Secure & Private
One-Time File Sharing
Encrypt files and text in your browser. No accounts, no tracking.
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Share a File
Drag & drop files here (max 10)
or click to browse • 500 MB total limit
Expires:
Share Text Secret
0 / 1000 characters
Expires:
Secure Vault
Password-protected, multi-access sharing
Drag & drop files here (max 10)
or click to browse • 500 MB total limit
Share password separately from the link
Expires:
How sdbx Works
Client-side Encryption
Your file is encrypted in your browser before upload using AES-256-GCM
Zero-Knowledge
The encryption key stays in the URL fragment and never reaches our servers
No Tracking
No accounts, no email, no cookies, no analytics
One-Time Download
Each file can only be downloaded once, then it's automatically deleted
This Service Is For You If...
- ✓ You want to share a file or secret and be certain it disappears forever after viewing
- ✓ You don't trust services that store your files on their servers indefinitely
- ✓ You need to securely share passwords, API keys, or confidential documents without registration
- ✓ You value privacy and full control over your data — no logs, no tracking
- ✓ You need a simple "view once → gone" approach, with no history or repeated access