Encrypt in your browser. The server only ever holds ciphertext — no accounts, no IP logs, no tracking. Everything self-destructs.
available modules
AES-256-GCM rooms. No accounts, no IP logging, room names hashed. Messages expire.
open zkZero-knowledge file sharing up to 300 MB. Key stays in the link. Self-deletes in 24h.
open burnZero-knowledge text & code. Optional burn-after-reading. Decrypted only in your browser.
open 24hAnonymous inbox that self-destructs. Tracking stripped. Optional in-browser PGP.
open shaHash a file locally (SHA-256/512/1) and compare. Offline — it cannot upload.
open zkPublic word-filtered boards plus zero-knowledge encrypted boards. No accounts, no IP logs; handles & timestamps encrypted.
open aesEncrypt text or files with a passphrase, right in your browser. No server at all. Strong passphrase generator and a deniable decoy mode built in.
open pgpProve authorship with PGP. Sign a message so anyone with your public key can confirm it's yours and unaltered. Keys never leave the page.
open rawStrip invisible zero-width characters, bidi controls and look-alike letters used to fingerprint leaked text. Offline — nothing uploaded.
open mitmDerive a short safety number from two public keys and compare it out-of-band to catch a man-in-the-middle. Offline — nothing uploaded.
opensecurity posture