Javascript formatter
Parse and format code without executing it.
Paste JavaScript source code. It is parsed as text, not executed. Results update as you type. Up to 1,000,000 characters.
Your result
How to use Javascript formatter
- Enter javascript in the input field.
- The result updates as you type. Adjust the available settings if needed.
- Review the result, then use Copy result or a download link when available.
Useful next steps
Working with javascript formatter
Formatting makes existing data or code easier to read. Validation checks whether it follows a syntax or schema. Conversion maps it into another representation. Choosing the right operation helps avoid treating a neatly formatted result as proof that the underlying data is correct.
Common questions
Does valid JSON mean the data is correct?
Syntax validation only establishes that the text can be parsed as JSON. A schema can check required fields and types, but neither proves that an email address, price or external record is factually correct.
Is decoding the same as decrypting or verifying?
No. Base64 and URL encoding are representations, not encryption. Reading a token payload does not verify its signature. Use the specific validation or verification process required by the system receiving the result.
Continue your workflow: HTML formatter, CSS formatter, SQL formatter.