Compare Hashes
Select multiple hash algorithms and compare their performance and outputs on the same input
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Select one or more hash algorithms above to start comparing.
Short explanation
Hash comparison helps you choose the right algorithm by looking at digest output, category, and relative runtime on the same input. The fastest algorithm is not always the safest one, so compare performance together with the intended use case.
When to use this page
- Validate that two algorithms produce the expected digest shape for the same input.
- Compare cryptographic hashes against non-cryptographic hashes before choosing a tool.
- Benchmark rough browser-side performance for data sizes similar to your workload.
When not to rely on it
- Do not treat browser timing as a final production benchmark.
- Do not choose MD5, SHA-1, CRC-32, or xxHash for security just because they are fast.
- Do not use fast hashes for password storage; use Argon2id, scrypt, bcrypt, or PBKDF2.
FAQ
Which hash algorithm should I choose?
Use SHA-256 for broad cryptographic compatibility, SHA3-256 for SHA-3 designs, BLAKE3 for modern high-performance hashing, Argon2id for passwords, CRC-32 for checksum compatibility, and xxHash for fast non-security fingerprints.
Why are non-cryptographic hashes faster?
They skip security properties such as strong collision resistance and preimage resistance, so they can optimize for speed and distribution.
Are these benchmark numbers exact?
No. Browser timing depends on CPU, tab state, input size, implementation, and runtime warmup. Use the numbers as a quick local comparison, not a formal benchmark.