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LEAD CHANGE Day 27 · 2026-07-27

Day 27: Jest takes the lead.

Jest overtook Playwright to lead the The Test Runner War.

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Context · 2026-07-27
1 JestLEAD CHANGE 46.0%
2 Playwright 41.5%
3 Cypress 6.9%
4 Vitest 5.7%

Methodology

organic mentions · X API

Public X posts only — organic, retweets excluded. Aggregate counts; no user data stored. JSON

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