TypeScript to JavaScript Converter
Strip TypeScript type annotations, interfaces, type aliases, generics, enums, and
as-casts from your source. Conversion runs
entirely in your browser — your TypeScript is
never uploaded. Useful when you need a plain ES module for a JS-only build pipeline or
a CodePen-style demo.
What this stripper removes
- • Parameter and return type annotations
- • Variable type annotations (
const x: T = ...) - • Generic type parameters (
<T>) - •
interfaceandtypedeclarations - •
ascasts andsatisfiesexpressions - •
!non-null assertions - •
enumdeclarations (optionally compiled toconstobjects) - •
public/private/protected/readonlymodifiers
When to use this tool
Sometimes you need plain JavaScript — for a CodePen, a JS-only bundler config, a
snippet inside Markdown, or to feed code into a tool that can't parse TypeScript. This
converter gives you valid ES module output without needing to spin up
tsc.
For the opposite direction, see the JS to TS converter.
