Hash Generator
Compute SHA-1, SHA-256, SHA-384, SHA-512 or MD5 hashes of text or files, right in your browser. Fast checksums for integrity checks — nothing uploaded.
This tool runs entirely in your browser. Your data never leaves your device — it is not uploaded to any server.
How to use
- 1Pick the algorithm: SHA-256 by default, or SHA-1/384/512/MD5.
- 2Type or paste text — or switch to File mode and drop a file in.
- 3Copy the hexadecimal digest; compare it with the expected checksum.
Hash Generator
Hash any text as you type, or drop in a file to fingerprint it without reading it byte by byte. SHA-2 family digests run on the browser's native WebCrypto engine; MD5 uses a vetted JavaScript implementation — all local, all free.
Typical uses: verifying a download against a published checksum, deduplicating files, generating cache keys, or comparing two versions of a document. Switch algorithms with one click and copy the hex digest instantly.
Frequently asked questions
Which algorithm should I use?
SHA-256 is the sensible default for integrity checks and fingerprints. SHA-384/512 for longer digests; SHA-1 and MD5 are legacy — fine for non-security checksums, but do not rely on them against attackers.
Can a hash be reversed to recover the input?
No. Hashes are one-way: fixed-length digests discard information by design. Finding an input that produces a given digest means brute-forcing the whole space.
Are my text and files uploaded?
Never. Hashing runs locally in your browser — even multi-gigabyte files are read by your own device only.
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Embed this tool
Put this tool on your own site with one line — it runs entirely in the visitor's browser.
<iframe src="https://zoyku.com/en/tools/hash-generator?embed=1" width="100%" height="640" style="border:0;border-radius:16px" title="Zoyku — hash-generator" loading="lazy"></iframe>