SHA-1 Generator
Generate a fast, reliable SHA-1 hash from any text — fully offline and privacy-first. This ESDSoftware tool runs entirely in your browser using the Web Crypto API, so your data never leaves the page. It’s ideal for quick integrity checks, lightweight fingerprints, and development workflows where you need a deterministic 40-character hex digest on the fly. No extensions, no network calls — just paste your input, hit Generate, and copy the result instantly.
How to Use
- Paste or type your text into the input box.
- Click Generate SHA-1 (or press Enter) to compute the hash.
- Copy the 40-character hex digest with one click.
- Use Clear to reset and start again.
FAQ
Is SHA-1 safe for passwords?
No. SHA-1 is broken for collision resistance and not recommended for password hashing. Use modern, slow KDFs like Argon2, scrypt, or bcrypt for credentials.
Does the tool upload my text?
No. Hashing happens 100% client-side in your browser.
What’s the input size limit?
About 1 MB per run (guarded by TextEncoder) to keep performance stable.
