3 free tools

Flow Developer Tools

Convert, format, validate, and generate Flow code directly in your browser. Folioify tools are free, require no signup, and are designed for fast local developer workflows.

Flow to TypeScript

Convert Flow to TypeScript. Free, no signup, runs in browser. By Folioify.

Launch tool

Flow to TypeScript Declaration

Generate TypeScript .d.ts from Flow. Free, in-browser, no signup. By Folioify.

Launch tool

Flow to plain JavaScript

Strip Flow annotations to plain JavaScript. Free, no signup, runs in browser. By Folioify.

Launch tool

Why use these Flow 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.