JavaScript browser-extension

Open-source JavaScript projects categorized as browser-extension

Top 23 JavaScript browser-extension Projects

browser-extension
  1. uBlock

    uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.

    Project mention: Someone at YouTube Needs Glasses | news.ycombinator.com | 2025-04-30

    well if you are still gonna browse on chrome don't settle for the ublock originless experience.

    * download a release zip: https://github.com/gorhill/ublock/releases (expand Assets).

  2. SurveyJS

    JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Add the SurveyJS white-label form builder to your JavaScript app (React/Angular/Vue3). Build complex JSON forms without coding. Fully customizable, works with any backend, perfect for data-heavy apps. Learn more.

    SurveyJS logo
  3. Quasar Framework

    Quasar Framework - Build high-performance VueJS user interfaces in record time

    Project mention: PocketBase + React Native | dev.to | 2025-05-09

    I have a bit of an obsession with finding the fastest way to launch apps. My goal is to be able to create fully functional MVP's and proofs of concept in less than a day. That means being able to spin up a backend and then implement a frontend as efficiently as possible. For the backend, PocketBase has been my favorite lately. On the frontend I am still trying to find a winner. I like Quasar (VueJS + Capacitor) which is fantastic for web apps, but falls a bit short for mobile apps. I've been eyeing React Native lately especially since Expo offers a ton of great plugins like Location and also supports remote updates.

  4. octotree

    GitHub on steroids

  5. chatGPTBox

    Integrating ChatGPT into your browser deeply, everything you need is here

  6. buster

    Captcha solver extension for humans, available for Chrome, Edge and Firefox

    Project mention: Buster: Captcha Solver for Humans | news.ycombinator.com | 2024-08-04
  7. undiscord

    Undiscord - Delete all messages in a Discord server / channel or DM (Easy and fast) Bulk delete

  8. AdNauseam

    AdNauseam: Fight back against advertising surveillance

    Project mention: AdNauseam: Fight back against advertising surveillance | news.ycombinator.com | 2024-12-29
  9. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
  10. I-Still-Dont-Care-About-Cookies

    Debloated fork of the extension "I don't care about cookies"

    Project mention: Show HN: A Chrome extension that will auto-reject non-essential cookies | news.ycombinator.com | 2025-04-29

    What's the difference between this and "I still don't care about cookies"[0]?

    [0] https://github.com/OhMyGuus/I-Still-Dont-Care-About-Cookies

  11. GhostText

    👻 Use your text editor to write in your browser. Everything you type in the editor will be instantly updated in the browser (and vice versa).

  12. awesome-browser-extensions-for-github

    A collection of awesome browser extensions for GitHub.

  13. web-ext

    A command line tool to help build, run, and test web extensions

  14. search-by-image

    Browser extension for reverse image search, available for Chrome, Edge and Safari

  15. marinara

    Pomodoro® time management assistant for Chrome

  16. keepassxc-browser

    KeePassXC Browser Extension

  17. nightTab

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

  18. github-hovercard

    Neat hovercards for GitHub.

  19. better-onetab

    :bookmark_tabs: A better OneTab for Chrome :memo:

  20. read-aloud

    An awesome browser extension that reads aloud webpage content with one click

  21. duckduckgo-privacy-extension

    DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome.

    Project mention: DuckDuckGo for Mac is now open source | news.ycombinator.com | 2024-08-29
  22. web-archives

    Browser extension for viewing archived and cached versions of web pages, available for Chrome, Edge and Safari

    Project mention: Google Cache Is Fully Dead | news.ycombinator.com | 2024-09-24

    >Hopefully they are also making substantial donations to the Internet Archive, since they will be directing a lot of traffic into it and basically using their infrastructure as a feature on their main product

    WebArchive link is hidden so deep in the "About the source" page that vast majority of Google users won't even know that it exists.

    There is excellent browser extension called Web Archives[0] that hooks all major web archiving services e.g. Archive.is, Wayback Machine and others in one place.

    [0] https://github.com/dessant/web-archives

  23. challenge-bypass-extension

    DEPRECATED - Client for Privacy Pass protocol providing unlinkable cryptographic tokens

    Project mention: Obscura VPN – Privacy that's more than a promise | news.ycombinator.com | 2025-02-19

    I can understand that concern, and I think in the future some version of [Privacy Pass](https://privacypass.github.io/) will allow for site operators to differentiate between normal vs. abusive users without relying on IP reputation (which is more unreliable anyway since CGNAT is a thing).

  24. maxurl

    Finds larger/original versions of images and videos

  25. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
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).

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Index

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

# Project Stars
1 uBlock 53,592
2 Quasar Framework 26,571
3 octotree 23,005
4 chatGPTBox 10,539
5 buster 8,483
6 undiscord 5,787
7 AdNauseam 4,761
8 I-Still-Dont-Care-About-Cookies 3,819
9 GhostText 3,434
10 awesome-browser-extensions-for-github 3,092
11 Consent-O-Matic 2,970
12 web-ext 2,872
13 search-by-image 2,621
14 marinara 2,417
15 keepassxc-browser 1,907
16 nightTab 1,907
17 github-hovercard 1,851
18 better-onetab 1,708
19 read-aloud 1,493
20 duckduckgo-privacy-extension 1,333
21 web-archives 1,317
22 challenge-bypass-extension 1,250
23 maxurl 1,246

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