UUID in Node.js: crypto.randomUUID() vs uuid Package Benchmarked
Generate UUIDs in Node.js: compare the built-in crypto.randomUUID() with the uuid npm package. Benchmark throughput and choose the right option.
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Tags: developer-tools, uuid, nodejs
UUID in Node.js: crypto.randomUUID() vs uuid Package Benchmarked Node.js 14.17 added to the built-in module, and it became globally available in Node.js 19. The npm package remains relevant for v7 sortable UUIDs, v5 deterministic UUIDs, and environments with older Node.js versions. Here is a complete comparison with real benchmarks. uuid Package — v4, v5, v7, Validation UUID v4 (random) UUID v5 (deterministic) UUID v7 (sortable timestamps) Validation --- Performance Benchmarks Benchmarked on Node.js 22, Apple M3, 1 million iterations each: Typical results: | Method | Time (1M) | Throughput | |--------|-----------|-----------| | | ~900ms | ~1.1M/s | | v4 | ~1300ms | ~0.77M/s | | v7 | ~1400ms | ~0.71M/s | is roughly 1.5x faster than the package's v4 for pure generation speed. In practice,…
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