Launching today
FixtureKit
Turn TypeScript interfaces into realistic mock data
10 followers
Turn TypeScript interfaces into realistic mock data
10 followers
FixtureKit is a free, entirely browser-based tool that uses semantic inference to turn TypeScript interfaces or Zod schemas into realistic mock data. Copy as raw TS, JSON, MSW handlers, or Playwright route mocks. Features an Adversarial Mode to stress-test your UI.
This solves one of those small dev chores that somehow eats half an afternoon.
I like that it starts from the schema I already have, instead of making me set up Faker rules from scratch. The Playwright and MSW exports are probably where I’d use it most, because mock data is much more useful when it can drop straight into tests or local dev.
Adversarial Mode is a nice idea too. Tables, forms, and profile screens always look fine until one weird string, empty value, or unsafe input shows up.
@eliot_argy Thanks Eliot! You nailed it -- setting up Faker rules from scratch for every single project was exactly the headache that pushed me to build this. I'm really glad the MSW/Playwright exports resonate with you. And totally agreed on Adversarial Mode; it’s amazing how quickly a 'perfect' UI breaks when a user decides to input a 500-character string or a null value 😂 Let me know if you run into any edge-case schemas it struggles with!
This is super helpful actually, i'm a SWE and this tool helps me in local development, thanks.
@therayess Thanks so much, Ammar! Really glad to hear it’s useful for your local dev workflow. If you don't mind me asking, are you mostly pasting in TypeScript interfaces or Zod schemas for your day-to-day work?