Mindshare › The Test Runner War

The Test Runner War Week 31 · closed 2026-07-31 · 23:59 UTC Conversational market share · X

Jest has taken the lead.

Week 31 closed 2026-07-31. Jest led with 47.4%.

1 week at #1 · 766 posts tracked

Live standings · trailing 7 days · updated 49h ago

1 JestLeader 47.4% ▲ 4.4

2 Playwright 39.0% ▼ 7.4

3 Cypress 9.0% ▲ 3.9

4 Vitest 4.6% ▼ 0.9

Head to head

leader vs #2 · pairwise share

Pairwise share of the X conversation — sums to 100. Gap 9.6 points. Open duel page →

organic mentions · 7d · X API

Public X posts only — organic, retweets excluded. Aggregate counts; no user data stored. Each row's exact query:

Jest ("Jest" (testing OR test OR "e2e" OR QA OR JavaScript)) -is:retweet
Playwright ("Playwright" (testing OR test OR "e2e" OR QA OR JavaScript)) -is:retweet
Cypress ("Cypress" (testing OR test OR "e2e" OR QA OR JavaScript)) -is:retweet
Vitest ("Vitest" (testing OR test OR "e2e" OR QA OR JavaScript)) -is:retweet