JSX Formatter
Format and beautify React JSX code
Input
Formatted Output
What is JSX Formatter?
Got messy JSX (JavaScript XML) code that's hard to read? This tool fixes that. It takes your JSX code and makes it beautiful – proper indentation, line breaks, everything organized. Whether you're working with React components, debugging JSX, or just trying to understand what your code actually says, this makes it readable.
According to React documentation, JSX is a syntax extension for JavaScript that lets you write HTML-like code in your JavaScript. Our formatter follows JSX best practices, so your formatted code is always clean and standards-compliant.
Best part? Everything happens instantly in your browser. No server uploads, no data storage – just paste, format, and copy. Your code stays private.
How to Use the JSX Formatter
Follow these steps to format your JSX. Each step uses the actual buttons and panels on this page.
Paste, Upload, or Load Sample
Paste JSX into the left panel, or click Upload to load a .jsx file. Click Sample to see example telecomm component. Example:
<SubscriberCard subscriberId="SUB-1001" plan="Unlimited 5G" dataUsage={45.2} status="active" carrier="Verizon" />View Formatted Output
The right panel shows the formatted JSX. Nested elements get proper indentation, attributes are aligned. Invalid JSX shows an error.
Copy or Download
Click Copy to copy to clipboard, or Download to save as .jsx. Use Clear to start fresh. All processing runs in your browser.
When You'd Actually Use This
React Development
Format JSX components to understand the structure, debug issues, or improve readability. Works great with React components or any JSX-based code.
Code Review
Reviewing JSX code? Format it first to see the structure clearly. Makes it easier to spot errors, understand component hierarchy, or compare different implementations.
Learning JSX
New to JSX? Formatting helps you understand the syntax. See how components nest, how props work, and how JSX structures are organized. Much easier than reading minified code.
Debugging
Trying to find a bug in your JSX? Formatting reveals the structure, making it easier to spot missing closing tags, incorrect nesting, or prop issues. The validation feature catches syntax errors instantly.
Common Questions
Is my JSX code stored?
No. All formatting happens in your browser using JavaScript. Your JSX never leaves your computer.
What JSX formats are supported?
We support all valid JSX according to React standards. Components, props, nested elements, JavaScript expressions – everything standard JSX supports. See MDN JavaScript docs for more on JavaScript syntax.
Can I format invalid JSX?
We'll try to format it, but if there are syntax errors, the output might not be perfect. Fix errors first for best results. Check React docs for JSX best practices.
What indentation does it use?
We use consistent spacing for indentation, making nested structures easy to read. The exact style follows common JSX formatting conventions.
How big can my file be?
Since processing happens in your browser using JavaScript, performance depends on your device. Small JSX files format instantly. Very large files might take a few seconds.
Does it work with TypeScript JSX?
Yes, we support TSX (TypeScript JSX) files as well. The formatting works the same way, preserving TypeScript syntax while formatting JSX structure per React standards.
Other JavaScript Tools You Might Need
Formatting is just one JSX task. Here are other tools that work well together: