BYOK Browser Extensions

Browser extensions with Bring-Your-Own-Key support bring AI directly into your browsing workflow — summarizing pages, writing emails, and enhancing web apps — all powered by your own API keys. No separate subscriptions, no data routed through third-party servers, just AI assistance wherever you browse.

7 tools, newest first

  • Nanobrowser

    Free, open source · Chrome extension · Open source

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    Open-source Chrome extension AI agent that browses for you. Keys stay in your browser and go only to their provider.

    Works with:AnthropicOpenAIGoogle GeminiOpenRouter+4 more

  • AI Assist

    $3/month, 14-day free trial · macOS, Linux, Chrome extension

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    BYOK meeting notes for Google Meet and Zoom Web that route transcription through your own OpenAI/Whisper key and summaries through your own Anthropic/Claude key.

    Works with:OpenAIAnthropic

  • SurfMind

    Chrome extension, Firefox extension, macOS

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    Free AI browser extension with page-aware context that lets you use your own API keys or OpenAI-compatible endpoints.

    Works with:OpenAIAnthropicGoogle GeminiDeepSeek+3 more

  • Developer-first BYOK orchestration platform for building and deploying autonomous AI agents with full control over data and API costs.

    Works with:OpenAIAnthropicGoogle GeminiMistral+1 more

  • orNot AI

    Free · Web

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    Suite of 12 free AI-powered scanner tools that run entirely in your browser using your own Groq API key. Zero servers, zero accounts, zero cost.

    Works with:Groq

  • AiAssistWorks

    Free Lite plan; paid from $3/month · Web

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    AI add-on for Google Sheets, Docs, and Slides that lets you use 100+ AI models with your own API keys. Fill thousands of rows, generate slides, and automate tasks without AI formulas.

    Works with:OpenAIAnthropicGoogle GeminiOpenRouter+1 more

  • Prompt Selected

    Free · Chrome extension

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    Free browser extension that allows users to run custom ChatGPT prompts on any selected text, enhancing tasks like grammar correction, translation, summarization, and explanation.

    Works with:OpenAI