What this tool does
A hash is a one-way fingerprint of your text or file contents. The same input always creates the same result, and even a tiny change in the input creates a very different hash.
Hash & Checksum Generator
Hash text or local file contents directly in your browser. Modern SHA, SHA-3, and BLAKE2 options are included for stronger integrity checks, and legacy SHA-1 and MD5 options are available for compatibility when older workflows still require them. You can also verify a generated hash against an expected checksum.
Hashing uses the exact characters you enter, including spaces, punctuation, and line breaks.
Only the raw file contents are hashed. The file name and local file path are not part of the hash result.
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SHA-256 is the usual choice for modern integrity checks. SHA-384 and SHA-512 produce longer fingerprints, while SHA-3 and BLAKE2 add alternative modern hash families.
Verification
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Legacy algorithm selected
SHA-1 and MD5 are included only for compatibility with older tools and download verification workflows. They should not be used for new security-sensitive designs when SHA-256 or stronger options are available.
Why it is secure here
This tool runs locally in the browser. SHA hashes use the browser's Web Crypto API, and legacy compatibility hashes plus bundled on-page SHA-3 and BLAKE2 implementations, so your text and files are not sent to the server, not saved on the server, and not kept in server memory.
What file hashing means
When you hash a file here, the tool reads the bytes of the file in your browser and creates a fingerprint from the contents. That makes it useful for checking whether a downloaded file matches a published checksum.
What hashing is good for
- Checking whether two pieces of text are exactly the same.
- Creating checksums or stable fingerprints for data and downloads.
- Verifying integrity when a workflow expects a published hash value.
- Choosing between different modern hash families when a workflow specifically calls for SHA-2, SHA-3, or BLAKE2.
Legacy compatibility note
MD5 and SHA-1 are still used in some older download and tooling workflows, which is why they are available here. For new work, prefer SHA-256 or stronger options whenever you have the choice.
Important note
Hashing is not encryption. This tool is for fingerprints and integrity checks, not for securely storing account passwords on a website.