Proofreader

A proofreading assistant powered by AI

Proofreader lives in your browser's side panel — always one click away. Paste any text, pick a style, and get clean, corrected copy back in seconds. No app switching, no chat windows, no middleman. 🔑 YOUR AI, YOUR KEY Connect directly to the AI provider you already use. Proofreader works with Google Gemini, OpenAI, Anthropic Claude, and xAI Grok. Bring your own API key — your text goes straight to the model and nowhere else. 🎨 STYLES Four built-in styles (Grammar Only, Casual, Neutral, Formal) or create your own with custom prompts, icons, and colours. Each style has its own thinking level and regional spelling variant. 🕵️ ANTI-AI DETECTION Optionally humanise output to reduce AI detection flags. Subtle phrasing swaps, softened assertions, and light error injection make results read more like a person wrote them — without changing the meaning. 📋 HISTORY Optionally save a log of every session. Search, re-use, or delete entries at any time. Everything is stored locally on your machine — nothing is sent anywhere. 🥷 INCOGNITO MODE Need something off the record? Incognito mode prevents any session from being saved to your local history. ⚡ AUTOMATION Auto-proofread on paste, or trigger after a typing pause. Enable the right-click context menu to proofread selected text on any page without opening the panel. Or use the keyboard shortcut to toggle the panel without touching your mouse. 💾 BACKUP & RESTORE Export all your settings, styles, and history to a single file. Import it on another browser or device and pick up exactly where you left off. 🔒 PRIVACY No accounts. No servers. No tracking. Your API keys and your history stay on your machine. This is fully open source — check the code if you want to verify. 🚀 GETTING STARTED - Get a free API key from Gemini, OpenAI, Anthropic, or xAI - Click the Proofreader icon in your toolbar - Paste your key in Settings — done Proofreader is free and open source. A Buy Me a Coffee link is in the panel if it's saved you some time, but it doesn't unlock anything — the app is fully functional with your own key.