Create Secret Link
Security Architecture
Every design decision serves one purpose: make sure secrets are readable exactly once, then gone.
Every secret is encrypted with its own unique key using AES-256-GCM before being stored. Decryption keys never touch our servers — a defense-in-depth measure that limits exposure.
After a single view, the secret is permanently purged from all storage. No copies, no recovery, no trace.
The decryption key lives in the URL fragment (#) — a part browsers never send to servers. Even we cannot read your secrets.
Click-to-reveal gate prevents Slack, Teams, and Discord bots from consuming your secret before the recipient sees it.
How It Works
Share sensitive information without leaving a trail in your email, chat logs, or ticketing systems.
Enter any sensitive text — passwords, API keys, credentials, private notes. Set an expiration and optional passphrase.
Get a unique, one-time URL. Send it over any channel: email, Slack, text. The link itself reveals nothing about the content.
Once the recipient opens the link, the data is permanently destroyed. The link dies with it. No one — including us — can retrieve it.
Use Cases
Sensitive data moves through every organization. Secure Share keeps it off the record and out of the wrong hands.
Distribute staging environment secrets, third-party API tokens, and database connection strings to your engineering team without pasting them into Slack channels that live forever.
When a new contractor needs VPN credentials or a freelancer needs CMS access, send a one-time link instead of an email that sits in their inbox indefinitely.
Hand over production credentials, signing keys, or admin passwords to a client at project close — knowing the link self-destructs after they read it once.
Share audit credentials, compliance tokens, or sensitive report access with auditors over a link that proves zero data persistence — no copies, no forwarding, no trail.
Zero-Knowledge Architecture
We can't read your secrets. No one can. The decryption key never touches our servers — it lives entirely in the URL fragment, which browsers never transmit.
Your message is encrypted in your browser using AES-256-GCM before it reaches our server. The decryption key lives in the URL fragment (#) which browsers never send to servers. We literally cannot read your secrets.
No. The server only stores encrypted ciphertext. The decryption key is embedded in the link fragment and never transmitted to the server. Even if our database were compromised, your secrets remain private.
Unread messages automatically expire based on your selected TTL (30 minutes to 7 days) and are permanently deleted from our servers.
Yes! You can add an optional passphrase that the recipient must enter before decryption. The passphrase derives the encryption key via PBKDF2 with 600,000 iterations, adding a strong second layer of protection.
BytesBit Secure Share is completely free with no sign-up required. Core features including encryption, passphrase protection, and file attachments are available at no cost.
the right way.
Free for everyone. No sign-up required.