Piclizer

Hash Generator

Verify a download or fingerprint a piece of text. Hashes are computed with the browser's native Web Crypto API, so even large files never leave your device.

Settings

Compare two hashes

Hashes are one-way — they cannot be reversed back into the original data. SHA-1 is included for compatibility only and is no longer considered secure.
All processing is done locally in your browser. Your images never leave your device.

How to use

  1. 1

    Choose text or file mode.

  2. 2

    Type your text or select a file.

  3. 3

    Read the hashes for every supported algorithm.

  4. 4

    Paste a reference hash into the comparison box to verify it.

Supported formats

Accepts

Produces

FAQ

SHA-1, SHA-256, SHA-384 and SHA-512, all provided by the Web Crypto API.

MD5 is cryptographically broken and is not offered by Web Crypto. SHA-256 is the right default today.

No. Hashing is one way; identical input always gives identical output, but the original cannot be recovered.

No. The file is read locally and hashed in your browser, which is why very large files are limited only by memory.

Hash the downloaded file, then paste the publisher's checksum into the comparison box to see whether they match.

About this tool: Hash Generator

Cryptographic hashes, computed locally

The Hash Generator computes SHA-1, SHA-256, SHA-384, SHA-512 and MD5 digests for any text or file — up to 200 MB — using your browser's native crypto engine. Drop a file or paste a string, and every checksum appears at once with one-click copy.

Hashes verify integrity: compare the SHA-256 of a downloaded file against the publisher's checksum to detect corruption or tampering, deduplicate files by digest, or store password-equivalent fingerprints safely. Publishing a checksum alongside a release lets every recipient verify they received exactly what you built.

Computing happens locally — this is the crucial property for a hash tool, since hashing a secret through a third-party server would defeat its purpose. Your files and strings never leave your device, and the digests are produced by the same WebCrypto implementation your applications use.

Like every Piclizer tool, this one runs entirely in your browser — your files stay on your device.

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