June 23, 2025

Share Freely, Stay Private: Quill's Zero-Knowledge Published Notes

Sharing meeting notes shouldn’t mean giving up your privacy. With Quill you can publish a note for the world while keeping the contents locked away from everyone but you and the people you invite.

What makes a Quill link special?

1. End-to-End Encryption The note is encrypted on your device before it ever touches our servers. We rely on proven AES-256 cryptography—no proprietary tricks.

2. A Private Key in the URL Every note gets a one-time symmetric key. We tuck that key into a hash param on the share link. Hash params are not sent to the server when the link is opened - if you have the URL you have the key; if you don’t, the note is unreadable.

3. Zero-Knowledge Servers Quill stores only encrypted text—random noise to us. We can’t see, mine, or leak what we can’t read.

How it works (the short version)

You → Encrypt note → Upload encrypted note → Share URL (contains decryption key)
Friend → Click URL → Browser decrypts locally → Voilà 🎉

That’s it. The heavy cryptography happens silently in the background; all you ever do is click Publish.

flowchart TB subgraph "Author's Computer" A1[Write Note] A2[Generate one-time key 🔑] A3[Encrypt note with key] A1 --> A2 --> A3 A2 --> U1[Share Link] end subgraph "Quill Cloud" QC[Encrypted, unreadable data] end subgraph "Recipient's Browser" R1[Open share link] R4[Decrypt with key] R4 --> R5[Read Note 🎉] end A3 -->|Upload Encrypted Data| QC U1 --> R1 R1 -- GET --> QC R1 -->|Extract key| R4 QC -->|Encrypted data| R4

Why you’ll love it

• Instant sharing — One link loads in any browser, no login required. • Complete control — Keep the key private, or revoke it by unpublishing at any time. • Peace of mind — Compliance-friendly and future-proof; your words never sit unencrypted on someone else’s server.

Built for everyone

Whether you’re a founder sharing investor updates, a student sending study guides, or a teammate distributing meeting recaps—Quill lets you do it without sacrificing confidentiality.

Ready to give it a try? Publish a note in Quill and watch the magic happen. ✨