JavaScript Formatter
Format JavaScript snippets with readable indentation. Free, private, and local-first.
Use JavaScript Formatter
Format JavaScript snippets with conservative indentation.
Paste code and run the tool locally.
Quick answer
JavaScript Formatter is a free online tool that helps you format JavaScript snippets with readable indentation. It runs in your browser, so you can work with development data, text, files, or generated output without creating an account.
About JavaScript Formatter
JavaScript Formatter helps you format JavaScript snippets with readable indentation. It is designed for focused local-first workflows where you need a quick result without creating an account or sending your input to a server.
Common uses include making copied javascript snippets easier to inspect, cleaning inline scripts before debugging, preparing readable examples for documentation.
Use the examples, usage notes, FAQ, and related tools below when you need to compare formats, build sample data, validate inputs, or move into the next step of the same workflow.
What this tool does
How to use JavaScript Formatter
- 1
Paste your JavaScript into the input editor.
- 2
Click Format to process it locally.
- 3
Review the formatted JavaScript and any status message.
- 4
Copy the result or use it as the next input for another pass.
Examples
JavaScript input
function hello(name){if(name){return `Hello ${name}`}}
Formatted output
function hello(name) { if(name) { return `Hello ${name}`; } }
Use cases
- Making copied JavaScript snippets easier to inspect
- Cleaning inline scripts before debugging
- Preparing readable examples for documentation
- Reviewing compact code from logs or browser snippets
Related workflow
After using JavaScript Formatter, many workflows continue with related tools for validation, conversion, cleanup, mock data, or final export.
Privacy and usage notes
CodeVella tools are designed to run locally in your browser. Your input is not uploaded to a server, and no account is required.
Generated test data is intended for development, QA, demos, and safe internal workflows.
Frequently asked questions
Is my data uploaded?+
No. This tool is designed to run locally in your browser.
Do I need an account?+
No signup is required for CodeVella tools.
What does JavaScript Formatter do?+
JavaScript Formatter helps you format JavaScript and produce formatted JavaScript directly in your browser.
Will this change the meaning of my code?+
The tool is designed to preserve the parsed content while making the result easier to read, validate, or convert.
Can I use this for large files?+
Normal snippets, configs, and copied payloads work well. Very large files depend on your browser memory because processing happens on your device.