Best Browser Extensions in 2026

Reduce eye strain in your browser with this extension that provides a dark theme for browsing.

Key Dark Reader features:

Eye Strain Reduction Customizable Settings Improved Battery Life Open Source

Open Source

ZeroTwo is a premium multi-provider AI platform which combines the tools models and features of Claude, Gemini, Grok, Openai and more into one. Canvas, Deep Research, MCP, Connectors, Agents, Projects and even Apps are all available in one place!

Key ZeroTwo AI features:

Versatility Accessibility Natural Language Understanding Tools

Try for free freemium $19.99 / Monthly (Pro Account) Sponsored

Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.

Key OneTab features:

Memory Efficiency Improved Organization Easy Restoration Shareable Tab Groups

Open Source

Greasemonkey compatible script manager.

Key Tampermonkey features:

User-Friendly Interface Cross-Browser Support Sync Capabilities Wide Range of Scripts

A better way to work in the browser.

Key Workona features:

Tab and Workspace Management Integration with Cloud Apps Cross-Device Sync Built-in Search

All your articles, photos, video & content from web & apps in one place.

Key Raindrop.io features:

User-Friendly Interface Cross-Platform Availability Rich Bookmark Management Collaborative Features

Open Source freemium

Better Than Bookmarks.

Key Toby features:

Enhanced Organization Cloud Sync Collaboration Reduce Tab Clutter

Violentmonkey is a userscript manager to support running userscripts in web pages.

Key Violentmonkey features:

Free and Open Source Active Development Cross-Browser Support User Script Manager

Open Source

Manage Your Browser Sessions.

Key Session Buddy features:

Session Management Crash Recovery Bookmark Organization Lightweight and Fast

Stylus is a userstyles editor and manager based on the source code of Stylish version 1.5.2.

Key Stylus - User Styles Manager features:

Customization Ease of Use Open Source CSS Preprocessor Support

Open Source

EXPRESSIVE, DYNAMIC, ROBUST CSS.

Key Stylus features:

Simplified Syntax Extensive Feature Set Preprocessor Enhancements JavaScript Interoperability

Open Source

Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me.

Key Stylebot features:

User-Friendly Interface Customization Real-Time Changes Community-Driven

Open Source

A Modern-day bookmark manager. A place for your favorites. A news feed (RSS) reader. A browser startpage. A portal for your team.

Key start.me features:

Customization Ease of Use Integrations Collaboration

freemium $20 / Annually

ChatGPT is a powerful, open-source language model.

Key ChatGPT features:

Versatility Accessibility Natural Language Understanding Time Efficiency