Code Beautifier Online
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Free java script beautifier for your browser. A lightweight and free JavasScript, CSS, and HTML beautifier.

"Code Beautifier Online" is an add-on that allows you to quickly beautify scripts in your browser. JavaScript, CSS, and HTML are among the input languages this extension supports. You may either browse files using the (+) button at the UI (top-left corner) or drop a file into the left textarea. Because code formatting is based on detected coding language, it's preferable to utilize the latter method since the input language can be determined automatically and the user interface will be updated accordingly (no need to modify the input language manually). With "Code Beautifier Online," you may use it offline. It makes use of an open source library called js-beauty. Furthermore, it utilizes the well-known CodeMirror ( library to format input and output codes. The interface has a number of buttons in the top toolbar that are self-explanatory. There is also a list of preferences at the top with various options for the beautifier. Select any option and observe the effect straight away in the output field by changing any desired setting. To obtain a beautified result, please click the download button in the top toolbar.

4.9 out of 513 ratings

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Pedro ClarkeSep 1, 2022

Very good extension with simple interface

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Devin WalkerAug 26, 2022

Good extension but lacks more advanced features. My work also just need this extension is enough

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Angela BarlowAug 24, 2022

As the name suggests, I love this extension


  • Version
  • Updated
    May 26, 2022
  • Offered by
    David Klayer
  • Size
  • Languages
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes


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