Hash Generator (MD5, SHA-1, SHA-256, SHA-512)
Generate MD5 and SHA hash values from text online
About Hash Generator (MD5, SHA-1, SHA-256, SHA-512)
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text instantly. All hashing is done locally using the Web Crypto API (and a client-side MD5 implementation). Compare hash values, verify data integrity, and generate checksums for strings without installing any software.
Use Cases
- Generating checksums for data integrity verification
- Creating hash values for password comparison (not storage)
- Computing file content hashes for deduplication
- Verifying download integrity with known hash values
Frequently Asked Questions
What is a hash?
A hash is a fixed-size string generated from input data using a mathematical algorithm. The same input always produces the same hash, but you cannot reverse a hash back to the original data.
Which hash algorithm should I use?
SHA-256 is the standard choice for most applications. MD5 and SHA-1 are considered weak for security but still useful for checksums. SHA-512 offers the highest security.
Is MD5 secure?
MD5 is not secure for cryptographic purposes (password hashing, signatures). It's still commonly used for non-security checksums like verifying file downloads.
Is my data processed locally?
Yes. SHA hashes use the browser's Web Crypto API and MD5 runs client-side JavaScript. Nothing is sent to any server.