15 free tools, 100% in your browser
Hash, verify, recover, locally
Hash generator (MD5, SHA-256, bcrypt…), HMAC, identifier, integrity checker and recovery by dictionary or brute force. Everything runs in your browser.
All kortex hash tools
Free, no sign-up, and your data never leaves your device.
Hash generator
Compute the MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE2/3… hash of a text or file. Salt, hex or Base64. Everything is local, nothing is uploaded.MD5 generator
Compute the MD5 hash (128 bits) of a text or file in your browser. Useful as a checksum; MD5 is broken for security purposes.SHA-256 generator
Compute the SHA-256 hash (256 bits) of a text or file in your browser. The robust standard for checking integrity. Nothing is uploaded.SHA-512 generator
Compute the SHA-512 hash (512 bits) of a text or file in your browser. The 512-bit variant of SHA-2. Everything is local, nothing is uploaded.HMAC
Compute an HMAC (keyed hash, RFC 2104): HMAC-SHA256, SHA-512, SHA-1, MD5… Message and key as text or hex. Everything is local.Hash identifier
Paste a hash: identify the possible algorithms from its length and pattern (MD5, SHA-256, bcrypt, Argon2…). 100% local analysis.Hash comparison
Compare two hashes at a glance (case and separators ignored), in constant time, with identification of the likely algorithm. Local.bcrypt generator
Generate a bcrypt hash for your passwords, with adjustable cost and automatic salt. Verifier included. 100% local, nothing is uploaded.Argon2 generator
Generate an Argon2id hash (adjustable memory, passes and parallelism) for your passwords. Verifier included. Everything is local.scrypt generator
Generate a memory-hard scrypt hash (adjustable N, r, p) for your passwords. Verifier included. Everything is local.PBKDF2 generator
Generate a PBKDF2-HMAC-SHA256 hash (adjustable iterations) for your passwords. Verifier included. 100% local, nothing is uploaded.File integrity checker
Drop a file, paste its reference hash (SHA-256, MD5…): the tool confirms whether the file is intact. Algorithm detected, 100% local.Checksum file
Generate a SHA256SUMS file for several files, or check files against a reference list. Compatible with sha256sum. Everything is local.Dictionary recovery
Test a word list (yours or the one provided) against MD5, SHA-1, SHA-256… hashes, with simple rules. Multi-threaded, 100% local.Brute-force recovery
Test every combination of a character set against an MD5/SHA-1/SHA-256 hash, with time estimation and GPU acceleration. 100% local.