1266 Open source projects that are alternatives of or similar to Preact Devtools

Extension to re-implement the "View Image" and "Search by image" buttons into google images.

A browser extension that deletes your news feed and replaces it with a nice quote

🖼 新浪微博图床 Chrome/Firefox 扩展，支持同步到微相册

Useragent analysis tool.浏览器分析判断工具 - 用户代理、操作系统信息

Adblock Fast is a new, faster ad blocker for Android, iOS, Chrome, and Opera.

Adds an Ember tab to the browser's Developer Tools that allows you to inspect Ember objects in your application.

Discreetly surf the web! Control exactly how you want web pages to look like.

Debug webauthn with a chrome extension that adds a virtual authenticators tab to devtools

List of standard and browser specific CSS properties.

Your Chrome Alfred - An Extension to provide spotlight-like interface for your bookmarks

Popout video player in Firefox

HangarXPLOR is a chrome extension that upgrades the UI/UX of the Star Citizen hangar page

Bulk URL Opener is an application that provides the user with multiple utilities to help with managing and using large amounts of urls

Allows controlling media player on different sites with Media Player widget on your desktop

Add instant search capabilities to GitHub's search bar

Vietnamese input method extension (IME) for Firefox, Thunderbird, SeaMonkey, Komodo, etc. — bộ gõ tiếng Việt dành cho Firefox, Thunderbird, SeaMonkey, Komodo, …

AdGuard browser extension

Press Alt+Shift+D to duplicate the current tab (Option+Shift+D on Mac).

Replace your new tab page with a minimal analog clock

angular chrome extension scaffold

📊 User friendly dashboard/tool for discord bot developpers to manage servers

Almighty Book Downloader

Browser hacks to disable WebAssembly (WASM)

🌏 Buttercup browser extension

📑 A better OneTab for Chrome 📝 Temporarily removed from firefox ⚠️ without maintaining in a period & any cooperative purpose are welcome

☁️ Sync your bookmarks privately across browsers

HTTPS server running on localhost

Simple and fast note-taking in Chrome with Google Drive support.

A global domain based database for NoScript, uBlock, uMatrix & ScriptSafe

Sample code for developing an OpenTok screen-sharing extension for Google Chrome and Firefox

A Chrome extension that easily clips selections to Obsidian

Show all your chromium passwords in format ready to import in other browser like FireFox

The Freedom to Open URLs in Third-Party Browsers on iOS with Custom UIActivity Subclasses.

Manage your passwords easily and securely, via browser extension for Firefox, Chrome, Opera

A minimal Chrome / Firefox extension to help you learn Japanese words in each new tab.

RetroTxt is the WebExtension that turns ANSI, ASCII, NFO text into in-browser HTML

WebExtension for saving media, links, or selections into user-defined directories

podStation is a web podcast aggregator for Chrome.

[NOT MAINTAINED] Please use <https://github.com/SeleniumHQ/docker-selenium>

Open Source Intelligence Browser Extension

WikipediaP2P.org Chrome Extension

Pomodoro® time management assistant for Chrome

🌳 Tree for GitLab

A 1Password-compatible command-line and web-based password manager

All-in-one browser extension for Scratch.

An open source tab manager for Chrome

Better code navigation in github

🎹🐻 Nook is a Chrome/Firefox extension that plays Animal Crossing hourly themes.

A user styles manager for Firefox and Chrome

A tool for monitoring and debugging urql during development

Adds the ability to disable JavaScript on specific sites.

A SurfingKeys configuration which adds 130+ key mappings for 20+ sites & OmniBar search suggestions for 50+ sites

An open source browser extension for adding/managing download tasks to your Synology DiskStation.

Simple browser extension for managing accounts in a browser and allowing the signing of extrinsics using these accounts. Also provides a simple interface for compliant extensions for dapps.

Experimental Firefox extension for login management experiences, not being actively developed

Extension that restores RSS Feed Livemarks in Firefox.

KeePass 2.x plugin which imports credentials from various browsers.

A fully fledged HTML5 player for Crunchyroll.

Never doubt how to pronounce a word. Double-click it and your browser will say it out loud for you!

An add-on that aims to add Vivaldi style toolbar colouring to the Firefox UI