diff --git a/.flake8 b/.flake8
deleted file mode 100644
index f4546adb..00000000
--- a/.flake8
+++ /dev/null
@@ -1,2 +0,0 @@
-[flake8]
-max_line_length = 88
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 18758124..32007dea 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -13,7 +13,8 @@ pre-commit run --all-files  # to run on all files now
 
 ## Docstrings
 
-Follow [Google style](https://google.github.io/styleguide/pyguide.html#38-comments-and-docstrings)
+Follow
+[Google style](https://google.github.io/styleguide/pyguide.html#38-comments-and-docstrings)
 for docstrings.
 
 ## Localization
diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
index 696a67a2..23960303 100644
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -12,7 +12,10 @@
 
 Please include **code** that reproduces the issue.
 
-The [best reproductions](https://stackoverflow.com/help/minimal-reproducible-example) are [self-contained scripts](https://ericlippert.com/2014/03/05/how-to-debug-small-programs/) with minimal dependencies.
+The [best reproductions](https://stackoverflow.com/help/minimal-reproducible-example)
+are
+[self-contained scripts](https://ericlippert.com/2014/03/05/how-to-debug-small-programs/)
+with minimal dependencies.
 
 ```python
 code goes here
diff --git a/.github/SECURITY.md b/.github/SECURITY.md
index 198aa76f..74487a66 100644
--- a/.github/SECURITY.md
+++ b/.github/SECURITY.md
@@ -1,4 +1,4 @@
 # Security policy
 
-Security reports can be made via [Tidelift](https://tidelift.com/security).
-Tidelift will coordinate the fix and disclosure.
+Security reports can be made via [Tidelift](https://tidelift.com/security). Tidelift
+will coordinate the fix and disclosure.
diff --git a/.github/workflows/labels.yml b/.github/workflows/labels.yml
index 90696d0a..859c9483 100644
--- a/.github/workflows/labels.yml
+++ b/.github/workflows/labels.yml
@@ -1,4 +1,8 @@
 name: Sync labels
+
+permissions:
+  pull-requests: write
+
 on:
   push:
     branches:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 5e79664a..85097631 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -2,6 +2,12 @@ name: Lint
 
 on: [push, pull_request, workflow_dispatch]
 
+env:
+  FORCE_COLOR: 1
+
+permissions:
+  contents: read
+
 jobs:
   lint:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2e18713a..decdc3c6 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,7 +24,6 @@ jobs:
           allow-prereleases: true
           cache: pip
 
-
       - name: Install Linux dependencies
         if: startsWith(matrix.os, 'ubuntu')
         run: |
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index bf3a88c5..b190cffe 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,56 +1,24 @@
 repos:
-  - repo: https://github.com/asottile/pyupgrade
-    rev: v3.14.0
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.1.6
     hooks:
-      - id: pyupgrade
-        args: [--py38-plus]
+      - id: ruff
+        args: [--fix, --exit-non-zero-on-fix]
 
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 23.9.1
+    rev: 23.11.0
     hooks:
       - id: black
 
-  - repo: https://github.com/PyCQA/isort
-    rev: 5.12.0
-    hooks:
-      - id: isort
-        args: [--add-import=from __future__ import annotations]
-
-  - repo: https://github.com/PyCQA/autoflake
-    rev: v2.2.1
-    hooks:
-      - id: autoflake
-        name: autoflake
-        args:
-          [
-            "--in-place",
-            "--remove-unused-variables",
-            "--remove-all-unused-imports",
-          ]
-        language: python
-        files: \.py$
-
-  - repo: https://github.com/PyCQA/flake8
-    rev: 6.1.0
-    hooks:
-      - id: flake8
-        additional_dependencies:
-          [flake8-2020, flake8-errmsg, flake8-implicit-str-concat]
-
-  - repo: https://github.com/pre-commit/pygrep-hooks
-    rev: v1.10.0
-    hooks:
-      - id: python-check-blanket-noqa
-      - id: python-no-log-warn
-
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v4.5.0
     hooks:
       - id: check-case-conflict
       - id: check-merge-conflict
       - id: check-json
       - id: check-toml
       - id: check-yaml
+      - id: debug-statements
       - id: end-of-file-fixer
       - id: trailing-whitespace
         exclude: \.github/ISSUE_TEMPLATE\.md|\.github/PULL_REQUEST_TEMPLATE\.md
@@ -63,20 +31,20 @@ repos:
         files: "src/"
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.5.1
+    rev: v1.7.0
     hooks:
       - id: mypy
         additional_dependencies: [pytest, types-freezegun, types-setuptools]
         args: [--strict, --pretty, --show-error-codes]
 
   - repo: https://github.com/tox-dev/pyproject-fmt
-    rev: 1.2.0
+    rev: 1.5.1
     hooks:
       - id: pyproject-fmt
         additional_dependencies: [tox]
 
   - repo: https://github.com/abravalheri/validate-pyproject
-    rev: v0.14
+    rev: v0.15
     hooks:
       - id: validate-pyproject
 
@@ -85,5 +53,17 @@ repos:
     hooks:
       - id: tox-ini-fmt
 
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v3.1.0
+    hooks:
+      - id: prettier
+        args: [--prose-wrap=always, --print-width=88]
+        exclude: \.github/ISSUE_TEMPLATE\.md|\.github/PULL_REQUEST_TEMPLATE\.md
+
+  - repo: meta
+    hooks:
+      - id: check-hooks-apply
+      - id: check-useless-excludes
+
 ci:
   autoupdate_schedule: quarterly
diff --git a/README.md b/README.md
index 51d52306..f4293062 100644
--- a/README.md
+++ b/README.md
@@ -9,9 +9,9 @@
 [![MIT License](https://img.shields.io/github/license/python-humanize/humanize.svg)](LICENCE)
 [![Tidelift](https://tidelift.com/badges/package/pypi/humanize)](https://tidelift.com/subscription/pkg/pypi-humanize?utm_source=pypi-humanize&utm_medium=badge)
 
-This modest package contains various common humanization utilities, like turning
-a number into a fuzzy human-readable duration ("3 minutes ago") or into a
-human-readable size or throughput. It is localized to:
+This modest package contains various common humanization utilities, like turning a
+number into a fuzzy human-readable duration ("3 minutes ago") or into a human-readable
+size or throughput. It is localized to:
 
 - Arabic
 - Basque
diff --git a/RELEASING.md b/RELEASING.md
index 5217c004..bc830b5d 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -1,8 +1,8 @@
 # Release Checklist
 
 - [ ] Get `main` to the appropriate code release state.
-      [GitHub Actions](https://github.com/python-humanize/humanize/actions) should be running
-      cleanly for all merges to `main`.
+      [GitHub Actions](https://github.com/python-humanize/humanize/actions) should be
+      running cleanly for all merges to `main`.
       [![GitHub Actions status](https://github.com/python-humanize/humanize/workflows/Test/badge.svg)](https://github.com/python-humanize/humanize/actions)
 
 * [ ] Start from a freshly cloned repo:
@@ -16,7 +16,7 @@ cd humanize
 scripts/generate-translation-binaries.sh
 ```
 
-* [ ] (Optional) Create a distribution and release on **TestPyPI**:
+- [ ] (Optional) Create a distribution and release on **TestPyPI**:
 
 ```bash
 pip install -U pip build keyring twine
@@ -33,13 +33,13 @@ pip3 install -U -i https://test.pypi.org/simple/ humanize --pre
 python3 -c "import humanize; print(humanize.__version__)"
 ```
 
-* [ ] Tag with the version number:
+- [ ] Tag with the version number:
 
 ```bash
 git tag -a 2.1.0 -m "Release 2.1.0"
 ```
 
-* [ ] Create a distribution and release on **live PyPI**:
+- [ ] Create a distribution and release on **live PyPI**:
 
 ```bash
 pip install -U pip build keyring twine
@@ -48,7 +48,7 @@ python -m build
 twine check --strict dist/* && twine upload --repository pypi dist/*
 ```
 
-* [ ] Check installation:
+- [ ] Check installation:
 
 ```bash
 pip uninstall -y humanize
@@ -56,13 +56,15 @@ pip install -U humanize
 python3 -c "import humanize; print(humanize.__version__)"
 ```
 
-* [ ] Push tag:
- ```bash
+- [ ] Push tag:
+
+```bash
 git push --tags
 ```
 
-* [ ] Edit release draft, adjust text if needed: https://github.com/python-humanize/humanize/releases
+- [ ] Edit release draft, adjust text if needed:
+      https://github.com/python-humanize/humanize/releases
 
-* [ ] Check next tag is correct, amend if needed
+- [ ] Check next tag is correct, amend if needed
 
-* [ ] Publish release
+- [ ] Publish release
diff --git a/docs/index.md b/docs/index.md
index 6cf2eb15..80d4bb24 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -2,10 +2,10 @@
 
 Welcome to the humanize API reference.
 
-* [Number](number.md)
-* [Time](time.md)
-* [Filesize](filesize.md)
-* [I18n](i18n.md)
+- [Number](number.md)
+- [Time](time.md)
+- [Filesize](filesize.md)
+- [I18n](i18n.md)
 
 {%
    include-markdown "../README.md"
diff --git a/pyproject.toml b/pyproject.toml
index 431ef31a..5ba7c132 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,8 +62,31 @@ artifacts = [
 [tool.hatch.version.raw-options]
 local_scheme = "no-local-version"
 
-[tool.isort]
-profile = "black"
+[tool.ruff]
+line-length = 88
+select = [
+  "E", # pycodestyle errors
+  "EM", # flake8-errmsg
+  "F", # pyflakes errors
+  "I", # isort
+  "ISC", # flake8-implicit-str-concat
+  "PGH", # pygrep-hooks
+  "RUF100", # unused noqa (yesqa)
+  "UP", # pyupgrade
+  "W", # pycodestyle warnings
+  "YTT", # flake8-2020
+  # "LOG", # TODO: enable flake8-logging when it's not in preview anymore
+]
+extend-ignore = [
+  "E203", # Whitespace before ':'
+  "E221", # Multiple spaces before operator
+  "E226", # Missing whitespace around arithmetic operator
+  "E241", # Multiple spaces after ','
+]
+
+[tool.ruff.isort]
+required-imports = ["from __future__ import annotations"]
+known-first-party = ["humanize"]
 
 [tool.pytest.ini_options]
 addopts = "--color=yes"
diff --git a/src/humanize/number.py b/src/humanize/number.py
index ff0c7e25..9329c286 100644
--- a/src/humanize/number.py
+++ b/src/humanize/number.py
@@ -8,10 +8,9 @@
 from typing import TYPE_CHECKING
 
 from .i18n import _gettext as _
-from .i18n import _ngettext
+from .i18n import _ngettext, decimal_separator, thousands_separator
 from .i18n import _ngettext_noop as NS_
 from .i18n import _pgettext as P_
-from .i18n import decimal_separator, thousands_separator
 
 if TYPE_CHECKING:
     if sys.version_info >= (3, 10):
diff --git a/tests/test_number.py b/tests/test_number.py
index bc677859..9bb94756 100644
--- a/tests/test_number.py
+++ b/tests/test_number.py
@@ -190,15 +190,15 @@ def test_fractional(test_input: float | str, expected: str) -> None:
         ([5781651000], "5.78 x 10⁹"),
         (["1000"], "1.00 x 10³"),
         (["99"], "9.90 x 10¹"),
-        ([float(0.3)], "3.00 x 10⁻¹"),
+        ([0.3], "3.00 x 10⁻¹"),
         (["foo"], "foo"),
         ([None], "None"),
         ([1000, 1], "1.0 x 10³"),
-        ([float(0.3), 1], "3.0 x 10⁻¹"),
+        ([0.3, 1], "3.0 x 10⁻¹"),
         ([1000, 0], "1 x 10³"),
-        ([float(0.3), 0], "3 x 10⁻¹"),
-        ([float(1e20)], "1.00 x 10²⁰"),
-        ([float(2e-20)], "2.00 x 10⁻²⁰"),
+        ([0.3, 0], "3 x 10⁻¹"),
+        ([1e20], "1.00 x 10²⁰"),
+        ([2e-20], "2.00 x 10⁻²⁰"),
         ([float(-3e20)], "-3.00 x 10²⁰"),
         ([float(-4e-20)], "-4.00 x 10⁻²⁰"),
         ([math.nan], "NaN"),