: "case-sensitive",
+      editorCallback: (editor: Editor, view: MarkdownView) => {
+        this.editorTextFormat(editor, view, "camel-case", { lowerFirst: true });
+      },
+    });
+    this.addCommand({
+      id: "camel-case-upper",
+      name: { en: "CamelCase selected text", zh: "使用大驼峰格式化选中文本", "zh-TW": "使用大駝峰格式化選取文字" }[lang],
+      icon: "case-sensitive",
+      editorCallback: (editor: Editor, view: MarkdownView) => {
+        this.editorTextFormat(editor, view, "camel-case", { lowerFirst: false });
+      },
+    });
 
     this.addCommand({
       id: "heading-upper",
@@ -689,6 +705,9 @@ export default class TextFormat extends Plugin {
         case "snakify":
           replacedText = snakify(selectedText);
           break;
+        case "camel-case":
+          replacedText = camelCase(selectedText, context.lowerFirst);
+          break;
         case "custom-replace":
           replacedText = customReplace(selectedText, context.settings);
           break;
diff --git a/manifest-beta.json b/manifest-beta.json
index 9a20436..87ef66b 100644
--- a/manifest-beta.json
+++ b/manifest-beta.json
@@ -1,7 +1,7 @@
 {
 	"id": "obsidian-text-format",
 	"name": "Text Format",
-	"version": "3.0.1-b1",
+	"version": "3.0.2-b1",
 	"minAppVersion": "0.9.7",
 	"description": "Format text such as lowercase/uppercase/capitalize/titlecase, converting order/bullet list, removing redundant spaces/newline characters.",
 	"author": "Benature",
diff --git a/src/format.ts b/src/format.ts
index 681e434..9354641 100644
--- a/src/format.ts
+++ b/src/format.ts
@@ -202,9 +202,9 @@ export function array2markdown(content: string): string {
     return beautify_markdown;
 }
 
-export function toTitleCase(text: string, settings: FormatSettings): string {
+export function toTitleCase(text: string, settings: FormatSettings | null = null): string {
     // reference: https://github.com/gouch/to-title-case
-    var properNouns = RegExp(`^(` + settings.ProperNoun.split(",").map((w) => w.trim()).join("|") + `)$`);
+    var properNouns = RegExp(`^(` + settings?.ProperNoun.split(",").map((w) => w.trim()).join("|") + `)$`);
     var smallWords =
         /^(a|an|and|as|at|but|by|en|for|if|in|nor|of|on|or|per|the|to|v.?|vs.?|via)$/i;
     var alphanumericPattern = /([A-Za-z0-9\u00C0-\u00FF])/;
@@ -213,10 +213,10 @@ export function toTitleCase(text: string, settings: FormatSettings): string {
     return text.split(wordSeparators)
         .map(function (current: string, index: number, array: string[]): string {
 
-            if (current.search(properNouns) > -1) { /* Check for proper nouns */
+            if (settings && current.search(properNouns) > -1) { /* Check for proper nouns */
                 return current;
             } else {
-                if (settings.LowercaseFirst) {
+                if (settings && settings.LowercaseFirst) {
                     current = current.toLowerCase();
                 }
             }
@@ -524,12 +524,21 @@ export function slugify(text: string, maxLength: number = 76): string {
     return text;
 }
 
-export function snakify(text: string, maxLength: number = 76): string {
+export function snakify(text: string): string {
     text = text.toLowerCase();
     text = text.replace(/\s+/g, "_");
     return text;
 }
 
+export function camelCase(text: string, lowerFirst = false): string {
+    text = toTitleCase(text.toLowerCase());
+    text = text.replace(/\s+/g, "");
+    if (lowerFirst) {
+        text = text.charAt(0).toLowerCase() + text.slice(1);
+    }
+    return text;
+}
+
 export function extraDoubleSpaces(editor: Editor, view: MarkdownView): void {
     if (!view) {
         return;