About Hash Generator
Generate cryptographic hashes (MD5, SHA-1, SHA-256, and more) from any text, right in your browser. Hashes are used for checksums, data integrity, and fingerprinting.
How to Use
- Paste or type the text you want to hash.
- Choose the hash algorithm (e.g. SHA-256).
- Read the resulting hash digest.
- Copy it for verification or storage.
Why Use This Tool?
- Accurate — built on precise, well-tested mathematical formulas.
- Instant — all calculations happen client-side for zero latency.
- Private — no data is sent to any server; your information stays on your device.
- Free — no sign-up, no limits, no hidden costs.
Frequently Asked Questions
What is the difference between MD5, SHA-1, and SHA-256?
They are different algorithms producing different-length digests. MD5 and SHA-1 are fast but cryptographically broken — fine for non-security checksums, not for security. SHA-256 is currently recommended where integrity matters.
Can a hash be reversed back to the original text?
No. Hashing is one-way by design. Identical input always gives the same hash, but you cannot compute the input from the hash — though weak hashes can be attacked with precomputed 'rainbow' tables.
Should I hash passwords with these algorithms?
Not directly. For storing passwords use a slow, salted algorithm like bcrypt, scrypt, or Argon2 — plain SHA/MD5 are too fast and vulnerable to brute-force attacks.