Stop setting up 5 different mocks for Stripe, Gmail & Slack — WorldFixture does it all, 100% free.
WorldFixture is an open-source fake company that emulates real third-party services so your test data actually feels real.
🔑 The 2 coolest things:
1. One fake company backs everything — Stripe, Gmail, Slack, GitHub APIs all return realistic responses through a single setup.
2. The data across services is connected, so your fake Slack messages reference your fake Stripe charges the way real ones would.
How to try it free:
1. Head to the WorldFixture GitHub repo (linked below)
2. Clone the project and follow the README to spin it up locally
3.
💡 Testing against real APIs costs money, hits rate limits, and needs keys. WorldFixture gives you realistic, connected fake data for free — forever.
🔗 https://worldfixture.com/
#OpenSource #DevTools #FreeTools
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September 8, 2026 123 1
