Tessil
End-to-end encrypted file transfer we can't read
Tessil launched on June 3, 2026 with 3 votes, #6,658 of 22,647 launches that month and more than 50% of that year's launches.
What it does
Tessil encrypts your files in the browser before upload, and the key lives in the share link, never on our servers, so we literally can't read what you send. Open source, EU-hosted, free, and no account needed.
End-to-end encrypted file transfer. Your browser encrypts before upload - we never see your files or the key.
End-to-end encrypted in your browser. The key never reaches our server. Tessil is an end-to-end encrypted file transfer service. Files are scrambled in your browser before they leave your device. The decryption key lives in the URL fragment of the share link, the part after # that browsers don't send to servers. We never see your files, your filenames, or your keys. You don't have to take that on faith. Verify it yourself walks through four checks you can run against this site in about two minutes, using the developer tools already in your browser. Anonymous transfers expire in hours; signed-in transfers can run longer and live on your dashboard. Password protection adds a second factor…from tessil.app
Does a similar job
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Send Files Encrypted2023 · sendfilesencrypted.com · ▲68Send encrypted files in your browser and share them securely
Secure File Sharing2024 · rstream.io · ▲139Share files from your terminal with end-to-end encryption
Send/Share Files by CouchdropOct 2025 · couchdrop.io · ▲135Send encrypted file links instead of email attachments
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