SnIPPETsX › Online TypeScript compiler. No tsconfig required
Online TypeScript compiler. No tsconfig required.
Free online TypeScript compiler. Write TypeScript, run it instantly without tsc or a build step, see the output, and share a live link. No setup or signup.
Types, interfaces and generics — compiled and run server-side the moment you press Run.
The short answer
SnIPPETsX includes a free online TypeScript compiler. Choose TypeScript, write code with types, interfaces and generics, and press Run: SnIPPETsX compiles and executes it in an isolated sandbox and shows the output and any errors. There is no tsc install, tsconfig or build step, and the code is shareable by URL.
- TypeScript is compiled and executed server-side in one step.
- Snippets are shareable with real-time collaborative editing.
Test TypeScript without setting up a project
Trying out a TypeScript idea normally means npm init, installing typescript, writing a tsconfig and running tsc before you see a single line of output. SnIPPETsX removes all of that: pick TypeScript in the language selector, write your code and press Run.
It is useful for checking how a generic constraint behaves, demonstrating a discriminated union to a teammate, practising TypeScript interview questions, or reproducing a typing bug in a minimal snippet you can link in an issue.
As with every SnIPPETsX snippet, the URL is live. A reviewer can open it, edit the types alongside you and run it again, which makes it a fast way to settle a typing debate with a working example.
Key features
- No Build Step — Compile and run in one click — no tsc, tsconfig or bundler.
- Modern TypeScript — Interfaces, generics, enums, union types and async/await.
- Shareable Repros — Link a minimal TypeScript reproduction in an issue or PR.
How to share and run code online
- Open an editor — Go to snippetsx.com and click Start Session. No signup or install is required.
- Write or paste code — Type directly, paste an existing file, or add multiple file tabs for a project.
- Run it — Press Run to execute in a sandboxed cloud container and see stdout and stderr streamed back.
- Share the link — Copy the URL from the address bar. Anyone who opens it joins the same live session.
Frequently asked questions
Can I run TypeScript online without installing anything?
Yes. Choose TypeScript on SnIPPETsX, write your code and press Run. Compilation and execution happen server-side.
Does it support npm type packages?
No. Runs use TypeScript and Node.js built-ins only, which keeps every shared snippet reproducible.