JavaScript browser-extension

Open-source JavaScript projects categorized as browser-extension

Top 23 JavaScript browser-extension Projects

  • uBlock

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

  • Project mention: Brave launches Search Ads in key markets after successful test phase | | 2024-05-31

    It "works" on chrome, but it works best on firefox:

  • SurveyJS

    Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

    SurveyJS logo
  • Quasar Framework

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

  • Project mention: Awesome | Top 9 UI Frameworks for Vue.js | | 2024-06-11

    Quasar is a high-performance, responsive, Material Design 2.0+ component library. It allows developers to write a single code base and deploy it as a website, mobile app, or desktop app.

  • octotree

    GitHub on steroids

  • chatGPTBox

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

  • Project mention: Is there an open source "chat" interface for the GPT4 API? | /r/ChatGPTCoding | 2023-12-04
  • buster

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

  • Project mention: AI bots are now better than humans at decoding CAPTCHAs | | 2023-08-17

    The captcha buster extension[^0] along with the service on you computer to move the mouse for you works very very well. It uses google’s TTS (afaik) to transcribe the audio captcha. It’s google verifying another google service works well. I find it very satisfying to not provide my labor to train googles computer vision corpus but instead have the snake bite it’s own tail.

    Anyway, I highly recommend buster, I barely notice captchas anymore with it.


  • undiscord

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

  • Project mention: I read somewhere on a GitHub post that you can Bulk Delete Discord Messages by setting some certain delay or something. | /r/github | 2023-07-08

    The closest thing to discussion threads on github are probable the issues. e.g.

  • AdNauseam

    AdNauseam: Fight back against advertising surveillance

  • Project mention: Please maintain eye contact for the duration of the ad | | 2024-06-13

    That is the reason they went absolutely crazy when adnauseam was introduced, as it used a different approach: it didn't block ads but loaded them in an invisible way, then "clicked" them randomly so that although the user wasn't pestered by ads, advertisers would get completely bogus click through data.

  • 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.

    InfluxDB logo
  • I-Still-Dont-Care-About-Cookies

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

  • Project mention: Firefox private mode now automatically blocks cookie banners for German users | | 2024-01-03

    Funny, I use the "I still don't care about cookies" extension ( right now to automatically accept the cookie banners. They're literally one of the most annoying things that has happened in the web's history

  • 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).

  • Project mention: is qutebrowser compatible with ghosttext? | /r/qutebrowser | 2023-07-19 with a plugin for neovim, my editor of choice:

  • awesome-browser-extensions-for-github

    A collection of awesome browser extensions for GitHub.

  • web-ext

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

  • Project mention: Show HN: I made a CLI tool to create web extensions with no build configuration | | 2024-04-30

    I’ve been pretty happy with web-ext, I’m curious what abstractions and configurations Extensions.js avoids comparatively. I’m assuming you’ll still need a manifest.json, and it looks like both use npm/package.json for dependencies.

    Project mention: The internet used to be fun | | 2024-02-12

    Consent-o-matic handles cookie popups. Some sites do have login-walls, enforced or no. Someone ought make another extension!

  • marinara

    Pomodoro® time management assistant for Chrome

  • search-by-image

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

  • Project mention: Alguem sabe o nome do anime dessa garota? | /r/animebrasil | 2023-12-09

    meah de popotan, essa extensão é perfeita em casos como esse :

  • github-hovercard

    Neat hovercards for GitHub.

  • nightTab

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

  • better-onetab

    :bookmark_tabs: A better OneTab for Chrome :memo: Temporarily removed from firefox :construction: V2 is WIP

  • Project mention: Sessionic: A cross-browser extension to save, manage, restore tabs and sessions | | 2023-10-14
  • keepassxc-browser

    KeePassXC Browser Extension

  • Project mention: GitHub Passkeys are generally available | | 2023-09-25

    A password manager can easily implement passkeys just like it implements passwords.

    Though last I checked no browser had created an API for extensions to implement the passkey API. KeepassXC's implementation for example has to inject JS into every page to override `window.navigator.credentials` ( ). It works but is brittle, so a proper way through extension API would be nice.

  • read-aloud

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

  • Project mention: Ask HN: Any good (free?) TTS article readers? | | 2024-01-14

    I use the Read Aloud Firefox extension to read newspaper articles and the wandering inn stories. Works well for me. In the configuration there are free and premium voices. I enable Google Translate voice and increase the speed a bit.

    Main repo (website there too, or search on Firefox extensions):

  • challenge-bypass-extension

    DEPRECATED - Client for Privacy Pass protocol providing unlinkable cryptographic tokens

  • Project mention: Flagship Mastodon instance to require AI disclosure; bans AI-only accounts | | 2024-03-18

    I'd be fine if "ID for the web" was implemented with privacypass

  • duckduckgo-privacy-extension

    DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome.

  • Project mention: DuckDuckGo Browser for Mac and Windows | | 2024-04-17
  • web-archives

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

  • Project mention: An Ugly Single-Page Website Makes $5k a Month with Affiliate Marketing | | 2024-01-20
  • AI-Prompt-Genius

    Curate a custom library of AI Prompts

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

Project Stars
1 uBlock 44,201
2 Quasar Framework 25,436
3 octotree 22,720
4 chatGPTBox 9,684
5 buster 7,074
6 undiscord 4,977
7 AdNauseam 4,439
8 I-Still-Dont-Care-About-Cookies 3,300
9 GhostText 3,244
10 awesome-browser-extensions-for-github 2,937
11 web-ext 2,614
12 Consent-O-Matic 2,511
13 marinara 2,330
14 search-by-image 1,964
15 github-hovercard 1,810
16 nightTab 1,664
17 better-onetab 1,656
18 keepassxc-browser 1,651
19 read-aloud 1,294
20 challenge-bypass-extension 1,243
21 duckduckgo-privacy-extension 1,214
22 web-archives 1,093
23 AI-Prompt-Genius 1,048

Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App
With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.