Crypto Hash Tools
SecurityCompute cryptographic hashes instantly in your browser. Supports MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, and SHA-3. No data leaves your device.
Compute SHA-1, SHA-256, SHA-384 & SHA-512 digests
Computes all four SHA digests simultaneously. Paste or type any text on the left — the SHA-1, SHA-256, SHA-384 and SHA-512 hex digests appear on the right.
SHA-1SHA-256SHA-384SHA-512
Input Text
Hash Resultsplaintext
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About Crypto Hash Tools
Cryptographic hash functions map arbitrary data to a fixed-size digest. This tool computes hashes using the Web Crypto API entirely in the browser—your input never touches a server. Use it to verify file integrity, derive keys, or explore how different algorithms behave on the same input.
Features
- ✓MD5 hash generation (legacy compatibility)
- ✓SHA-1 through SHA-512 via Web Crypto API
- ✓SHA-3 family support
- ✓Real-time hashing as you type
- ✓Hex and Base64 output formats
- ✓Uppercase/lowercase hex toggle
- ✓Compare two hashes for equality
- ✓File hashing — drop any file and hash its contents
Common Use Cases
- Verifying downloaded file integrity against published checksums
- Generating deterministic IDs from content (content-addressed storage)
- Learning the output characteristics of different hash algorithms
- Password hashing exploration (compare with bcrypt for production use)
- Debugging HMAC or digital signature implementations
Frequently Asked Questions
QIs MD5 secure?
MD5 is broken for security purposes—collision attacks are practical. Use SHA-256 or better for any security-sensitive application. MD5 is fine for non-security checksums.
QCan I reverse a hash?
Hash functions are one-way by design. Reversing a secure hash is computationally infeasible. Preimage attacks against SHA-256 are not currently practical.
QWhy does the same file produce different hashes with different algorithms?
Each algorithm uses different internal compression functions and produces a different output length. SHA-256 always produces a 256-bit (32-byte) digest, SHA-512 produces 512 bits, and so on.