Paste code, choose JavaScript, CSS, or HTML, and format or minify instantly. Ideal for quick cleanup, reviews, and lightweight optimization.
How to use this Code Formatter effectively?
Select the language tab that matches your code, then paste your snippet into the input panel. Choose an indentation size and click Format to make the code readable, or click Minify to compress it for production. The output updates in the right panel, so you can compare before and after quickly. If your code includes comments or complex structures, formatting helps reveal structure and makes it easier to spot errors. Use the minify option when you need a compact snippet for embedding, but keep a formatted version for maintenance. For best results, format code after you finish editing so the indentation stays consistent.
Why use an online formatter?
An online formatter is fast, lightweight, and available on any device. It is perfect when you need a quick cleanup without installing IDE plugins or configuring tooling. Because the formatting runs locally in the browser, your code is not uploaded, which is important for private scripts or internal snippets. The tool also helps when you are reviewing code from a teammate, copying examples from the web, or preparing snippets for documentation. You can instantly switch between JS, CSS, and HTML without leaving the page.
Features breakdown
- Supports JavaScript, CSS, and HTML formatting.
- One-click minify for compact, shareable output.
- Adjustable indentation for team style guidelines.
- Side-by-side input and output for quick review.
- Local processing keeps code private.
- Works on desktop and mobile browsers.
Formatting vs minifying: when to use each
Formatting makes code readable by adding line breaks and indentation, which is best for debugging, learning, and code reviews. Minifying removes whitespace and comments to shrink file size, which is useful for production builds or embedding code in a limited space. Minified code is hard to edit, so keep a formatted copy as your source of truth. If you plan to run the code through a build pipeline later, use formatting for development and rely on your build tools for minification in production.
FAQ
Q: Will formatting change how my code runs?
A: Formatting only adjusts whitespace and line breaks, so it should not change behavior. Minifying removes whitespace and comments but also preserves logic.
Q: Is this the same as linting?
A: No. Formatting controls layout and whitespace, while linting checks for potential errors and code style issues. They complement each other.
Q: What if my code is invalid?
A: If the input is malformed, formatting may fail or produce unexpected output. Fix syntax errors first and try again.