Hash Generator – MD5, SHA1, SHA256 & SHA512 Online

About this tool

Different algorithms suit different use cases. MD5 produces a 32-character hash - fast and widely used for file checksums, though broken for security. SHA-256 is the current standard for security-sensitive hashing. SHA-512 doubles the output length for maximum collision resistance.

Generate MD5, SHA-1, SHA-256, or SHA-512 hashes from any text string - for file integrity verification, checksum generation, password hashing demonstrations, and API signature testing.

How to use Hash Generator

1. Step 1: Enter Text. Type or paste any text you want to hash.
2. Step 2: View All Hashes. SHA-1, SHA-256, SHA-384, and SHA-512 generate instantly.
3. Step 3: Check the Output. Review the hex-encoded hash string for each algorithm.
4. Step 4: Copy Hash. Click copy next to any algorithm to use the hash.

Where this tool helps

Generate MD5 checksums for file integrity verification, create SHA-256 hashes for API signatures and HMAC testing, hash text for password comparison demonstrations, verify downloaded file integrity against published checksums, generate test hashes for debugging hash-based authentication, and explore hash output differences across algorithm types.

• Supports MD5, SHA-1, SHA-256, and SHA-512 - the four most commonly needed hash algorithms.
• Runs in your browser using the Web Crypto API - your text never leaves your device.
• Instant output; copy any hash format with one click.

The most common question is whether a hash can be reversed. Hashing is one-way by design - there is no algorithm to recover the original text from the hash. What attackers use instead are rainbow tables: precomputed hash-to-text dictionaries for common passwords.