Code Beautifier
Format and beautify code with proper indentation.
Beautify or minimize your code with the appropriate indentations to make code easier to read or move. No Signup Required.
How to use the Code Beautifier
Unformatted or minified code is hard to read and debug. This tool reformats JSON, HTML, and CSS with correct indentation. You can also minify code to reduce its file size for production.
- 1
Select the code type
Choose JSON, HTML, or CSS from the dropdown to tell the tool how to parse and format your input. The wrong type selection may produce unexpected results.
- 2
Paste your code
Paste minified, compressed, or poorly indented code into the input textarea. The tool accepts any amount of code.
- 3
Click Beautify or Minify
"Beautify" adds indentation and newlines to make code human-readable. "Minify" removes all unnecessary whitespace to reduce file size for production deployment.
- 4
Copy the output
Click "Copy Output" to copy the formatted or minified code to your clipboard, ready to paste into your editor, terminal, or API client.
Frequently asked questions
What is code beautification?
Code beautification (also called formatting or pretty-printing) adds consistent indentation, newlines, and spacing to code to make it human-readable. It does not change the behavior of the code — only its presentation.
Should I use 2-space or 4-space indentation?
This depends on the language and team convention. JavaScript and web projects typically use 2 spaces. Python conventionally uses 4 spaces. The most important thing is consistency throughout a project. JSON is commonly formatted with 2 spaces.
Why minify code for production?
Whitespace, newlines, and comments add to file size. Minification removes them, reducing bytes sent over the network and improving page load performance. A typical CSS or JavaScript file can shrink 30–70% after minification.
When should I NOT beautify code?
Avoid beautifying code in the middle of a project under version control — it produces large diffs that obscure real changes. Make formatting changes in a dedicated commit with no other modifications. Also avoid reformatting auto-generated code with a specific structure.
What is the difference between JSON and JSON5?
Standard JSON (what this tool uses) does not allow comments or trailing commas. JSON5 is a superset that adds these features and is used in some configuration files like tsconfig.json and some Babel configs. This tool parses standard JSON only.