Hash Generator
MD5, SHA-1, SHA-256, SHA-512 & CRC32 with HMAC and checksum verification
Why people choose us
Private by design
Your input is processed securely and never sold. Client-side tools never leave your browser at all.
Instant & free
No installs, no waiting. Results in seconds, right in your browser, on any device.
Free forever
No sign-up, no watermarks, no limits. All client-side tools are free to use as much as you like.
Frequently asked questions
Are my files uploaded to a server?⌄
No. Text and files are hashed entirely in your browser using the Web Crypto API (SHA family) and self-contained MD5/CRC32 code. Nothing is transmitted, so it works offline and is safe for confidential data.
What is HMAC and when do I need it?⌄
HMAC is a keyed hash used to verify both the integrity and authenticity of a message with a shared secret. Enable HMAC and enter a key to compute HMAC-MD5/SHA-1/SHA-256/SHA-512 — commonly needed for API signatures and webhooks.
Is MD5 or SHA-1 still safe to use?⌄
For verifying downloads or non-security checksums they are fine and fast. But MD5 and SHA-1 are cryptographically broken (collisions are practical), so never use them for passwords, digital signatures or security. Use SHA-256 or SHA-512 there.