Proofreader

Tracking since Apr 7, 2026.

Changelog

• Apr 19, 2026
  description

  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.
  
  ── 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.
  
  ── 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 ──
  1. Get a free API key from Gemini, OpenAI, Anthropic, or xAI
  2. Click the Proofreader icon in your toolbar
  3. 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.

  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.

Permissions & access

Permissions

sidePanelcontextMenusactiveTabstorageclipboardWrite

Host access

None declared

Screenshots