Hash Generator
Generate cryptographic hashes (SHA-256, SHA-1, MD5, and more) from text using Web Crypto in your browser. Create checksums for files-as-text, compare digests, and copy hex output. Hashing never leaves the tab, so test strings and secrets stay private.
Runs in your browser. Nothing is uploaded.
About this tool
Hash text or a local file with MD5 (SparkMD5), SHA-1, SHA-256, or SHA-512. SHA family uses Web Crypto; output is hex and Base64. File hashing reads an ArrayBuffer in the tab. The file is not uploaded to a checksum SaaS.
How to use: paste a string or choose a file, pick an algorithm, copy hex or Base64. Checksum fixtures, compare downloads you already have, and fingerprint strings for cache keys. MD5 and SHA-1 are offered for compatibility, not for new password storage.
Example: hashing 'hello' with SHA-256 yields the well-known hex digest you can match against a unit test. A local ISO image can be fingerprinted without leaving the machine.
Digests are computed on-device. Source strings and files never leave the tab. Related: Base64 encoder for transport, password generator if you needed a secret rather than a digest. Copy hex for git-style checksums and Base64 when an API wants that alphabet. After the page loads you can keep hashing offline.
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