Calculate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes for any text input.
A hash function converts any input text into a fixed-length string of characters. Each hash is unique to its input—even a tiny change produces a completely different output. This tool supports multiple algorithms: MD5, SHA-1, SHA-256, SHA-512, and bcrypt, each with different security levels and use cases. Hashing is one-way: you cannot reverse a hash back to the original text.
Verify file integrity, generate checksums, create unique identifiers for data deduplication, or test password hashing implementations. Security note: MD5 and SHA-1 are not secure for passwords due to known vulnerabilities—use bcrypt, SHA-256, or SHA-512 instead. Perfect for developers testing hash functions or verifying data integrity.