Security & Privacy tools
Checksums, strong passwords, QR codes and metadata scrubbing. Nothing here phones home, which is rather the point for this category.
18 tools · free · nothing uploaded
Hash GeneratorSHA-256, SHA-1, SHA-512, MD5 and CRC32 from any textHMAC GeneratorSign a message with a secret key using HMAC-SHAPassword GeneratorStrong random passwords from your browser's crypto sourcePassword Strength CheckerSee how long a password would take to crack — offlineRandom String GeneratorRandom tokens, keys and IDs in the alphabet you chooseQR Code GeneratorMake a QR code for a link, Wi-Fi network, contact or textEncrypt TextAES-256-GCM with a password, entirely in this tabDecrypt TextOpen text encrypted here, with the password it was sealed withEncrypt FilePassword-protect any file with AES-256-GCM before you send itDecrypt FileOpen a .enc file made here and check it hasn't been alteredTOTP Code GeneratorTurn a 2FA seed into the rotating six-digit code, offlineSplit a Secret Into SharesShamir's scheme — any M of N shares rebuild it, fewer reveal nothingCombine Secret SharesRebuild a secret from enough of its sharesRSA Key Pair GeneratorGenerate a PEM key pair in your browser, never on a serverSign & Verify TextProve a message came from your key, or check that someone else's didLog AnonymizerStrip IPs, emails, cards and tokens out of a log before you share itHide Text in an ImageWrite a message into a picture's low bits, optionally encryptedReveal Hidden TextRead a message hidden in a picture's low bits