15 / Tools & discovery
PrivateBin — Encrypted, expiring sharing
PrivateBin shares text and code through links that are encrypted in your browser. The server stores only ciphertext, and every paste can expire or disappear after it is read.
- Access
- Team sign-in required
- Runs on
- PrivateBin 2.0
- Live status
- Checking
Who it is for
- Team members sharing logs or snippets
- Anyone sending a note that should not live forever
- People who want sharing without trusting the server with the content
What you can do
Zero-knowledge encryption
Content is encrypted in the browser before upload; the key is in the link fragment and never reaches the server.
Expiration
Choose how long a paste lives, from minutes to longer periods.
Burn after reading
Make a paste delete itself after the first view.
Code-friendly
Syntax highlighting and Markdown display for snippets.
Getting started
- 01
Open paste.math7.com and pass the site access check.
- 02
Paste text, choose an expiration, and optionally enable burn after reading.
- 03
Send the full link, including everything after #, to the recipient.
Access
PrivateBin on Math7 is behind a site access gate for team members.
Privacy and data
The server stores only encrypted data and cannot read it. Anyone with the full link can decrypt it, so share links carefully.
Common questions
What happens if I lose the link?
The content cannot be recovered. The decryption key exists only in the link.
Why is the page not in search engines?
PrivateBin pages are marked noindex to keep shared links out of search results.