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javascript•Feb 23, 2026
Vitest vs Jest: A Migration Guide with Performance Benchmarks
Discover the benefits of migrating from Jest to Vitest, including 10x faster performance and native ESM support. Learn how to migrate your test suite and optimize performance with real benchmarks.
sitepoint
Original source
Key summary
Migrate from Jest to Vitest and experience 10x faster performance with native ESM support. This guide provides a step-by-step migration path, performance data, and gotchas to consider.
TL;DR
- Vitest is 10x faster than Jest
- Native ESM support for improved performance
- Migration path from Jest to Vitest
- Performance data from a 50k test suite
- Gotchas to consider during migration
- Optimize test suite performance with Vitest
- Real benchmarks for comparison
- Step-by-step migration guide
This content is automatically summarized using AI. For full context, always refer to the original article.
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