Lumarc DevTools

Security Tools

Hash Generator

Generate SHA-256, SHA-384 or SHA-512 digests with the browser crypto API.

Processed locally — your data never leaves this browser. Input: Text Output: Hex digest
Text

Processed locally — your data never leaves this browser.

Hex digest

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Example input and output

SHA-256 of hello

hello
2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824

How to use Hash Generator

Paste or enter your text, adjust any options, then run the tool. The result appears in the output panel where you can copy or download it.

Related guides

What this tool does

The Hash Generator uses SubtleCrypto to produce hexadecimal SHA digests for checksums, cache keys and integrity debugging. It is free to use and designed for technical workflows where pasted data should stay private.

Common use cases

  • Create checksums
  • Compare known digests
  • Debug content-addressed values

Privacy and security

Processed locally — your data never leaves this browser. Lumarc DevTools does not include a backend, account system or hidden analytics in this initial release.

Limitations

  • This is not a password-storage tool and does not support keyed HMAC in this version.

Frequently asked questions

Should I hash passwords with this?

No. Fast SHA hashes are for checksums, not password storage. Use password hashing algorithms such as Argon2 or bcrypt server-side.