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Guides Pricing
● HASH · 6 tools

Hash & Crypto Tools Online

Generate cryptographic hashes and message authentication codes online for free — MD5, SHA-1, SHA-256, SHA-512 and HMAC. Hash text or files right in your browser; nothing is uploaded.

6 free tools free forever runs in browser
HASH · MD5 open full tool →
Hello, World!
RESULT ✓ 
65a8e27d8879283831b664bd8b7f8ad4

↳ act on the page: the flagship tool is one paste away — no second click to get value.

What do you want to do?

Hash text (MD5/SHA) Hash Generator → Generate a SHA-256 digest SHA-256 Hash Generator → Sign a payload with HMAC HMAC Generator → Verify a legacy SHA-1 SHA-1 Hash Generator →

Most used

start here
H Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC32 hashes...
H SHA-256 Hash Generator
Generate SHA-256 hashes online for free. Compute cryptographic S...
H HMAC Generator
Generate HMAC signatures online for free. Compute HMAC-MD5, HMAC...

All Hash tools

3 more
MD5 Hash Generator SHA-512 Hash Generator SHA-1 Hash Generator

MD5 vs. SHA-256 vs. HMAC — which do you need?

TOOL USE WHEN RESULT
MD5 Hash Generator A quick, non-security checksum 128-bit digest
SHA-256 Hash Generator Integrity for anything that matters 256-bit digest
HMAC Generator Proving who signed it, not just that it changed Keyed signature

Hash guides

Guide

MD5 vs SHA-256 vs SHA-512: which hash to use

Hash tools FAQ

A combined Hash Generator (MD5, SHA-1, SHA-256, SHA-512 at once) plus dedicated SHA-256, SHA-512, SHA-1 and HMAC generators.
Neither — use bcrypt or Argon2 for passwords. MD5 and SHA-256 are for checksums, integrity verification and API signatures.
Use HMAC when you need to verify both integrity AND authenticity — it proves the data was signed by someone who knows the secret key. It is the standard for API request signing and webhook verification.
No. Hashes are computed in your browser and the input is never stored.

Related categories

Encoding · 18 Base64, JWT, URL & entity encoders. Generators · 17 UUIDs, passwords, palettes & filler. JSON · 15 Format, validate, diff & convert JSON.
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