Free online tools

Code Formatter

Apply lightweight formatting to JSON, HTML, CSS, and JavaScript snippets.

Use the tool

Runs instantly in your browser. No upload needed.

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Frequently asked questions

Does this tool send my input to AsKrs?

Most tool pages run directly in the browser and are designed for quick local work.

What should I check before copying or downloading the result?

Review the preview, file name, format, size, and any warning message first.

What should I verify before I paste the Code Formatter output into another system?

Readable output is not the same as correct output.

Does readable output from Code Formatter mean the data is correct?

A visible before-and-after state reduces silent mistakes such as dropped fields, broken quoting, escaped twice values, or row misalignment.