JPKCom DB

Hash Generator

What the Hash Generator does: MD5, SHA-1, SHA-2, SHA-3, and RIPEMD-160 hashes (incl. HMAC) for text and files — right in your browser, no upload.

Hashes for text and files — all in the browser

The Hash Generator computes cryptographic hashes (checksums) for arbitrary text and for whole files. You type a message or drop a file into the tool, pick an algorithm — and get the hash back as a hexadecimal string you can copy straight away.

A hash is a digital fingerprint: the same input always produces the same hash, and changing a single character produces a completely different value. That's exactly why hashes are ideal for verifying the integrity of downloads, backups, or documents, comparing values, or producing an HMAC for keyed message authentication.

The tool is built for everyone who works with data integrity and checksums: developers who need to double-check a file checksum quickly; admins matching a downloaded build against its published SHA-256 value; and anyone who needs an HMAC for an API signature or a webhook. No account, no installation, no server upload.

Client-side — your data never leaves the browser

This is the key point: all hashes are computed locally in your browser. Text hashing runs through the JavaScript library CryptoJS; file hashing additionally uses the browser's native Web Crypto API. Neither your message nor your file is ever sent to a server — even a 100 MB file is processed entirely on your own machine.

The only server feature is the optional passphrase generator behind the key icon: it calls a small endpoint that produces a random string via a cryptographically secure generator (random_int), which you can use as an HMAC key. The content you hash is never involved.

Which algorithms are available

For text, these algorithms are available as buttons, each with hex output:

  • MD5 — fast but cryptographically broken (use as a checksum only).
  • SHA-1 — also broken, kept only for compatibility/checksums.
  • SHA-2 family: SHA-224, SHA-256, SHA-384, SHA-512 — today's standard for integrity.
  • SHA-3 family: SHA-3 (224), SHA-3 (256), SHA-3 (384), SHA-3 (512) — the modern standard built on a different construction (Keccak).
  • RIPEMD-160 — a 160-bit alternative, known from the crypto space among others.

Almost every algorithm also has an HMAC variant (Keyed-Hash Message Authentication Code), which combines the hash with a secret key: HMAC-MD5, HMAC-SHA-1, HMAC-SHA-224/256/384/512, HMAC-SHA-3, and HMAC-RIPEMD-160. The file hashing computes eight checksums at once (MD5, SHA-1, SHA-256, SHA-384, SHA-512, SHA-3 (256), SHA-3 (512), RIPEMD-160). Exactly which button does what is covered in the manual.

Try it now

→ Open the Hash Generator — type text or drop a file, pick an algorithm, copy the hash. Free, no account, entirely in the browser.

Hashing is just one part of the crypto toolbox — these tools complement it:

  • Generator — for password hashing with BCrypt/Argon2, TOTP codes, and passwords. Important: to store passwords you need exactly that, not MD5/SHA from this tool.
  • Cryptor — for actual encryption and decryption (hashing is not encryption; see tips).
  • PKI — for certificates, key pairs, and signatures.

There's more on the subpages: the manual with every algorithm and every input/output option, hands-on examples, and tips & tricks with the all-important security context.