Paste your JavaScript source into the input and select Format, then compare the output before copying or downloading it. The example below deliberately keeps the source unchanged. This tool's conservative transformation preserves JavaScript rather than applying unsafe whitespace rewrites that could change automatic semicolon insertion or regular expression literals. Read any preservation notice instead of assuming that a successful action must reindent every line.
Use the operation on a copy of your source and retain your project's normal lint and formatting workflow. It does not execute the program, check TypeScript types, or establish runtime correctness. Minify uses the same safety boundary and can also return unchanged code. Do not infer a size reduction from the button label alone; inspect the output and the reported size for the exact input you supplied.
Input: const answer = 42;
Format output: const answer = 42;
Minify output: const answer = 42;
A JavaScript formatter is a tool that beautifies and restructures JavaScript code by adding proper indentation, line breaks, and consistent spacing. It improves code readability, makes debugging easier, and helps maintain consistent coding standards across teams.
Minify can remove bounded leading indentation while retaining line boundaries and protected syntax. It does not rename variables, bundle imports, or promise to remove comments. Some inputs remain unchanged with a preservation notice. Compare the actual output and run your project checks before using it; broader production optimization belongs in your configured build pipeline.
Processing runs in your browser. Choosing Share uploads the selected tool state; anyone with the link can open it. Signing in to save sends content to your account library and records save history. Review the selection before either action. Closing the page does not delete those copies. Copying locally does not create a server share.
The scanner adjusts bounded leading indentation while preserving line boundaries and sensitive syntax. It can return the original input with a notice when no safe change is available. This avoids joining lines that affect automatic semicolon insertion or rewriting protected literals. It does not promise full parser based formatting or production bundle optimization.
No. Formatting does not execute JavaScript, resolve imports, compile TypeScript, or verify application behavior. Keep your normal lint, type-check, and test workflow. Compare the downloaded source before replacing a file, and use the project’s own build tool when you need module bundling, dead-code elimination, or parser based minification.