Wyvek

Hash Generator

Generate MD5, SHA-1, and SHA-256 hashes.

MD5 —
SHA-1 —
SHA-256 —
SHA-384 —
SHA-512 —

Free online hash generator

Generate cryptographic hashes from any text instantly. This tool computes MD5, SHA-1, SHA-256, SHA-384, and SHA-512 checksums right in your browser as you type. It's handy for verifying file integrity, creating content fingerprints, generating cache keys, and comparing data without exposing it.

How to generate a hash

  1. Type or paste your text into the box above.
  2. The MD5 and SHA hashes are calculated automatically and update live.
  3. Toggle Uppercase output if your system expects capitals.
  4. Click Copy next to any hash to copy it to your clipboard.

MD5 vs SHA — which should I use?

MD5 and SHA-1 are fast but no longer considered secure against deliberate collisions, so avoid them for passwords or signatures. For anything security-related, use SHA-256 or SHA-512. For simple checksums and non-security fingerprinting, any of them works. If you also need to encode data, try our Base64 encoder, or generate identifiers with the UUID generator.

Private by design

Every hash is computed locally using your browser's Web Crypto API and a client-side MD5 implementation. Nothing you enter is uploaded, so it's safe to hash confidential text.

Frequently asked questions

What is a hash?

A hash is a fixed-length string of characters generated from input data by a one-way function. The same input always produces the same hash, but you cannot reverse a hash back into the original data. Hashes are used for checksums, data integrity, and fingerprinting content.

Which hash algorithms does this tool support?

It generates MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text. SHA hashes are computed with your browser's built-in Web Crypto API, and MD5 is computed locally in JavaScript.

Is my text uploaded anywhere?

No. All hashing happens entirely in your browser. Your input is never sent to a server, so it is safe to hash sensitive strings.

Is MD5 secure?

MD5 and SHA-1 are considered cryptographically broken and should not be used for security-sensitive purposes such as password storage or digital signatures. They are still fine for non-security uses like checksums and cache keys. For security, prefer SHA-256 or SHA-512.

What can I use hashes for?

Common uses include verifying that a downloaded file has not changed (checksums), creating unique keys or identifiers from content, deduplicating data, and comparing large pieces of text quickly by comparing their hashes.

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