Every research tool, across every device.
AI chat, notes, file storage, OCR, and knowledge search — synced across web and desktop. Pick up the same paper, the same notes, the same chat on any device.
Click any feature to learn more.
Desktop
Desktop
Every research tool, across every device.
AI chat, notes, file storage, OCR, and knowledge search — synced across web and desktop. Pick up the same paper, the same notes, the same chat on any device.
Click any feature to learn more.
Desktop
Desktop
Version 0.0.7
Verify you're human
Complete the verification below to access downloads
Verify above to access download links
The Oyren platform
Free to use. More with a free account.
Everything below is free. Sign in (also free) to unlock cloud backup, cross-device sync, and OCR for scanned PDFs.
Without an account
Open source
Audit the code, fork it, or self-host. Built in the open on GitHub.
Offline-capable
Run local LLMs or BYOK. Read and annotate without a connection.
Web + desktop
Use Oyren from the browser or install the native desktop client.
With a free account
Cloud backup
Optional: back up your library so it follows you across devices.
Cross-device sync
Open the same papers and notes anywhere you sign in.
OCR for scans
Scanned and image-only PDFs become searchable and chat-ready.
Your papers, your models, your rules.
A learning environment for PDFs, notes, and AI chat — across web and desktop. Open source, local-first by default, with optional cloud backup when you sign in. Works offline with local LLMs or connect any AI provider. Your data stays yours.
WHY OYRENAI
Always free
Core features free forever. No subscriptions, no paywalls.
Completely private
All data stays on your device. No cloud, no tracking.
Bring your API key
Use OpenAI, Anthropic, Google, or run models locally.
Your API keys. Your control. Zero lock-in.
No subscriptions. No middleman. Pay providers directly and switch anytime. File storage and OCR stay on the Oyren platform — your AI keys stay with you.
Openrouter
Access 100+ models from multiple providers through a single unified API
Gemini
Google's generous free tier makes AI accessible without upfront costs
DeepSeek
Powerful reasoning models at a fraction of the cost of other providers
Local LLMs
Run models offline with Ollama for complete privacy and zero API costs
Plus many more coming soon
We keep expanding the list of supported models as soon as new breakthroughs land.
Feed AI with accurate formulas, figures and tables.
You can't copy formulas from a PDF — they come out broken. We rebuild them as clean LaTeX so the AI reads exactly what the author wrote.
PDF Input
Your PDF is scanned page by page — text, formulas, tables, and images.
OCR to LaTeX
Formulas come back as real LaTeX, not broken symbols. Tables keep their rows and columns. Figures stay attached.
AI Chat
Chat with your paper using clean, structured text — not the mess you get from copy-paste. Better input, better answers.