MD5 & Hash Generator

Free MD5 Generator — Generate MD5, SHA-1, SHA-256 & SHA-512 Hashes

Hash functions are fundamental tools in computing, used for verifying data integrity, generating unique identifiers, and (for secure algorithms) storing passwords. This free Online Hash Generator produces MD5, SHA-1, SHA-256, and SHA-512 hashes from any text input instantly. All hashing runs directly in your browser using the Web Crypto API — your text is never transmitted to any server.

Type or paste any text and select the hash algorithm. The tool generates the hash instantly. Copy the result for use in file verification, API authentication signatures, cache key generation, or any other purpose.

All four algorithms produce a fixed-length output regardless of input size. A single character or an entire book produces a hash of the same length. The avalanche effect ensures that even tiny input changes produce completely different outputs.

Hash Algorithm Comparison

MD5. 128-bit hash (32 hex characters). Fast, widely supported, not cryptographically secure. Good for checksums and cache keys, not for security.

SHA-1. 160-bit hash (40 hex characters). Stronger than MD5 but also deprecated for security uses. Still used in some legacy systems and Git commits.

SHA-256. 256-bit hash (64 hex characters). Part of the SHA-2 family. Currently secure and widely used for digital signatures, SSL certificates, and blockchain.

SHA-512. 512-bit hash (128 hex characters). The most secure of the four. Provides higher collision resistance at the cost of a larger output size.

Related Tools

• Password Generator – Generate cryptographically random passwords.
• Password Strength Checker – Test password strength.
• Binary to Text Converter – Convert between binary and text formats.

Frequently Asked Questions