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Generate cryptographic hashes for text input. Support for MD5, SHA-1, SHA-256, SHA-512 hash algorithms. Free online hash generator tool.
Support for MD5, SHA-1, SHA-256, and SHA-512.
Generate hashes instantly with browser crypto API.
All processing happens in your browser for privacy.
One-click copy for all generated hash values.
A cryptographic hash function takes input data of any size and produces a fixed-size string of characters. The same input always produces the same hash, but it's computationally infeasible to reverse the process.
For security applications, use SHA-256 or SHA-512. Avoid MD5 and SHA-1 for security purposes as they have known vulnerabilities. For non-security uses like checksums, any algorithm works.
No, cryptographic hashes are one-way functions. You cannot reverse them to get the original input. However, common inputs can sometimes be found using rainbow tables or brute force.
Different algorithms produce different output sizes: MD5 (128 bits/32 hex chars), SHA-1 (160 bits/40 hex chars), SHA-256 (256 bits/64 hex chars), SHA-512 (512 bits/128 hex chars).
Plain hashes are not recommended for password storage. Use proper password hashing functions like bcrypt, scrypt, or Argon2 with salt and multiple iterations for password security.