원클릭툴OneClickTool
KO

Readable code

Code Formatter

Format JavaScript, TypeScript, JSON, CSS, and HTML code in the browser.

Code

Workspace

Format indentation and code style instantly

Usage criteria

Code Formatter: how to review the result

Review what the tool changes and how to check the output before using it elsewhere. Comparing your inputs with the destination requirements helps prevent an otherwise valid result from being rejected.

What the result means

Paste compact or messy code, choose the language and style, and make it readable instantly.

Format indentation and code style instantly

Recommended workflow

  1. 1Paste code.
  2. 2Choose language and indentation options.
  3. 3Format and copy the result.

Checks before finishing

After processing, review JS/TS/JSON/CSS/HTML, 2/4-space indent, Quote options, code formatter, JavaScript formatter before using the result.

  • JS/TS/JSON/CSS/HTML
  • 2/4-space indent
  • Quote options
  • code formatter
  • JavaScript formatter

Processing method

Developer tools provide browser-based transformation and validation for quick checks. Re-test outputs before using them in production code or public links, and never paste passwords, API keys, or other secrets.

How files and inputs are handled

Core processing runs in the current browser whenever possible. OneClickTool does not store original files or tool inputs on its own server. Review the preview and output values before downloading or submitting an important result.

Frequently Asked Questions

Which languages can I format?

JavaScript, TypeScript, JSON, CSS, and HTML are supported with indentation and quote-style options.

Is pasted code sent to a server?

No. Formatting runs in your browser and the code is not saved on our server.

What happens if the syntax is invalid?

The tool shows an error so you can check the selected language or fix the input.

Supported Scope

Code formatting, JSON validation, Base64, URL encoding, and UTM URL building are supported.

External API calls, server log analysis, and security scanning are not currently supported.

  • code formatter
  • JavaScript formatter
  • TypeScript formatter
  • format code online

Related Guides

Check the criteria before using the tool to review results faster.

Developer Tasks
5 min read

Format and Validate JSON

Make JSON readable, find syntax errors, choose indentation, and minify only after validating the structure.