Free Browser Hash Generator
Generate SHA-1 and SHA-256 hash values for text strings without uploading anything to a server. The tool uses the browser Web Crypto API, so the text you paste is processed on your device and the resulting checksum appears instantly.
How to Use
- Paste the text, token, configuration value, or sample payload into the input box.
- Click SHA-256 for a modern 256-bit digest, or SHA-1 when you need to compare against a legacy system.
- Copy the SHA-256 result when you need to store or share a checksum.
Hash Algorithms Included
- SHA-256: Recommended for modern integrity checks, release checksums, and comparing text without exposing the original value.
- SHA-1: Included for legacy compatibility only. SHA-1 is no longer recommended for security-sensitive uses because collision attacks are practical.
What This Tool Is Good For
Hashes are useful when you need a repeatable fingerprint of a value. Developers use them to compare configuration snippets, verify downloaded text files, check whether two strings are identical, and create reproducible test fixtures. A small change in the input produces a completely different hash, which makes accidental edits easy to spot.
Important Limitations
A hash is not encryption. You cannot recover the original text from a hash, and you should not treat unsalted hashes as safe password storage. MD5 is intentionally not included because the browser Web Crypto API does not support it and because MD5 is unsafe for modern security use. If a legacy system requires MD5, use a dedicated audited tool and avoid sensitive inputs.
Privacy
All hashing is performed locally using your browser's built-in crypto API. Nothing is sent to any server, which makes this safer for API snippets, sample secrets, and internal identifiers than server-side hash tools.
Last reviewed: July 2026.