What is a code formatter and why should I use it?

A code formatter automatically rewrites source code into a consistent style with proper indentation, spacing, and line breaks. It improves readability, reduces code review noise, and helps teams maintain uniform coding standards. This free online formatter works directly in your browser with no signup, no ads, and no data upload — your code stays completely private on your device.

Which formats are supported in this online formatter?

This free code formatter supports JSON, JavaScript, TypeScript, HTML, CSS, Markdown, and SQL. You can switch between language modes and format your code instantly in the browser. Each language uses dedicated parsing rules for accurate beautification. No signup or installation required — just paste your code, select the language, and click format for clean output.

Does it validate JSON and SQL syntax?

Yes, the formatter performs parser-based analysis before beautifying. If the input contains syntax errors — such as missing brackets in JSON or invalid SQL keywords — the tool returns a descriptive error message to help you locate and fix the issue. This validation feature is free to use, runs in your browser, and requires no signup or server upload.

Can I use this as a Postman or IDE quick helper?

Yes. This free tool is perfect for quick formatting tasks during API debugging with Postman, SQL query cleanup, and copy-paste workflows when a full IDE is not available. Simply paste unformatted code, select the language, and get clean output instantly. No signup, no ads, and everything runs privately in your browser without uploading any data.

Code Formatter

Beautify JSON, SQL, JS, TS, HTML, CSS, Markdown

Input

Output

🌍 Used by 50,000+ users⭐ 4.9/5 rating🔒 100% Private🚫 No Ads, No Signup

Code Formatter Features

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100% Free & Private

No ads, no signup, no watermark. Formatting runs locally in browser.

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Multi-Language Beautifier

Format JSON, SQL, JavaScript, TypeScript, HTML, CSS, and Markdown.

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Parser-Based Validation

Get syntax error hints when parser cannot process malformed code.

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Copy Output Quickly

One-click copy improves API, SQL, and code review workflows.

Frequently Asked Questions

A code formatter rewrites source code into consistent style and indentation. It improves readability, reduces review noise, and keeps team coding standards aligned.

This formatter supports JSON, JavaScript, TypeScript, HTML, CSS, Markdown, and SQL. You can switch language mode and format instantly in browser.

It performs parser-based formatting. If syntax is broken, formatter returns error to help locate invalid structure before beautifying output.

Yes. It is useful for quick formatting during API debugging, SQL query cleanup, and copy-paste workflows outside full IDE setup.

Yes, 100% free with no ads, no registration, no watermark, and no usage limits. All processing happens locally in your browser — your data is never uploaded to any server.

Code Formatter

Input

Output

Code Formatter Features

100% Free & Private

Multi-Language Beautifier

Parser-Based Validation

Copy Output Quickly

Frequently Asked Questions

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