Are MD5 and SHA-1 secure?

No. They are broken for security purposes but still fine as fast checksums for detecting accidental corruption.

Can I hash large files?

Yes. Files are read into memory and hashed locally, so size is limited only by your browser's available memory.

SHA-256 & hash generator

Generate a cryptographic hash of any text or file. Choose MD5, SHA-1, SHA-256, SHA-384, or SHA-512 — computed locally with WebCrypto, nothing uploaded.

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What a hash is

A cryptographic hash maps any input to a fixed-length fingerprint. The same input always yields the same digest, and even a tiny change produces a completely different one.

Why generate hashes

Hashes verify that a download was not corrupted or tampered with, deduplicate files, and act as content fingerprints in caches and integrity checks.

Which algorithm to pick

SHA-256 is the sensible default. SHA-384 and SHA-512 offer longer digests, while MD5 and SHA-1 remain useful for checksums despite being unsuitable for security.

Computed locally

SHA algorithms use the browser's built-in WebCrypto, and MD5 runs as local JavaScript. Your text and files never leave the device.

How to sha-256 generator

Choose Text or File input.
Pick the hash algorithm you need.
Enter text and click Generate, or drop a file to hash it.
Copy the resulting hex digest.

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