TypeScript Playground

Name: TypeScript Playground
Author: TypeScript Playground

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What TypeScript Playground is

TypeScript Playground is a free web environment for writing, running, and sharing TypeScript and JavaScript code. It works with .ts, .tsx, .js, .jsx, and .d.ts files. Select Run to convert code to JavaScript, execute it in the current browser session, and view console output in Logs; the same browser session can be used to experiment with DOM APIs. The editor centers on one text document, so it can support teaching and code experiments without project setup. A focused set of compiler options is available in the TS Config panel, while twoslash annotations can set additional options. Shared URLs can preserve code, compiler flags, and settings. Users can choose among supported TypeScript builds, including beta, nightly, pull request, and older builds. Interactive examples and tutorials cover TypeScript, JavaScript, and release changes. The Export menu can create Markdown, open code in TypeScript AST Viewer, or export a project to CodeSandbox or StackBlitz. Plugins include Presentation Mode, Clippy, TSQuery, Collaborate, and Transformer. Its mobile layout uses a single-pane editor, and broader Node project work can be continued through the export options.

Who it suits

It suits learners, educators, and developers who want to try TypeScript or JavaScript in a browser without setting up a project. It is also useful when sharing a code example with its compiler settings or exporting a project to CodeSandbox or StackBlitz.

What it does well

Runs code in the browser and shows console output in Logs.
Supports TypeScript, JavaScript, and declaration file formats.
Shared URLs can retain code, compiler flags, and settings.
Exports Markdown or projects to CodeSandbox and StackBlitz.
Includes interactive examples, tutorials, and plugins.

What to know first

The editor focuses on one text document.
Mobile view does not show transpiled JavaScript alongside source.
Running code is scoped to the current browser session.

Limits

The editor is focused on a single text file. Its mobile layout is single-pane and does not show transpiled JavaScript beside the source.

Plans

Plan	Billed and limits	Price
TypeScript Playground	Browser based · focused on a single text document	Free

As typescriptlang.org lists them, read 9 Oct 2026. The maker's own page has the final word.

Getting started

Open https://www.typescriptlang.org/play in a web browser.
Write or load a supported TypeScript or JavaScript file.
Adjust available compiler options or use twoslash annotations.
Select Run to execute the code and view output in Logs.
Use Export to create Markdown or continue in TypeScript AST Viewer, CodeSandbox, or StackBlitz.

Verdict

Choose TypeScript Playground for browser-based experiments, instruction, or sharing a configured code example. Look elsewhere when you need a general-purpose Node project environment or a mobile view that shows source and transpiled JavaScript together.

Questions

Is TypeScript Playground free?

Yes. It is free, with a free plan and no free trial.

Which platforms does it support?

It is a web-based environment.

Which file types can it work with?

It supports .ts, .tsx, .js, .jsx, and .d.ts files.

Can I share code with compiler settings?

Yes. URLs can represent code, compiler flags, and settings.

Can I export my work?

The Export menu can generate Markdown, open code in TypeScript AST Viewer, or export a project to CodeSandbox or StackBlitz.

Who makes TypeScript Playground?

The listed maker is TypeScript Playground.

Facts from TypeScript Playground's own pages

Browser execution: Running code executes it in the current browser session and can be used to experiment with browser DOM APIs. · typescriptlang.org, 9 Oct 2026
Compiler settings: The TS Config panel exposes a focused selection of compiler options, and twoslash annotations can set options outside that selection. · typescriptlang.org, 9 Oct 2026
Examples: The Playground includes interactive examples and tutorials covering TypeScript, JavaScript, and release changes. · typescriptlang.org, 9 Oct 2026
Export options: The Export menu can generate Markdown, send code to similar tools such as TypeScript AST Viewer, or export a project to CodeSandbox or StackBlitz. · typescriptlang.org, 9 Oct 2026
Founded: 2012 · typescriptlang.org, 28 Sept 2026
Free plan: Yes · typescriptlang.org, 20 Sept 2026
Integrations: The Export menu includes options to open code in TypeScript AST Viewer, CodeSandbox and StackBlitz. · typescriptlang.org, 9 Oct 2026
Limit: The Playground focuses on a single text file, and its documentation directs users to CodeSandbox or StackBlitz when they need a general-purpose Node project environment. · typescriptlang.org, 9 Oct 2026
Maker: Microsoft's corporate address is in Redmond, Washington, and its facts page lists 1975 as its founding year. · news.microsoft.com, 9 Oct 2026
Mobile use: The mobile layout uses a single-pane editor, so users cannot see transpiled JavaScript on that layout. · typescriptlang.org, 9 Oct 2026
Other exports: The editor can export Markdown for bug reports or chat and send code to tools such as the TypeScript AST Viewer. · typescriptlang.org, 9 Oct 2026
Plugin development: The plugin tutorial lists Node.js, yarn, and Firefox, Edge, or Chrome as requirements for its workflow. · typescriptlang.org, 9 Oct 2026
Plugins: The Playground supports plugins, including default examples such as Presentation Mode, Clippy, TSQuery, Collaborate and Transformer. · typescriptlang.org, 9 Oct 2026
Plugin support: The TypeScript Community Discord is suggested for plugin questions, and polished plugins can be published to npm to appear in the plugins sidebar. · typescriptlang.org, 9 Oct 2026
Purpose: The Playground is an online environment for writing, sharing, and safely experimenting with TypeScript and JavaScript code. · typescriptlang.org, 9 Oct 2026
Related downloads: The TypeScript download page lists npm, NuGet and a Visual Studio extension as installation routes for TypeScript. · typescriptlang.org, 9 Oct 2026
Run code: The Run button converts code to JavaScript, runs it in the current browser session, and shows console output in the Logs tab. · typescriptlang.org, 9 Oct 2026
Shareable settings: Compiler flags can be reflected in the browser URL so shared links retain settings that differ from defaults. · typescriptlang.org, 9 Oct 2026
Shareable URLs: Playground URLs can represent code, compiler flags, and settings so users can share an environment. · typescriptlang.org, 9 Oct 2026
Single-file limit: The Playground focuses on one text file, and its export feature can recreate a corresponding Node project in CodeSandbox or StackBlitz when more features are needed. · typescriptlang.org, 9 Oct 2026
Supported files: It supports .ts, .tsx, .js, .jsx, and .d.ts files. · typescriptlang.org, 9 Oct 2026
Supported file types: The Playground supports .ts, .tsx, .js, .jsx and .d.ts files. · typescriptlang.org, 9 Oct 2026
Use case: The handbook describes it as a teaching tool for safely experimenting without setup in a single text document. · typescriptlang.org, 9 Oct 2026
Version selection: Users can select among supported TypeScript builds, including beta, nightly, pull request, and older builds. · typescriptlang.org, 9 Oct 2026