Free Online Hash Generator – MD5, SHA-1, SHA-256, SHA-512 Checksum & HMAC Calculator for Text and Files

Hash Generator & Checksum Verifier

Calculate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 for text or files, add HMAC, and verify checksums • 100% free • No upload to server

1. Output

Hash format Hex (lowercase) Hex (UPPERCASE) Base64 Text mode Hash the whole text (all algorithms) Hash each line separately (one algorithm)

Algorithm for each line MD5 SHA-1 SHA-256 SHA-384 SHA-512 Show the original line next to each hash

2. HMAC (optional)

Use HMAC with a secret key Secret key

HMAC proves a message came from someone who knows the key. It applies to the text and file results. The key never leaves your browser.

3. Verify a checksum

Paste the expected hash

Works for hex or Base64. Pasting a line such as "hash filename" from a checksum file is fine.

Your text

Text hashes

File Checksum

Choose any file (up to 200 MB) to get its hashes and compare them with the checksum published by the download site.

Click to choose a file, or drag and drop it here

Everything runs in your browser. Your text, keys and files are never uploaded. MD5 and SHA-1 are fine for checksums but are not secure for passwords or signatures.