Zero-knowledge · Log in everywhere · Free sync

Your private Markdown notes — everywhere you log in.

Scrinium is a Typora-style inline Markdown editor with true zero-knowledge encryption and free, unlimited sync. Log in on any device — your notes are private everywhere, and only you can ever read them.

Open a browser, log in, write — synced and encrypted on every device.

Encrypted at rest, in transit, and on the server. The server stores ciphertext and an SRP verifier, nothing more.

Scrinium — Meeting notes

Why Scrinium

You shouldn't have to choose between a great editor and real privacy.

Most notes apps give you one or the other — great editing or true privacy, never both. Scrinium is private by default and built to be the notes app you'll actually enjoy using.

Zero-knowledgeFast, inline MarkdownNo lock-in
Built for the way you think

A real editor, with real privacy.

Six reasons Scrinium is the notes app you'll actually keep using.

How it stays private

The server is kept in the dark — by design.

Your password never leaves this device. Every note is sealed with a key only you can derive.

Key hierarchy
Tap a link to see what it does
Password
In your head · Argon2id

Your only secret. It never leaves this device, so the server can never guess or read it.

Step 1 of 5
The server sees
Everything it holds is ciphertext
3
  • Encrypted note blobs
  • An SRP login verifier
  • Your email (for recovery)

It can never open, read, or search any of it.

The server never sees
That's the whole point
0
  • Passwords or keys
  • Note text, titles, or tags
  • Search queries

And that's why it's a zero-knowledge note app.

Honest pricing

Private notes. Free forever.

Unlimited notes and sync are free — paid plans fund the features that actually cost money, not limits.

Free
$0forever
  • Unlimited notes & folders
  • Encrypted cloud sync
  • Unlimited devices
  • Markdown WYSIWYG editor
  • Client-side search
Pro
$5/mo
  • Everything in Free
  • Image attachment
  • Version history
  • Burner notes, Dead Man’s Switch and more to come
Supporter
$10/mo
  • Everything in Pro
  • Supporter badge
  • Help fund the project

Have a question?

Answers on privacy, pricing, and taking your notes with you.

Read the FAQ