Hash Generator

An honest hash generator: text, files, checksums, HMAC and real usage context.

People looking for a hash generator usually want one of three things: generate a digest from text, verify the integrity of a file or compare against a known result. This tool supports those intents with algorithms grouped by family: cryptographic hashes such as SHA-256, checksums such as CRC32 and HMAC signatures with a secret key. Instead of pretending every option is cryptography, the interface makes each family, use case and security level explicit.

Pick the right digest type for the right job.

1. Choose whether you are working with text or a file, then select the appropriate family: cryptographic hash, checksum or HMAC.
2. If you need authentication or signing, use HMAC and provide a secret key. If you only need simple integrity detection, a checksum may be enough.
3. Enable comparison to validate an expected digest and copy the summary to document algorithm, size, mode and result in audits or notes.

Use this tool on your site

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Sources and references for this tool

These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.

• FIPS PUB 180-4, Secure Hash StandardNIST, Specification for the SHA-2 family.
• RFC 6151, MD5 and HMAC-MD5 Security ConsiderationsIETF, Security context for legacy MD5 usage.

Frequently asked questions

Where to go next