$ toolfu run hash-generator
Hash Generator — SHA-256, SHA-512, SHA-1 Online
Free online hash generator. Generate SHA-256, SHA-512, SHA-384, and SHA-1 cryptographic hashes instantly using the Web Crypto API — no data leaves your device.
all processing runs in your browser
hash-generator
input > text to hash
Generate Cryptographic Hashes Online — Free Hash Generator
Hash functions are one-way transformations that convert any input into a fixed-size string of characters. They are used for data integrity verification, password storage, digital signatures, and content addressing. This tool generates hashes using multiple algorithms simultaneously.
Type or paste your text and see the hash output for SHA-256, SHA-512, SHA-384, and SHA-1 in real time. Each hash can be copied individually. The hashing is performed using your browser's built-in Web Crypto API — no data leaves your device.
Common use cases
- Generating checksums to verify file or data integrity
- Creating content-addressable identifiers
- Comparing hash values for data verification
- Learning about different hash algorithms and their output sizes
$ cat FAQ.md
What hash algorithms are supported?▶
This tool supports SHA-256, SHA-512, SHA-384, and SHA-1. These are computed using the Web Crypto API built into your browser, ensuring fast and secure hashing without any external dependencies.
Is SHA-1 still safe to use?▶
SHA-1 is considered cryptographically broken for digital signatures and certificates. However, it is still used for non-security purposes like checksums and content addressing (e.g., Git). For security-sensitive applications, use SHA-256 or SHA-512.
Is my data sent to a server?▶
No. All hashing is done entirely in your browser using the Web Crypto API. Your input text never leaves your device.
Can I hash files with this tool?▶
This tool currently hashes text input only. For file hashing, you would need to read the file contents first. File hashing support may be added in a future update.