JS/CSS Formatter
Apply simple indentation and line breaks around braces and semicolons. Because this formatter does not fully parse JavaScript or CSS, use it only for inspecting short, uncomplicated examples.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
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How to use this tool
Keep the original before pasting a fragment. Strings, comments and regular expressions can contain the same separators, so compare the output and run a real syntax check before using it.
Results and examples
A simple CSS rule such as a{color:red;} may become easier to read on several lines. Separators inside string literals can also be processed, so equivalent program behaviour is not guaranteed.
Limitations
- Character-level formatting can change meaning or produce invalid code.
- Do not overwrite production code without review or treat this as a standards-aware formatter.
Fields
| Field | Guidance and constraints |
|---|---|
| JavaScript | Check the unit and format displayed beside this field. |
| CSS | Check the unit and format displayed beside this field. |
| Source | Check the unit and format displayed beside this field. |
| Result | Check the unit and format displayed beside this field. |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
Which examples are suitable?
A simple CSS rule such as a{color:red;} may become easier to read on several lines. Separators inside string literals can also be processed, so equivalent program behaviour is not guaranteed.
Will formatted code behave identically?
Character-level formatting can change meaning or produce invalid code. Do not overwrite production code without review or treat this as a standards-aware formatter.
