DevTools / Formatters

Clean Code, Instantly.

Beautify obscure code dumps into readable syntax. Support for 30+ languages including Python, JSON, SQL, and JavaScript.

Code never leaves your browser
Zero-latency formatting
Syntax Validation

Supported Languages

21 Modules

Why use an Online Code Formatter?

Standardizing code syntax improves readability and reduces merge conflicts.

Debug Faster

Receiving minified JSON responses from an API or messy SQL queries from logs? Paste them here to instantly indent and structure the data, making it human-readable for debugging.

Standard Compliance

Our tools adhere to popular style guides:

  • Python: PEP8 Standards
  • JavaScript: Prettier/Airbnb Style
  • SQL: Standard ANSI indentation

Secure & Private

Warning: Many online formatters send your code to their backend. Selqio operates strictly client-side. If you paste an API key or database string, it stays in your RAM, not our logs.

Developer FAQ

Does this support minification?

Yes. Most of our formatters (like CSS, JSON, and JS) act as a toggle. You can choose to "Beautify" (expand) or "Minify" (compress) your code for production.

Can I format partial code snippets?

Absolutely. You don't need a full file. Just paste the function, class, or array you are working on, and our engine will handle the indentation logic.

Is it safe to paste proprietary code?

Yes, on Selqio it is. Unlike server-based tools, we use JavaScript libraries to process text in your browser. We have zero visibility into what you paste.

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