Topics / #extension

Extension projects on GitHub

Browser extensions adding functionality to web browsers.

As of , the most-starred Extension projects on GitHub are vscode (193.8K stars), uBlock (68.6K stars) and markdown-here (60.3K stars). GitHub.Locker tracks 53 Extension repositories with 929.2K stars combined. The fastest-growing on October 16 was LinkSwift, with +989 stars in a day.

53Projects
929.2KStars in total
+1.5KStars in a day
Browse in the catalog →github.com/topics/extension ↗

Hot right now

Most stars gained in a day · Oct 16

+989

LinkSwift

hmjz100/LinkSwift · ★ 23.7K

A browser userscript that fetches direct download links for files on nine Chinese cloud drives — Baidu Netdisk, Aliyun Drive, Quark, UC, 123 Pan, Tianyi, China Mobile, Xunlei and Guangya — so you can download without the official clients.

+113

integrity_baozi-

changshuangdaijing/integrity_baozi- · ★ 812

Honest Dousha Bao (诚实豆沙包) is a Chrome extension that checks Bilibili review videos for hidden sponsorships: click the floating bun on a video and in about 20 seconds you get an S/A/B/C sponsorship index with timestamped callouts.

+107

github-chinese

maboloshi/github-chinese · ★ 35.7K

A userscript that translates the entire GitHub interface (menus, titles, buttons, etc.) into Chinese, built on top of the earlier 52cik/github-hans project.

+55

vscode

microsoft/vscode · ★ 193.8K

This is the open-source repository ('Code - OSS') where Microsoft and the community develop Visual Studio Code, a free code editor with built-in debugging, Git, and extension support.

The all-time top

53 projects · by stars

  1. #1 · microsoft/vscode

    vscode

    This is the open-source repository ('Code - OSS') where Microsoft and the community develop Visual Studio Code, a free code editor with built-in debugging, Git, and extension support.

    193.8K
  2. #2 · gorhill/uBlock

    uBlock

    uBlock Origin (uBO) is a free, open-source browser extension that blocks ads, trackers, coin miners, popups, anti-blockers, and malware sites in Chromium and Firefox.

    68.6K
  3. #3 · adam-p/markdown-here

    markdown-here

    Markdown Here is a browser extension for Chrome, Firefox, Opera, and Thunderbird that lets you write an email in Markdown and then render it into styled HTML right in the compose box before sending.

    60.3K
  1. 4

    github-chinese

    35.7Kmaboloshi/github-chinese · JavaScript

    A userscript that translates the entire GitHub interface (menus, titles, buttons, etc.) into Chinese, built on top of the earlier 52cik/github-hans project.

  2. 5

    brackets

    33Kadobe/brackets · JavaScript

    An open-source code editor for web development, focused on HTML, CSS and JavaScript, itself written in those same web technologies and originally built by Adobe.

  3. 6

    refined-github

    32.3Krefined-github/refined-github · TypeScript

    Refined GitHub is a browser extension that cleans up GitHub's interface and bolts on dozens of small quality-of-life features, from sticky sidebars to better diff and comment tools.

  4. 7

    awesome-vscode

    29.1Kviatsko/awesome-vscode · JavaScript

    A curated list of delightful VS Code packages and resources — hand-picked extensions, themes and learning material for Visual Studio Code, organized by category.

  5. 8

    proxyee-down

    24.6Kproxyee-down-org/proxyee-down · Java

    Proxyee Down is an open-source, free HTTP downloader built on an HTTP proxy layer, offering multi-connection chunked downloads and support for custom HTTP requests, with an extension system for special download needs.

  6. 9

    LinkSwift

    23.7Khmjz100/LinkSwift · JavaScript

    A browser userscript that fetches direct download links for files on nine Chinese cloud drives — Baidu Netdisk, Aliyun Drive, Quark, UC, 123 Pan, Tianyi, China Mobile, Xunlei and Guangya — so you can download without the official clients.

  7. 10

    pgvector

    23.4Kpgvector/pgvector · C

    pgvector is an open-source extension that adds vector similarity search to Postgres, so embeddings are stored and queried right next to your relational data. It supports exact and approximate nearest neighbor search.

  8. 11

    octotree

    23.3Kovity/octotree · JavaScript

    Octotree is a browser extension that enhances GitHub code review and exploration — the project bills itself as 'GitHub on steroids'.

  9. 12

    SwitchyOmega

    22.6KFelisCatus/SwitchyOmega · CoffeeScript

    SwitchyOmega is a browser extension for managing and quickly switching between multiple proxy configurations.

  10. 13

    cat-catch

    22.3Kxifangczy/cat-catch · JavaScript

    cat-catch ('Cat Catch') is a browser extension that sniffs out the resources a page loads, filters them into a list, and helps you download media such as m3u8 video streams.

  11. 14

    homebrew-cask

    22.3KHomebrew/homebrew-cask · Ruby

    Homebrew Cask extends Homebrew so you can install and manage prebuilt software from vendors — GUI apps, CLI tools, fonts, plugins — with quick terminal commands instead of dragging icons into Applications.

  12. 15

    chrome-extensions-samples

    17.8KGoogleChrome/chrome-extensions-samples · JavaScript

    This is Google's official collection of sample Chrome Extensions (and legacy Chrome Apps) demonstrating how to use the various extension APIs.

  13. 16

    Thinking-Claude

    17Krichards199999/Thinking-Claude · TypeScript

    Thinking Claude is a project with two parts: a 'Thinking Protocol' - custom instructions that make Claude reason more deeply and systematically before answering - and a browser extension that renders that thinking process as neat, collapsible sections in the Claude.ai chat UI.

  14. 17

    flarum

    16.4Kflarum/flarum · PHP

    Flarum is a discussion/forum platform you run on your own website to build an online community.

  15. 18

    headless-recorder

    15.3Kcheckly/headless-recorder · JavaScript

    Headless Recorder is a Chrome extension that records your clicks and typing in the browser and generates a ready-to-run Playwright or Puppeteer script from them.

  16. 19

    extensions

    15.2Kkeiyoushi/extensions · HTML

    This is an extension repository that supplies manga source plugins for the Mihon Android manga reader app and its compatible forks, letting the app pull manga content from many different websites.

  17. 20

    awesome-tailwindcss

    15.2Kaniftyco/awesome-tailwindcss

    A curated list of resources for Tailwind CSS: official links, IDE extensions, tools, UI libraries/components/templates, and plugins.

  18. 21

    pretty-ts-errors

    14.1Kyoavbls/pretty-ts-errors · TypeScript

    A VSCode extension that turns TypeScript's often unreadable, deeply nested error messages into syntax-highlighted, human-readable text right in the editor.

  19. 22

    SponsorBlock

    13.9Kajayyy/SponsorBlock · TypeScript

    SponsorBlock is an open-source, crowdsourced browser extension that skips sponsor segments in YouTube videos. Users submit the timestamps where a sponsor plug happens, and the extension automatically skips those segments for everyone else.

  20. 23

    return-youtube-dislike

    13.8KAnarios/return-youtube-dislike · JavaScript

    Return YouTube Dislike is an open-source browser extension that brings back the dislike count on YouTube videos after Google hid it from the API.

  21. 24

    redux-devtools-extension

    13.4Kzalmoxisus/redux-devtools-extension · JavaScript

    A browser extension for Redux apps: once you point it at your store, you get DevTools for watching actions and state while you develop.

  22. 25

    ext-saladict

    13.4Kcrimx/ext-saladict · TypeScript

    Saladict (沙拉查词) is a browser extension for Chrome and Firefox that pops up a dictionary when you select a word, translates whole pages, and lets you build a personal word notebook, including inside PDFs.

  23. 26

    metamask-extension

    13.2KMetaMask/metamask-extension · TypeScript

    MetaMask is a browser extension that lets you browse and interact with Ethereum blockchain websites (dapps) directly from your browser, acting as a crypto wallet and Web3 gateway.

  24. 27

    stable-diffusion-webui-forge

    13.1Klllyasviel/stable-diffusion-webui-forge · Python

    Stable Diffusion WebUI Forge is a platform built on top of Stable Diffusion WebUI (using Gradio) that adds GPU memory management and performance improvements for running Stable Diffusion image generation locally.

  25. 28

    chatgpt-google-extension

    13Kwong2/chatgpt-google-extension · TypeScript

    'ChatGPT for Google' is a browser extension that shows a ChatGPT-generated response alongside search engine results on Google and other search engines.

  26. 29

    kiss-translator

    12.9Kfishjar/kiss-translator · JavaScript

    KISS Translator is an open-source side-by-side (bilingual) web translator, shipped both as a full browser extension and as a Greasemonkey/Tampermonkey userscript, that translates web pages, input boxes, selected text, and YouTube subtitles.

  27. 30

    react-devtools

    11Kfacebook/react-devtools

    React DevTools is a browser extension that lets you inspect the hierarchy of React components directly inside the Chrome and Firefox Developer Tools panels.

  28. 31

    cloudstream

    11Krecloudstream/cloudstream · Kotlin

    CloudStream is a free, open-source Android app for streaming and downloading media. It works as an extension-based media center for phones and TVs.

  29. 32

    cython

    10.9Kcython/cython · Cython

    Cython is an optimising compiler for Python: it translates your Python code into C/C++ and compiles it into fast native extension modules. It is the most widely used Python to C compiler.

  30. 33

    cphalcon

    10.8Kphalcon/cphalcon · PHP

    Phalcon is an open-source web framework for PHP that is delivered as a C extension instead of plain PHP files, giving it high performance and low resource consumption.

  31. 34

    chatGPTBox

    10.8KChatGPTBox-dev/chatGPTBox · JavaScript

    ChatGPTBox is a browser extension that integrates ChatGPT and other AI chat models deeply into your browser, letting you pop up a chat dialog on any page, summarize pages, and run AI tools through a selection menu and site integrations.

  32. 35

    rr

    10.7Krr-debugger/rr · C++

    rr is a lightweight tool that records the execution of an application — entire trees of processes and threads — and lets you replay and debug that recording.

  33. 36

    phpredis

    10.2Kphpredis/phpredis · C

    A PHP extension that gives PHP a fast API for talking to the Redis key-value store. It also works with Valkey, Dragonfly, and KeyDB, and is released under the PHP License 3.01.

  34. 37

    SpotiFLAC-Mobile

    6.8Kspotiflacapp/SpotiFLAC-Mobile · Dart

    SpotiFLAC Mobile is an open-source Android and iOS app for downloading music in lossless FLAC quality from multiple sources, with a Flutter UI and a Go backend, no ads and no subscription.

  35. 38

    fleetbase

    4.4Kfleetbase/fleetbase · JavaScript

    Fleetbase is an open-source, modular operating system for logistics and supply chain operations. It covers dispatch, fleet management, live tracking, commerce, warehousing, and finance in one platform, with a REST API, webhooks, and an extension system.

  36. 39

    BrowserKitten

    2.4KPlayer-YN/BrowserKitten · JavaScript

    BrowserKitten (爪爪 / PawWork) is a side-panel Chrome agent that treats your already-logged-in browser as a programmable computer: you select something on the live page, describe the outcome you want, and it hands back an editable sheet, Univer document, or page snapshot.

  37. 40

    pg-jev

    1.2KrealZachi/pg-jev · Shell

    pg-jev (jev) is a PostgreSQL extension that lets you filter, rank and classify table rows using plain-language conditions instead of SQL predicates. Each row is judged by TypeSafe's Jev, a model that returns calibrated probabilities rather than generated text.

  38. 41

    mcp-extensions

    1.1Kopenai/mcp-extensions · TypeScript

    A toolkit that adds ChatGPT-specific capabilities to the Model Context Protocol (MCP), letting plugin developers build features like sidebar entrypoints, custom file viewers, composer mentions, and rich forms that feel like native parts of ChatGPT.

  39. 42

    javranking-extension

    906aizhimou/javranking-extension · TypeScript

    A browser extension that reads the JAV video code on the page you're currently viewing — only after you click its toolbar icon — and shows matching cover art and JavRanking leaderboard info for that title.

  40. 43

    integrity_baozi-

    812changshuangdaijing/integrity_baozi-

    Honest Dousha Bao (诚实豆沙包) is a Chrome extension that checks Bilibili review videos for hidden sponsorships: click the floating bun on a video and in about 20 seconds you get an S/A/B/C sponsorship index with timestamped callouts.

  41. 44

    Youtube-Pro-Plus

    644Archimetrix/Youtube-Pro-Plus · JavaScript

    Youtube Pro+ is a browser extension that overhauls the YouTube interface and playback with a 'Liquid Glass' theme and a big bundle of extra features like speed boosting, SponsorBlock, auto-resume history, screenshots and watch parties.

  42. 45

    PiG

    615MichaelKinsy/PiG · Go

    PiG is a Go port of Pi, the minimal terminal coding agent originally written in TypeScript, rebuilt as a single native binary that starts quickly and needs no Node.js.

  43. 46

    desktop_gifs

    471rayytor/desktop_gifs · JavaScript

    Desktop GIFs is a browser extension that adds a GIF button next to the emoji button in YouTube's comment box, letting you attach a Tenor GIF to a comment or reply from a desktop browser, something YouTube's own desktop site has no button for.

  44. 47

    Instagram-Downloader

    441hoaianle/Instagram-Downloader · JavaScript

    A Chrome extension that downloads photos and videos from Instagram posts, TV, reels, stories, and highlights directly from the page you're viewing.

  45. 48

    kafgres

    417RayElg/kafgres · Rust

    kafgres is a PostgreSQL extension that embeds a full Kafka broker inside Postgres: unmodified Kafka clients connect on port 9092 and Postgres stores all topics, partitions, offsets, and the log itself, giving transactional coupling between the database and the event stream.

  46. 49

    multi-row-tabs

    252hezhizheng/multi-row-tabs · JavaScript

    A Chrome extension (Manifest V3) that displays all tabs in the current window as a multi-row tiled grid, shown as a floating overlay you trigger with a button or shortcut, without modifying any page styles.

  47. 50

    web-source-inspect

    193shaojie-li/web-source-inspect · JavaScript

    React Trace is an experimental Chrome extension that maps a React element on a page back to the JSX/TSX source that created it and opens that exact spot in VS Code or Cursor.

  48. 51

    routeVSCODE

    170yudaprasetya007/routeVSCODE · JavaScript

    9Router Model Connector lets you switch the AI model used in GitHub Copilot Chat inside VS Code instantly, without reloading the editor, by routing requests through a local proxy connected to the 9Router AI gateway.

  49. 52

    deepseek-harness-for-vscode

    157skymecode/deepseek-harness-for-vscode · TypeScript

    A native VS Code extension that brings the DeepSeek Harness coding agent into the editor's sidebar, with session management, streaming Markdown, slash commands, and a plugin center, all without needing a separate WebUI or Harness setup.

  50. 53

    PLHaskell

    148ed-o-saurus/PLHaskell · Python

    PL/Haskell is a PostgreSQL extension — a 'procedural language' — that lets you write, install, and run functions written in Haskell directly from SQL code.

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