Hash Generator
Generate cryptographic hashes from text using SHA-1, SHA-256, SHA-512 algorithms (via SubtleCrypto) and MD5. All hashing runs in the browser — your data never leaves your device.
SHA-256 is the recommended algorithm for most hashing needs — it produces a 256-bit (64 hex character) digest and has no known practical attacks. MD5 and SHA-1 are deprecated for security use but remain common for checksums.
Type anything above to generate hashes instantly
Frequently Asked Questions
Is my input sent to a server?
No. All hashing is done in the browser using the Web Crypto API (SubtleCrypto). Nothing is transmitted.
Can I hash files?
Currently the tool hashes text input. File hashing support is on the roadmap.
Which algorithm should I use?
Use SHA-256 for general-purpose integrity checks and fingerprinting. Avoid MD5 and SHA-1 for security-sensitive use cases — both have known collision vulnerabilities. Use SHA-512 when you need extra collision resistance.
Are two different inputs guaranteed to produce different hashes?
Not guaranteed, but collision-resistant in practice. For SHA-256, finding two different inputs with the same hash would require approximately 2^128 operations — computationally infeasible with current hardware.