What Are UUID and Hash?
This tool covers two common developer needs. A UUID (Universally Unique Identifier) is a 128-bit ID whose collision probability is practically zero; used for database records, file names and API keys. A hash is a one-way function that turns text into a fixed-length, irreversible digest; used for data-integrity checks and comparison.
Two Modes
- Generate UUID: produces as many (1-20) random UUID v4 values as you want, each created with cryptographically strong randomness.
- Compute hash: shows the MD5, SHA-1 and SHA-256 digests of your text at once.
Security Note
MD5 and SHA-1 are not safe for storing passwords; they suit file-integrity checks, checksums and cache keys. For storing passwords, dedicated algorithms like bcrypt/argon2 must be used (our own panel stores passwords with bcrypt). SHA-256 is stronger but still should not be used directly for passwords. Your input and the generated values are not stored on the server. For secure authentication, data integrity and custom systems, see our custom software development service.