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mutant-cafe

šŸ§€ mutation testing for Effect TypeScript

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GITHUB · launched Nov 3, 2026 · 61 upvotes (top 41%) · 0 views

Niche: automated software testing tools · 174 launches, 11 in the last 7 days ▲ +10% · Explore this niche →

Category and tags
  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

Yes Mutation testing applies well-defined AST rewrites and reruns a test suite, which is tractable with standard tooling. A focused Effect TypeScript version is a bounded build for a developer with AI assistance.

Competitors

Other products that read as similar to this one : 795 launches clear the similarity bar, closest 8 shown.

Attention rank: #321 of 796 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 365 days after the earliest competitor.

  • mutator · github · 2026-09-30 · 21 upvotes · similarity 0.66
  • effect-tsrs · github · 2026-10-24 · 60 upvotes · similarity 0.63
  • Deslop · hn · 2026-10-13 · 32 upvotes · similarity 0.62
  • ts-rust · github · 2026-10-07 · 1036 upvotes · similarity 0.62
  • mutest · github · 2026-10-17 · 14 upvotes · similarity 0.58
  • container · github · 2026-09-23 · 11 upvotes · similarity 0.54
  • I wrote a book · hn · 2025-12-08 · 53 upvotes · similarity 0.53
  • ende · github · 2026-10-13 · 19 upvotes · similarity 0.53

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.