Public preview - you can create an account and vaults, but client access is currently limited.

Your bookmarks
are nobody's
business

Encrypted on your device. Synced through the cloud. Readable only by you. Not us, not your provider, not anyone.

Get started for freeNo password. Just your email.
Client-side encryption
Nothing leaves your device unencrypted
Zero-knowledge
Server never sees your data
Cross-browser
Chrome, Firefox, Safari, any

How it works

Simple by
design

Three steps. No complicated setup. No passwords to manage. Just your email and a recovery phrase.

01

Enter your email

We send you a magic link. Click it, you're in. No password to create, remember, or get phished.

02

Create a vault

You receive a 12-word recovery phrase - like a crypto wallet. This is the only key to your bookmarks. We never see it.

03

Bookmark freely

Add bookmarks from any device or browser. Everything encrypts on your device and syncs automatically.

The problem

Browser bookmarks
are a liability

Your bookmarks reveal what you read, research, and care about. They're stored in systems you don't control, synced through services that can read them, and locked into a single browser.

Problem 01

Not in your control

Browser sync services may encrypt in transit, but you don't hold the keys. The provider can access your bookmarks at any time.

Problem 02

Not portable

Safari doesn't sync to Chrome. Chrome doesn't sync to Firefox. Your bookmarks are trapped in one ecosystem.

Problem 03

Not private

Your browsing interests become someone else's data. You have no say in how they're stored, analyzed, or monetized.

Architecture

The server is blind

Encryption happens on your device using AES-256-GCM before anything leaves it. The server is a dumb blob store.

Even in a database breach, an attacker gets meaningless ciphertext. Only your 12-word recovery phrase can unlock it.

You control
Bookmark titles & URLs
Notes & tags
Folder organization
Recovery phrase
Server sees
Your email
Blob count
Timestamps
Nothing else

Use case

Private browsing, perfected

Using Tor, Brave, or incognito mode? Your bookmarks disappear when you close the session. That's the point - but it means starting from scratch every time.

Whispermarks fills that gap. Open the app, unlock your vault, click a bookmark, browse privately, close everything. Your bookmarks persist. Your browser history doesn't.

Transparency

Why we ask for your email

Your email is your identity. It does two things: sign-in and routing encrypted blobs. It's never connected to your bookmark content - the server can't decrypt it.

Authentication

Magic link. No password to create or leak.

Routing

Maps your email to your encrypted blobs.

Cryptographically separated

Email and bookmark content live in different encryption domains. Knowing your email reveals nothing about your bookmarks. We will never sell or share your email.

Encryption
AES-256-GCM
Random IV per record
Key derivation
PBKDF2-SHA-256
250,000 iterations
Recovery
12-word phrase
Only you hold the key

Ready to take control?

Free. No credit card. No account form.

Get started