Hash Generator (SHA-256, MD5, SHA-3 & more)
Local ProcessingHash text with any of 38 algorithms — SHA-256, MD5, SHA-1, SHA-3, BLAKE, CRC, xxHash and MurmurHash — in your browser.
How It Works & Processing Standards
Hash text with any of 38 algorithms — SHA-256, MD5, SHA-1, SHA-3, BLAKE, CRC, xxHash and MurmurHash — in your browser.
Tool processing runs in your browser. If you create a calculator or conversion share link, its values are included in the URL. See the privacy policy for account, analytics and advertising data.
Current Limits
- Maximum input length: 2,000,000 characters
Enter text and choose an algorithm to get a hex hash of its UTF-8 bytes. Security hashes (SHA-2, SHA-3, BLAKE) and error-detection or hash-table functions (CRC, Adler, xxHash, MurmurHash) are all in one place.
MD5 and SHA-1 have known collisions and must not be used for security. Store passwords with PBKDF2, bcrypt or Argon2, not a plain hash.
What You Can Do
- Security hashes
- SHA-256, SHA-512, SHA-3, BLAKE2, BLAKE3 for tamper checks.
- Legacy hashes
- MD5 and SHA-1 to match values from older systems.
- Checksums and fast hashes
- CRC-32, CRC-16, Adler-32, xxHash, MurmurHash3 (with seed).
- Input clean-up
- Advanced options normalise Unicode, trim and lower-case before hashing.
How to Use Hash Generator (SHA-256, MD5, SHA-3 & more)
- 1Enter textPaste the text to hash.
- 2Choose an algorithmPick SHA-256, MD5 or another.
- 3CopyCopy the hex hash.
Examples
Common Use Cases
- Comparing hashes to confirm a document or setting is unchanged
- Checking expected values for API signatures or cache keys
- Verifying a hash function written in another language
Frequently Asked Questions (FAQ)
My hash differs from another site.
A single trailing newline or space changes the hash completely; try "trim" in advanced options. Accented or composed characters can differ by NFC/NFD, so check Unicode normalisation too.
Can a hash be turned back into text?
No. Hashes are one-way; they are only for checking whether two inputs are the same.