Developer
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes instantly. Uses the Web Crypto API — nothing leaves your browser.
0 characters0 bytes
MD5128-bitBroken
—
SHA-1160-bitWeak
—
SHA-256256-bitSecure
—
SHA-512512-bitSecure
—
Related Tools
More free utilities you might find useful
Frequently Asked Questions
Quick answers to common questions
What is a hash function?+
A hash function takes any input and produces a fixed-length output (the digest). The same input always produces the same hash, but it's computationally infeasible to reverse.
MD5 vs SHA-256 — what should I use?+
MD5 is fast but cryptographically broken — collisions can be generated. SHA-256 is considered secure. Never use MD5 for security. Use it only for checksums where collision resistance isn't needed.
Can I recover text from a hash?+
No. Hash functions are one-way. You cannot reverse a hash. Attackers can try rainbow table attacks, which is why passwords must use salted bcrypt/Argon2, not plain SHA.