Hash Generator
Compute SHA-1, SHA-256, and SHA-512 hashes instantly in your browser. No data is sent to any server. Free tool.
Enter text above to see the hashes
How to Use
Enter text
Type or paste the text you want to hash into the input field.
View hashes
SHA-1, SHA-256, and SHA-512 hashes are computed in real time as you type.
Switch case
Toggle between lowercase and UPPERCASE hex output using the buttons below the input.
Copy a hash
Click the Copy button next to any algorithm to copy that hash to your clipboard.
FAQ
A cryptographic hash function takes input data and produces a fixed-length string of characters. The same input always produces the same output, but even a tiny change in the input produces a completely different hash.
SHA-1 produces a 160-bit (40 hex character) hash and is considered cryptographically weak for security-critical uses. SHA-256 produces a 256-bit (64 hex character) hash and is widely used today. SHA-512 produces a 512-bit (128 hex character) hash and provides the strongest security of the three.
SHA-1 is no longer recommended for security-sensitive applications such as digital signatures or certificate generation. However, it remains useful for checksums and non-security integrity checks.
No. All hashing is performed in your browser using the Web Crypto API. Your text never leaves your device.
This tool hashes text input. To hash a file, copy the file's text content and paste it here. For binary files, a dedicated desktop tool would be more appropriate.