Format TypeScript types and interfaces

Developers use TypeScript Formatter before a code review, debugging session or handoff to another contributor.

Format TypeScript types, interfaces and functions so reviews, edits and debugging become easier. Use it for free in your browser, with no account required.

How to use

Open the tool and paste your TypeScript code into the main input area.
Alternatively, import a TypeScript file or another supported text file using the import field.
Run the formatting action to adjust spacing, line breaks and indentation in the code.
Review the result in the output area, then copy it for use in your editor.
Clear the fields before handling another snippet so the previous content does not mix in.

Example

A developer prepares a code review by pasting a quickly written TypeScript interface, formatting it, and comparing the result with the original before adding it to a merge request.

Limits and formats

The tool does not fix logic errors or incompatible types; it mainly improves presentation.
Always review formatted output when your team follows a strict style guide.
Supported files include .ts, .tsx, .js, .json and other text formats, but the output is still text to copy.
For a large codebase, processing smaller blocks can make the result easier to check.

Where processing happens

Everything runs in your browser. The code you paste or import stays on your device and is not sent anywhere. You can format private snippets without creating an account.

Frequently asked questions

How do I know my TypeScript code is ready to format?

Paste a valid snippet or import a supported file. The tool focuses on layout, so it does not replace a TypeScript compiler or type checker.

Can I format a .tsx file that contains JSX?

Yes, the formatting applies to the file text. Review the JSX sections afterward, because the tool presents the code without enforcing your team conventions.

Does the result replace my original file?

No. The result appears in a separate area and you copy it if needed. Your original file remains unchanged on your device.