Write better.
Learn permanently.
A system-wide AI writing co-pilot that fixes your grammar, adjusts your tone, and turns every correction into a language lesson — all without your text ever leaving your machine.
Also available for Windows & Linux
Everything you need to write confidently
From quick fixes to deep learning, Ravan covers the full writing improvement loop.
System-Wide Corrections
Select text anywhere, hit a shortcut, get instant fixes. Works in Slack, email, browser — everywhere.
Distraction-Free Editor
A full writing environment with real-time grammar checking, inline suggestions, and focus mode.
Learn From Mistakes
Every correction becomes a flashcard. Built-in spaced repetition turns fixes into permanent knowledge.
Your Text, Your Machine
Run AI locally, bring your own API key, or use managed cloud. No text leaves your machine unless you choose.
How it works
Three steps to better writing — every time.
Select
Highlight text in any app — Slack, browser, email, anywhere.
Fix
Hit your shortcut. Ravan corrects grammar and adjusts tone instantly.
Learn
Save corrections as flashcards. Review with spaced repetition.
Simple, honest pricing
The full app is free and open source. Pay only for cloud convenience.
Free
Full app with your own AI keys or local models.
Download Free- Quick Mode — system-wide corrections
- Editor Mode with grammar checking
- Local AI models (Ollama)
- Bring Your Own API Key
- Flashcards & spaced repetition
- Anki integration
- Custom presets
- Dark & light theme
Pro
Managed AI and cloud sync for seamless workflow.
Early adopters get Pro features free
- Everything in Free
- Managed AI — no keys needed
- Cloud sync across devices
- Cross-device flashcards
- Priority support
Ready to write better?
Download Ravan for your platform and start correcting text in seconds.
View source on GitHub