End-to-end encrypted transfer
Send files the server
can't read.
Flinger encrypts in your browser before upload. The decryption key stays in the link — our infrastructure never sees it.
0
Shares created
0
Files encrypted
0 B
Data encrypted
0
Downloads served
Live
Choose files
Drag or pick up to 20 files
Encrypted locally
AES-256-GCM in-browser
Share the link
Key stays in the fragment
Encrypted before it leaves your device
AES-256-GCM encryption runs entirely in your browser. Files are split into chunks, encrypted with a unique key, and uploaded as opaque blobs. The key never touches our servers.
Cipher
AES-256-GCM
Key location
URL fragment
Server access
None
Zero
Plaintext on the server
30 days
Max link lifetime
500 MB
Max file size
No account
Required to share
Key stays in the link
The decryption key lives in the URL fragment — the part browsers never send to servers. Whoever has the link can decrypt. No one else can.
Expires on your terms
Set expiry from five minutes to thirty days. Add download limits or leave it unlimited. Shares auto-delete when they expire.
Anonymous and protected
No sign-up needed. Rate limits and storage caps prevent abuse without requiring identity.
What the server knows
Encrypted blob sizes, download counts, expiry timestamps, and hashed request fingerprints. That's it. No filenames, no contents, no keys. We enforce policy on metadata — you keep exclusive access to the actual files.
Ready to send something?
No account, no install, no data we can read. Pick your files and get a link.