This lightweight TypeScript Formatter formats TypeScript-like code and does quick static validation checks in-browser. It is meant for fast styling and preliminary lint-like feedback without sending code to a server.
TypeScript Formatter — format & validate
Paste TypeScript code below, click Format to pretty-print, or Validate to run quick static checks.
const greet = (name: string) => console.log(`Hello ${name}`)
Formatted output
Result of the formatter — copy or download.
Validation report
TypeScript Formatter – Format TypeScript Code Online
The TypeScript Formatter by Qlix is a free online tool that helps developers format, beautify, and clean TypeScript code instantly. Whether you are working on a small script or a large enterprise project, well-formatted code improves readability, reduces errors, and makes collaboration easier.
This tool runs completely in your browser and does not store or send your code to any server, making it safe and privacy-friendly for everyday development tasks.
What is TypeScript?
TypeScript is a strongly typed programming language developed by Microsoft. It is a superset of JavaScript, which means that any valid JavaScript code is also valid TypeScript code. TypeScript adds optional static typing, interfaces, enums, and advanced tooling support to JavaScript.
Developers use TypeScript to catch errors early during development, improve code maintainability, and build scalable applications. Today, TypeScript is widely used in modern frameworks such as Angular, React, Vue, and Node.js applications.
Why TypeScript Code Formatting Matters
Formatting TypeScript code is not just about making it look clean. Proper formatting ensures consistency across files and teams, making code easier to understand and maintain.
- Improves readability and clarity
- Reduces mistakes caused by unclear structure
- Makes debugging and maintenance easier
- Helps teams follow a consistent coding style
- Creates cleaner code reviews and Git diffs
A TypeScript formatter automates these tasks and saves developers valuable time.
How to Use the TypeScript Formatter
- Paste your TypeScript code into the input editor.
- Choose formatting options such as indentation size (if available).
- Click the Format button.
- Copy or download the formatted TypeScript code.
The entire formatting process happens instantly in your browser without any page reload.
Example: Before and After Formatting
Before formatting:
async function getUser(id:number){return await fetchUser(id)}
After formatting:
async function getUser(id: number) {
return await fetchUser(id);
}
As you can see, the formatted code is easier to read and follow.
Who Should Use This Tool?
- Frontend and backend developers working with TypeScript
- Students learning JavaScript and TypeScript
- Developers preparing code for reviews or production
- Teams maintaining coding standards across projects
- Freelancers and professionals who want clean code quickly
Best Practices for TypeScript Formatting
Even when using an automatic formatter, following best practices improves overall code quality:
- Use consistent indentation (spaces or tabs)
- Keep line lengths readable
- Group related code logically
- Use meaningful variable and function names
- Follow community standards such as ESLint and Prettier rules
Privacy & Security
Your privacy is important. The Qlix TypeScript Formatter processes all code directly in your browser. Your data is never uploaded, stored, or shared with any server.
This makes the tool safe for formatting sensitive or proprietary code.
Frequently Asked Questions (FAQ)
Does formatting change the logic of my code?
No. Formatting only changes spacing, indentation, and structure, not functionality.
Can I use this tool for large TypeScript files?
Yes. The formatter supports both small snippets and large files.
Does this tool support TSX files?
Basic TSX formatting is supported depending on the code structure.
Is this tool free to use?
Yes. The TypeScript Formatter is completely free with no usage limits.
Is my code saved anywhere?
No. All processing is done locally in your browser.
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