Morning commute · Phone
Capture ideas instantly
No signal? No problem. Write offline on the train. Your thoughts sync when you are back online.
Offline-first Auto-sync
Free Public Beta
Write anywhere.
Stay in flow.
A beautiful markdown editor that works offline, syncs across all your devices, and keeps your words encrypted. From first thought to final presentation — one document, infinite possibilities.
Start Writing
End-to-end encrypted
Works offline
No account required
Ideas should not wait for Wi-Fi
Office, train, cafe, red-eye flight. Alkalye stays available — offline, on any device, always yours.
A day in the life
Follow a document from first spark to final delivery. One source, multiple contexts, zero friction.
At your desk · Laptop
Deep work, uninterrupted
Beautiful typography, zero chrome. Just you and your words. On supported browsers, open a local Markdown folder to write alongside Claude Code or OpenCode.
Local folders AI collaboration
Team meeting · Any device
Share and collaborate
Send a link. Set permissions: public, read-only, or full editing. See live cursors as your team writes together.
Real-time collaboration Granular permissions
Presentation time · Tablet + Phone
From draft to delivery
Switch to slideshow mode instantly. Use your phone as a teleprompter. Same document, new context.
Presentation mode Teleprompter
Your AI pair writer, without lock-in
In a browser with folder access, open a local Markdown folder in Alkalye. Claude Code or OpenCode can edit the same files for blog posts, talks, and technical writing.
Keep your Markdown in your own folder. Let your agent edit the files, then reopen them in Alkalye to keep writing.
1
Open a folder on your disk
In browsers with folder access, edit Markdown files where they already live: your notes vault, repo, or Dropbox.
2
Collaborate with Claude Code / OpenCode
Point your AI agent at the same folder for drafting, rewrites, structure, and critique.
3
Keep writing in Alkalye
Reopen the folder and keep writing in the same Markdown files.
Everything you need
Powerful features that stay out of your way until you need them.
Time Machine
See every change. Scrub through complete document history and recover exactly what you need.
Custom Themes
Make it yours. Change how preview and slideshow look with custom themes.
End-to-end Encrypted
Your documents are encrypted before they leave your device. Not even we can read your words.
No Lock-in
Standard markdown with frontmatter. Export anytime. Self-host if you want. Your data stays yours.
Works Everywhere
PWA that installs on any device. iOS, Android, macOS, Windows, Linux - one app, all platforms.
Open Source
MIT licensed. Inspect the code, host it yourself, make it yours. Community driven development.
Your words, everywhere
Join the free public beta. No email, no credit card, no account required. Self-host anytime. Your data stays encrypted and yours.
Start Writing