SHA Hash Generator
Calculate a SHA-256, SHA-384, or SHA-512 checksum for text or a file. Processing stays in your browser.
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Verify text and file integrity
A cryptographic hash is a fixed-length fingerprint. If even one byte changes, the checksum changes. Compare this result with a checksum published by a trusted source.
For security-sensitive work, SHA-256 or stronger is a good default. This utility intentionally does not offer obsolete MD5 or SHA-1 hashing.
Frequently asked questions
Is my file uploaded?
No. Your browser reads the file and calculates the hash locally.
Can a hash be reversed?
A secure hash is one-way. It is not encryption and cannot be decoded back into the original input.