5 free tools
TypeScript Developer Tools
Convert, format, validate, and generate TypeScript code directly in your browser. Folioify tools are free, require no signup, and are designed for fast local developer workflows.
TypeScript to Flow
Convert TypeScript to Flow type annotations. Free, no signup, runs in browser. By Folioify.
TypeScript to TypeScript Declaration
Generate .d.ts declaration files from TypeScript. Free, in-browser, no signup. By Folioify.
TypeScript to JSON Schema
Generate JSON Schema from TypeScript types. Free, no signup, runs in browser. By Folioify.
TypeScript to plain JavaScript
Compile TypeScript to plain JavaScript. Free, in-browser, no signup. By Folioify.
TypeScript to Zod Schema
Generate Zod schema from TypeScript types. Free, no signup, runs in browser. By Folioify.
Why use these TypeScript tools?
These tools focus on quick transformations and validation tasks that developers repeat during implementation, debugging, documentation, and migration work.
Are uploads required?
No. Tools run in the browser whenever possible, so code snippets stay on your device and can be copied out immediately.