Hash Generator

Compute cryptographic hashes of any text. Select an algorithm, paste your input, and click Run — useful for checksums, API signatures, and debugging.

  • Runs entirely in your browser
  • No data stored or sent to a server
  • Free forever — no signup
  • Instant conversion

Input and Output

Use the interactive encoder and decoder on this page to process your text.

Learn more about hash generation

How to Generate Cryptographic Hashes

Hash Generation

When to Hash Data

Hashes produce a fixed-size fingerprint of input data. Use them for checksums, deduplication keys, cache keys, and verifying file integrity — not for storing passwords (use bcrypt or Argon2 instead).

Algorithm Guide

  • SHA-256 — default choice for most checksums and fingerprints
  • SHA-512 — longer output, same family as SHA-256
  • SHA-1 — legacy; avoid for security-sensitive use
  • MD5 — legacy checksums only; not collision-resistant

Frequently asked questions

Is hashing done locally?

Yes. All hash computation runs in your browser using the Web Crypto API (or a small MD5 library). Nothing is sent to a server.

Why is my hash different from another tool?

Hashes are sensitive to exact input bytes. Differences in trailing newlines, encoding (UTF-8 vs Latin-1), or uppercase hex output can cause mismatches.