Write and Draw without limits
Offline-first notes and canvas. Share with anyone. Sync when you want. The freedom of a whiteboard with the power of a text editor.
Everything you need
Offline-First
Works entirely without internet. Your notes and drawings are saved locally in your browser's database and are always available.
Shareable Links
Generate a read-only link and share your work with friends instantly. They can view your notes and canvases without an account.
Optional Sync
Sign in only when you want to sync across devices. You own your data, and we only store it when you explicitly choose to.
How It Works
Create
Start a new note or launch an infinite canvas. Use powerful tools to capture your ideas.
Store
Everything is instantly saved to your local browser database. No internet? No problem.
Sync
Optional cloud sync across all your devices. Share read-only links with a single click.
Built for privacy and freedom
Cellulose is designed with a simple philosophy: your data belongs to you. Most apps hold your data hostage to a subscription. We don't. Everything works offline by default.
Read our PhilosophyPrivacy-First
Your notes stay on your device unless you choose to share them.
Open Source
Fully transparent, community-driven development.
No Lock-In
Export your data anytime as standard JSON.
Ready to start writing?
Create notes and sketches that work anywhere, anytime.