Update: Accountless Multi-Device Sync & Zero-Knowledge Note Sharing

Hey everyone! 👋

It’s been a month since the initial launch of Justwrite, and based on your feedback, I’ve just released a major update focused on multi-device sync, privacy, and offline capabilities.

Here is what’s new:

1. "Your Book" — Accountless Multi-Device Sync

You can now sync your notes across your laptop, phone, and desktop using a simple 4-word code. No account creation, email sign-in, or passwords required.

2. End-to-End Encryption (E2EE)

All notes are encrypted directly inside your browser using AES-256 before syncing. The server only receives encrypted data and can never read your notes.

A detailed blog of how it works

3. Zero-Knowledge Note Sharing

You can now share individual notes using secret key links (`#key=`). Because web browsers do not send URL hash fragments to servers, your secret key stays entirely on your device.

Thank you all for the support on the launch! Try out the new features at Justwrite and let me know your thoughts or feedback below.