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Free Hash Generator — Generate MD5, SHA-1, SHA-256 Hashes Online
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text.
About Hash Generator
Type or paste any text and generate its cryptographic hash using MD5, SHA-1, SHA-256, or SHA-512 algorithms — all computed locally in your browser. Hashes are used for verifying file integrity, storing password fingerprints, generating cache keys, creating unique identifiers for data, and blockchain applications. Compare hashes side-by-side and copy any result with one click.
How to Use Hash Generator
- 1Type or paste your text into the input field
- 2Select your hash algorithm: MD5 (fast, not secure), SHA-256 (secure), or SHA-512 (most secure)
- 3The hash appears instantly — no server round-trip
- 4Compare multiple algorithms side by side for verification
When to Use Hash Generator
- ▸Verifying file integrity after downloading software
- ▸Generating cache-busting keys for web development
- ▸Creating content-based unique identifiers for database keys
- ▸Comparing file contents without transferring the entire file
Frequently Asked Questions
- Which algorithm should I use?
- For security purposes, use SHA-256 or SHA-512. MD5 and SHA-1 are cryptographically broken and should only be used for non-security purposes like checksums or cache keys.
- Are the hashes computed securely?
- All computation happens in your browser using the Web Crypto API. Nothing is transmitted to any server. The input text stays entirely on your device.