UUID Generator + Hash Compare
Generate random UUIDs (v4) in different formats, or compare two hashes side by side to check if they match.
UUID Generator
Click "Generate" to create UUIDs
Hash Compare
Paste two hashes below to check if they're the same. The comparison is case-insensitive and trims whitespace.
About this tool
Two tools in one. The UUID generator creates random v4 UUIDs using your browser's crypto API, so they're properly random and unique. You can generate them one at a time or in bulk, and pick the format that fits your use case. The hash compare section lets you paste two hashes and instantly see if they match. It ignores case and whitespace differences, and highlights exactly where two hashes differ when they don't match.
Generate up to 50 UUIDs at once
Four output formats: standard, uppercase, no dashes, braces
Copy individual UUIDs or all at once
Case-insensitive hash comparison with whitespace trimming
Character-level diff highlighting for mismatched hashes
Runs entirely in your browser, nothing leaves your device