Open Source ChromeOS Browser Extensions and Plugins
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Browser Extensions and Plugins for ChromeOS
Browse free open source Browser Extensions and Plugins and projects for ChromeOS below. Use the toggles on the left to filter open source Browser Extensions and Plugins by OS, license, language, programming language, and project status.
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Custom VMs From 1 to 96 vCPUs With 99.95% UptimeLive migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Harper
Offline, privacy-first grammar checker
Harper is an offline, privacy-first English grammar checker written primarily in Rust. It analyzes writing locally, avoiding the latency and data exposure associated with cloud-only services. The engine is designed to lint documents in milliseconds while using a small memory footprint. It can run through WebAssembly in browsers and applications or through native command-line and language-server components. Official integrations support editors and tools including Visual Studio Code, Neovim, Helix, Emacs, Zed, and Obsidian. Its modular repository also contains parsers for formats such as HTML, TeX, Typst, AsciiDoc, and source-code comments. The core currently focuses on English but is designed to be extended to additional languages. -
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conform.nvim
Lightweight yet powerful formatter plugin for Neovim
conform.nvim is a lightweight formatting plugin that integrates external code formatters into Neovim. It calculates minimal text differences instead of blindly replacing the entire buffer after formatting. This approach preserves folds, extmarks, cursor position, and other editor state more reliably. It can also repair responses from LSP formatters that otherwise replace complete buffers. Range formatting works even with many underlying formatters that do not natively provide that capability. The plugin supports format-on-save workflows, sequential or fallback formatters, embedded language formatting, extensive formatter customization, and a simple API modeled after Neovim's native LSP formatting interface. -
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uBlock
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox, and Safari. Available on the Chrome Web Store or for manual installation. Available to install from the homepage. Available for install from the homepage or from the App Store. Available on the Firefox Add-ons site, or for manual installation. Opera shares Chrome's underlying engine, so you can install uBlock simply by grabbing the latest release for Chrome.To benefit from uBlock's higher efficiency, it's advised that you don't use other blockers at the same time (such as AdBlock or Adblock Plus). uBlock will do as well or better than most popular ad blockers. It's important to note that blocking ads is not theft. Don't fall for this creepy idea. The ultimate logical consequence of blocking = theft is the criminalisation of the inalienable right to privacy. -
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Gradle Versions Plugin
Gradle plugin to discover dependency updates
Gradle Versions Plugin is a Gradle plugin that discovers newer versions of project dependencies and reports which packages are current, outdated, unresolved, or ahead of the selected release level. It adds a dependencyUpdates task that can scan regular dependencies and entries declared through version catalogs. The plugin reports findings without modifying build files or applying upgrades automatically. Users can control revision strategies, filter unstable releases, respect declared version bounds, and check constraints. Reports can be generated in plain text, JSON, XML, HTML, or custom formats. It also supports multi-project builds, configurable output paths, Gradle update checks, and settings-based integration. -
PRTG Catches Network Issues Before They Cause DowntimeReactive troubleshooting usually means hearing about a problem from frustrated users, not your monitoring tool. PRTG sets threshold-based alerts across devices, servers and applications, notifying your team by email, SMS or push the moment a metric crosses a set limit. That means catching a failing disk or overloaded server before it becomes an outage and getting time back from firefighting. Start a free trial and set your first alerts today.
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gradle-completion
Gradle tab completion for bash and zsh
Bash and Zsh completion support for Gradle. This provides fast tab completion for: Gradle tasks for the current project and sub-projects. Gradle CLI switches (e.g. --parallel). Common Gradle properties (e.g. -Dorg.gradle.debug) It also handles custom default build files, so rootProject.buildFileName = 'build.gradle.kts' is supported. See instructions for bash or for zsh, then consider optional additional configuration. Download and place the plugin and completion script into your oh-my-zsh plugins directory. Completion cache initialization happens the first time you invoke completion and usually takes a few seconds, depending on the size of your project. You can manually initialize the cache and avoid interrupting your development mojo. Tab completion checks known build scripts to see if they've been changed and refreshes the task cache if so. -
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Turbo Download Manager
A portable modern multi-threading download manager for all platforms
A modern multi thread download manager for Windows, Linux, Mac OS, Firefox, Chrome, Opera and Android devices. For bug reports visit: https://github.com/inbasic/turbo-download-manager/issues For FAQs visit: http://add0n.com/turbo-download-manager.html Turbo Download Manager is an stand-alone application without any dependencies. It should run out of the box. Just set the download location while adding the first job request. If you have a browser and would like to integrate this download, use these browser extensions: Firefox: https://addons.mozilla.org/firefox/addon/turbo-download-manager/ Opera: https://addons.opera.com/extensions/details/turbo-download-manager/ Chrome: https://chrome.google.com/webstore/detail/turbo-download-manager/kemfccojgjoilhfmcblgimbggikekjip -
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dsh-market
The plugin market inside DeepSeek Harness, browse, search, one-click
dsh-market is an integrated plugin marketplace for discovering and managing extensions inside DeepSeek Harness. It provides browsing and search across a large community catalog with categories, popularity information, screenshots, sorting, and bilingual descriptions. Plugins can be installed through a confirmation workflow with live progress and can often become active after a simple page refresh. The marketplace also manages themes that can be installed and switched immediately without restarting the host. Update, uninstall, hot-disable, and hot-enable controls provide ongoing lifecycle management for installed extensions. Backup tools can export plugin configurations to JSON and restore or synchronize them through WebDAV or private GitHub Gists. -
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kubectl tree
kubectl plugin to browse Kubernetes object hierarchies as a tree
kubectl tree is a kubectl plugin that lets you visualize Kubernetes object hierarchies as a tree by following the ownerReferences set on API objects. Instead of manually chasing which ReplicaSet owns which Pods or which higher-level controller is responsible for a given resource, it prints an ASCII tree that shows parent-child relationships at a glance. This is especially useful for understanding how complex workloads like Deployments, StatefulSets, Knative Services, or Agones Fleets fan out into lower-level resources across the cluster. The plugin is written in Go, packaged for easy installation via the krew plugin manager, and exposes flags to control namespace scoping, label selectors, and condition filters so you can narrow what’s shown. It defaults to searching namespaced objects in the same namespace as the root resource, but can also traverse cluster-wide objects when asked. -
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gradle-maven-publish-plugin
A Gradle plugin that publishes your Android and Kotlin libraries
A Gradle plugin that publishes your Android and Kotlin libraries, including sources and javadoc, to Maven Central or any other Nexus instance. Gradle plugin that creates a publish task to automatically upload all of your Java, Kotlin or Android libraries to any Maven instance. This plugin is based on Chris Banes initial implementation and has been enhanced to add Kotlin support and keep up with the latest changes. No need to know how publishing works for different project types. AGP provides an API to configure publishing, java-library too, Kotlin Multiplatform does most things automatically but not everything. This plugin configures as much as possible on its own. An unified approach for all kinds of projects. Some parts require manual configuration and for those we provide an API that works regardless of whether this is a Gradle plugin, an Android library or a Kotlin Multiplatform project. This is especially useful for projects that combine multiple of these. -
Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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Gemma 4 Browser Assistant
On-device AI agent Chrome extension powered by Transformers.js
Gemma 4 Browser Assistant is an open-source browser extension that embeds an AI assistant directly into the browsing experience, powered by on-device machine learning models. It uses Transformers.js and Gemma models to run inference locally in the browser, eliminating the need for external servers and preserving user privacy. The extension includes a side panel interface that allows users to interact with the AI while browsing, enabling tasks such as summarizing pages and answering questions. It can access and analyze page content, browsing history, and tab state to provide contextual assistance. The architecture follows modern browser extension standards, with separate components for background processing, content scripts, and UI rendering. It also supports tool-calling capabilities, allowing the AI to perform actions such as navigating tabs or highlighting elements. Overall, it demonstrates how to build fully local, agent-based assistants inside web browsers. -
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vim-flake8
Flake8 plugin for Vim
vim-flake8 is a Vim plugin that runs the current Python file through Flake8 from inside the editor. It helps Python developers catch syntax issues, style problems, and complexity warnings without leaving their coding environment. The plugin superseded earlier Vim integrations for PyFlakes and pep8 by using Flake8 as the combined analysis backend. It can report problems in Vim’s quickfix list and place visual markers where issues appear in the file. This makes it useful for developers who prefer lightweight editor workflows over full IDEs. Although it reflects an older Vim plugin ecosystem, it remains a straightforward reference for integrating Python static analysis into Vim. -
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Jquery Toast Plugin
Highly customizable jquery plugin to show toast messages
Jquery Toast Plugin is a lightweight notification library for displaying customizable toast messages in jQuery-based web applications. It supports informational, success, warning, and error-style notifications with configurable colors and presentation. Message content can be supplied as plain text, HTML, or arrays that are rendered as lists. Toasts can appear in predefined screen positions or at custom coordinates defined by the developer. The plugin includes fade and slide transitions, optional loaders, sticky notifications, and limits on how many messages can be displayed at once. Lifecycle events let applications react before or after a toast is shown or hidden. It can be installed through npm, Bower, or direct distribution files and is easy to restyle with CSS. -
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Cross platform GUI managing bookmarks and shortcuts in a portable way. Support import/export, search, encryption, hierarchical tags, USB key installation, various environments integration, OS-dependent shortcuts, plugins extensibility.
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“Scramble your social network data!” - With Scramble you can selective enforce you access control preferences for your content on social networks like Facebook or Twitter ...
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CherryPad - Browser Notepad
Your Sleek, Distraction-Free Notepad for Endless Productivity
CherryPad: Your Sleek, Distraction-Free Notepad for Endless Productivity Welcome to CherryPad 🍒, the notepad extension for your browser! CherryPad is designed to make your note-taking experience quick, convenient, and visually pleasing. With features like AutoSave, a built-in emoji panel, and hidden Easter Eggs, CherryPad offers a fun yet practical workspace. -
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MBR Cookie Consent
Enterprise-grade GDPR/CCPA compliant cookie consent with IAB TCF v2.3
MBR Cookie Consent is the most comprehensive, enterprise-grade cookie consent management plugin for WordPress - completely free. Built for publishers, e-commerce sites, and businesses that take privacy seriously. **100% Free. Forever.** All premium features included at no cost - no upsells, no restrictions, no hidden fees. **Enterprise-Grade.** Used by professional publishers, advertisers, and agencies worldwide. **Easy Setup.** Configure in 5 minutes with intelligent defaults and one-click policy generation. -
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bee-host
Firefox/Chrome/Vivaldi proxy app for an external editor
A native messaging host application for Browser's Exernal Editor extension (https://github.com/rosmanov/chrome-bee) -
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Cross browser userscript to download videos from YouTube in various formats and sizes available. Find size of videos before downloading (http://pradip.x10.mx/index.php/download-details/36/Helper) Check Readme.txt in Files section for installation instructions.
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Docs Online Viewer
Easily open documents/files of any format you found on the web
Docs Online Viewer is a Firefox add-on that allows you to easily open documents/files of any format you found on the web (PDF, DOC, DOCX, XLS, PPT, RTF, ODT, ODP, CSV etc.) using Google Docs and Zoho Viewer. This way, Docs Online Viewer eliminates the need to open online docs in an external application. Docs Online Viewer is cross-platform and it works on Mac OS X, Windows and Linux. This script reduces the need for additional plugins required to open documents such as Acrobat reader plugin, etc. This is light weight on your system compared to using third party softwares, reducing browser / system crashes and load on your system. -
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Stackpeek Shopify Theme & App Detector
See any Shopify store's theme, apps and trackers in one click
Stackpeek is a free, open-source browser extension that shows what any Shopify storefront is built on. Click its icon and a side panel names the theme -- with its version, creator and price -- the apps behind the store, grouped by the job they do, and the advertising and analytics pixels the page loads, each named rather than counted as a total. It also exports the store's public product catalogue to CSV in Shopify's own product-import format: every public product and variant, up to the first 10,000, assembled in your browser. Detection is reported honestly. Weak app matches are marked unverified rather than dropped, unknown hosts are counted so gaps stay visible, and a customized, bespoke or headless build is labelled as such instead of being guessed at. Four permissions, no account, no sign-up, and your browsing history is not collected. The full source is MIT licensed and published, so every claim here is checkable against the code. Not affiliated with Shopify Inc. -
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This is a site that I use to keep programs I make and want to share.
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Clip and Share
Clip and Share your world! Social sharing made easy.
Clip and Share your world with the greatest of ease using this extension for Google Chrome! With just a couple of clicks, you can share content to social networks of your choice without having to mess with copying and pasting links, saving and uploading photos, or copying the exact text of an interesting quote only to find that it doesn't paste properly. Clip and Share makes sharing content online ENJOYABLE and QUICK! The following networks are supported by Clip and Share: * Facebook * Twitter * Tumblr * Google+ * MySpace * Reddit * StumbleUpon * Digg * Delicious * LinkedIn Clip and Share is NOT affiliated in any way with any of the above networks. It is built on existing public frameworks using proprietary software in order to make life a little bit easier. -
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A plug-in for Firefox that exports the user's bookmarks to CSV file format. We hope to expand to other formats (e.g. XML) soon!
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Media Dock
Extract and download media from any website with ease and speed.
Media Extractor is a powerful and easy-to-use Chrome extension designed to help users quickly extract images and videos from any website. Whether you need media for reference, presentations, or personal use, this tool simplifies the process by scanning web pages and providing direct download links. The extension supports a wide range of formats and sources while maintaining a clean, user-friendly interface. It operates securely without tracking your activity and ensures smooth performance without slowing down your browsing experience. Perfect for students, content creators, and professionals, Media Extractor empowers users to access web media effortlessly. -
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Reverse Image Search Anywhere
4-engine reverse image search that works on Instagram & Pinterest
Reverse Image Search Anywhere is a free, open-source (MIT) browser extension for Chrome, Firefox, Edge and Opera. Most reverse-image tools work by handing a search engine the image's URL. That breaks the moment a site hides it. Instagram and Pinterest do, and so does anything drawn to a canvas or served as a blob: or data: URL. They also make you check one engine at a time, which is the slow half of the job. This extension fixes both halves. Right-click any image and search Google Lens, Yandex, Bing Visual and TinEye, one engine or all of them at once. It also handles clipboard paste, region capture, and a face-search-first flow for finding people. Privacy: plain searches never touch our servers. Uploads happen only when you ask for them, get a link that expires after 15 minutes, and the file is deleted automatically about a day after it arrives. The source is published here so you can check that rather than take it on trust.
