Crypto

The Crypto & Hash category brings together tools for common security-related tasks — from generating passwords to computing hash values and verifying them with bcrypt — all running entirely in your browser. Nothing you type or upload is sent to an external server; every operation happens client-side, so it's safe to use even with passwords or other sensitive information.

A hash function is a one-way transformation that always produces the same output (hash value) for the same input, which makes it useful for detecting file tampering and storing passwords securely. MD5 and SHA-1 are no longer recommended for new security applications because of known vulnerabilities, but they're still widely used for backward-compatible purposes such as checksum verification.