Free privacy tools
Lock what matters
Encrypt files, seal secrets and pressure-test your passwords — right in your browser.
- Nothing uploads
- Works offline
- No account
- 36 languages
Encrypt a file in your browserAES-256-GCM with every parameter stated and the byte layout documented.Works offlineEncrypt private textWrite or paste a note, then encrypt it in your browser.Works offlineSeal a fileEncrypt with a one-time random key, so there is no passphrase to crack. Share the file and the key separately.Works offlinePassword protect a PDFAdd AES-256 PDF encryption in your browser. No upload.Works offlineRemove a PDF passwordUnlock with the password you already know — no guessing.Works offlinePassphrase generatorDiceware passphrases from the EFF large wordlist, drawn by your browser or by your own dice.Works offlineHas this password leaked?Check a password against known breaches. Only 5 hash characters leave your browser, never the password.Lookup needs the networkHow long would your PIN survive?How long a PIN survives three kinds of attack. Every assumption editable.Works offlinePassword setup health checkAudit how your password setup is built, never a password itself, and get fixes ranked by impact.Works offlineOpen a sealed fileSee the name, size and type, with a risky-file warning, before anything is saved.Works offline