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JavaScript Formatter

Provided by10015 Tools10015.io

Pretty-prints JavaScript with configurable indentation and brace style, useful for working with minified third-party ...

Screenshot of JavaScript Formatter on 10015 Tools
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About this tool

What JavaScript Formatter does

JavaScript Formatter is a free online tool for formatting and beautifying JavaScript code. It takes raw, often compressed or minified JavaScript input and reformats it into a clean, structured output. The formatted result improves readability and makes code easier to manage and debug. The tool includes options to adjust indentation size and brace placement to match personal or team coding standards. The output can be copied to the clipboard or downloaded as a file for integration into projects.

Step by step

How to use the 10015 Tools JavaScript Formatter

  1. 1

    Paste raw or minified JavaScript code into the Raw JS Code input field

  2. 2

    Adjust the Indent Size and brace style preferences as needed

  3. 3

    Click the Format button to reflow the code into a structured layout

  4. 4

    Copy the Formatted JS Code to the clipboard or use the Download button to save the file

Is it right for you

Best for

Developers who need to quickly reformat minified or poorly structured JavaScript code to improve readability and maintainability without installing local software.

Limitations

  • No unit switching or language dialect options beyond indentation and brace style
  • Formatting results may not match every project's specific style guide exactly
  • The page contains advertisements and similar tool links that can distract from the primary function
Questions

JavaScript Formatter FAQ

Can I format JavaScript that has syntax errors?
The tool will attempt to reflow the code structure, but if the input has serious syntax errors, the output may not be valid or runnable JavaScript.
Is there a limit to how much code I can format at once?
The material does not specify a character limit, but very large files may cause performance issues or timeout depending on browser capacity.
Can I save my formatting preferences for later use?
The tool resets options to defaults each time it is loaded; there is no persistent save feature for custom indentation or brace settings.
Does the tool minify or compress the code after formatting?
No, JavaScript Formatter only beautifies and restructures existing code; it does not remove whitespace or rename variables to reduce file size.
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