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Self-hosted Browser Extensions

A curated collection of the best self-hosted add-ons that extend browser functionality for productivity or utility..

LanguageTool

AI-powered grammar checker for 30+ languages

  • Stars

    15,195

  • Last commit

    2 days ago

  • License

    LGPL-2.1
Check grammar, punctuation, and spelling errors instantly with AI-powered technology. Supports 30+ languages with browser extensions and desktop apps.

Open Source Alternative to:

Grammarly

Requestly

Intercept, modify, and debug HTTP(S) requests effortlessly

  • Stars

    6,755

  • Last commit

    14 hours ago

  • License

    AGPL-3.0
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

Open Source Alternative to:

Postman
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