JavaScript Extension

Open-source JavaScript projects categorized as Extension

Top 23 JavaScript Extension Projects

  • redux-devtools-extension

    Redux DevTools extension.

    Project mention: State Management Nx React Native/Expo Apps with TanStack Query and Redux | | 2024-02-17

    Dev tools: @redux-devtools/extension

  • metamask-extension

    :globe_with_meridians: :electric_plug: The MetaMask browser extension enables browsing Ethereum blockchain enabled websites

    Project mention: ¡Entiende las Attestations! Guía definitiva📚 | | 2024-01-29
  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  • ProjectVisBug

    FireBug for designers › Edit any webpage, in any state

    Project mention: VisBug: Open-source web design debug tools | | 2023-06-24
  • Surfingkeys

    Map your keys for web surfing, expand your browser with javascript and keyboard.

    Project mention: Surfingkeys: Supercharged Vimium with JavaScript Support | | 2023-12-01
  • isometric-contributions

    Browser extension for rendering an isometric pixel art version of your GitHub contribution graph.

  • FastForward

    Don't waste your time with compliance. FastForward automatically skips annoying link shorteners.

    Project mention: FastForward: Bypass link shorteners, don't waste time getting to the final link | | 2024-01-07

    I quickly scrolled through the supported website list, and I haven’t recognized any familiar websites.

    All of these look super obscure.

  • youtube

    [Top~1 YouTube / Video Web-Extension] Enrich your experience & choice! 🧰100+ clever features📌set & forget📌Longest-standing (yet rare & tough alone. Please help/join🧩us👨‍👩‍👧‍👧) ..⋮ {playback|content discovery|player|extra buttons|distractions|related videos|shorts|ads|quality|codec|full tab|full screen} (by code-charity)

    Project mention: is it possible to remove some of these button like clip or just put the save button in front? | /r/youtube | 2023-06-09

    I'm using this:

  • Onboard AI

    ChatGPT with full context of any GitHub repo. Onboard AI learns any GitHub repo in minutes and lets you chat with it to locate functionality, understand different parts, and generate new code. Use it for free at

  • marinara

    Pomodoro® time management assistant for Chrome

  • chrome-extension-cli

    🚀 The CLI for your next Chrome Extension

  • nightTab

    A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks with nightTab.

    Project mention: Is there anyway to make the NightTab editor transparent? | /r/nighttab | 2023-03-02

    Sorry, that is not possible at the moment. It's something I've thought about adding but the project is not in active development at the moment.

  • wasavi

    wasavi is an extension for Chrome, Firefox, and Opera. wasavi changes a textarea element to virtual vi editor which supports almost all the vi/ex commands.

    Project mention: Vim in Firefox: Wasavi is dead, Saka-Key is dead, Vim-Vixen is dead, Vimium is stagnating. Is Tridactyl the new monarch of Vim-like firefox ? | /r/firefox | 2023-04-25


  • blur-my-shell

    Extension that adds a blur look to different parts of the GNOME Shell, including the top panel, dash and overview

    Project mention: My GNOME 44 after customized with Gruvbox Color Scheme | /r/ManjaroLinux | 2023-09-11

    GNOME Extensions : quick-settings-tweaker, appindicator and KStatusNotifier, arcmenu, blur-my-shell, dash-to-panel, forge, gsconnect, just-perfection, show-desktop-button, space-bar, user-themes and vitals


    Improving GitHub's Forks list discoverability through automatic filtering. The project offers an online tool and a Chrome extension.

    Project mention: Any update on TOTK patches? Some questions about emulation for a newbie. | /r/NewYuzuPiracy | 2023-05-02

    Here "branches" is for Git branches - or, rather, forks - of the emulator project. It means checking GitHub (or to see if any individual developers have recently forked the project and made new commits. If so, you can try to build the updated project, and see how it goes.

  • TwitchNoSub

    An extension to show sub only VOD on Twitch

    Project mention: ULPT: What are some unethical websites that you benefit from? | /r/UnethicalLifeProTips | 2023-06-30

    I have a list. 1. is, in my opinion, the best pirating site, especially if you use Brave as your preferred browser. You get tons of movies and shows for free, and there are no annoying ads when you click the play button or the search bar. 2. TwitchNoSub Not a website, an extension, but still, you can watch all sub-only Twitch videos for free. 3. YouTube, you can watch hundreds of millions, if not billions, of videos for completely free, and again, if you use Brave, you get absolutely no ads. (obviously satire lmao)

  • snipsnap

    Speed up your development with a powerful set of tools

  • Stay

    Stay is a local userscript manager and an extension sample for Safari on iOS/iPadOS.

  • sieve

    Sieve Script Editor (by thsmi)

  • obsidian-clipper

    A Chrome extension that easily clips selections to Obsidian

    Project mention: Flexible web clippers that work with Obsidian? | /r/ObsidianMD | 2023-04-24

    A High-Fidelity Web Archiving Extension for Chrome and Chromium based browsers!

    Project mention: Webrecorder: Capture interactive websites and replay them at a later time | | 2023-08-01
  • slashy

    Supercharge Notion with custom commands to record, draw, and more ✍️

  • scriptsafe

    a browser extension to bring security and privacy to chrome, firefox, and opera

  • WebXR-emulator-extension

    WebXR emulator extension

  • WorkOS

    The modern API for authentication & user identity. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2024-02-17.

JavaScript Extension related posts


What are some of the best open-source Extension projects in JavaScript? This list will help you:

Project Stars
1 redux-devtools-extension 13,480
2 metamask-extension 11,168
3 ProjectVisBug 5,299
4 Surfingkeys 4,970
5 isometric-contributions 3,431
6 FastForward 3,356
7 youtube 2,919
8 marinara 2,283
9 chrome-extension-cli 2,170
10 nightTab 1,599
11 wasavi 1,469
12 blur-my-shell 1,219
13 1,105
14 TwitchNoSub 1,056
15 snipsnap 1,053
16 Stay 998
17 sieve 712
18 obsidian-clipper 689
19 683
20 slashy 518
21 cookie-editor 513
22 scriptsafe 488
23 WebXR-emulator-extension 440
The modern API for authentication & user identity.
The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.