What is xstate built with?
xstate is a TypeScript repo built with React, Solid, @angular/core, Angular, Preact, and 3 more. It makes its content with saxes, validates its data with Zod and Ajv, and is tested with Vitest, fast-check, Testing Library, @testing-library/preact, and @solidjs/testing-library. It has 235,571 written lines, with 398 test files.
LinkedInRead on November 7, 2026, at commit 975ba72. Read it as markdown
The card says what it's built with. Its whole map opens it up: every part of the code and how it connects to the rest.
Frontend
Support
Testing 5
- Vitest41 files
- Testing Library17 files
@testing-library/preact2 files
@solidjs/testing-library1 file
fast-check1 file
Tools 7
ts-morph16 files
@analogjs/vite-plugin-angular1 file
@oxlint/plugins1 file
@vitejs/plugin-vue1 file
- TypeScript1 file
- pkg-up1 file
- vite-plugin-solid1 file
Content 1
- saxes1 file
Other 5
- Effect13 files
rxjs13 files
use-sync-external-store2 files
- Immer1 file
- use-isomorphic-layout-effect1 file
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