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Privacy-friendly Bring-Your-Own-Key AI writing assistant. Keys stay on your device. Grammarly and others cost over $140 a year and analyze every keystroke on their servers. Plain Write is the rebellious alternative: A professional AI writing assistant with a strict "Bring Your Own Key" (BYOK) approach. Pay just once for the app license, plug in your own OpenAI or Anthropic key, and write cheaper, better, and 100% privately. PRIVACY FIRST (BYOK) Your API key and texts never leave your browser unencrypted. We have no servers reading your data. All requests go directly from your local machine to the AI provider. Your key is stored exclusively locally in your browser (chrome.storage.local). FEATURES - Fix Grammar: Perfect spelling and grammar with one click. - Rewrite: Adjust the tone (Professional, Casual, Concise). - Custom Prompts: Tell the AI exactly what to do with your text. - Smart Pause: Disable the assistant temporarily or permanently on specific sites (e.g., banking). Works Everywhere: Works seamlessly on Gmail, LinkedIn, X, Notion, and almost any text field on the web. LIFETIME DEAL No more subscriptions. Get your lifetime license at plain-write.vercel.app, enter your key, and write brilliantly forever.
Aug 11, 2026
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