A CSS formatter beautifies minified or poorly formatted CSS into clean, readable code with consistent indentation and spacing. Developers use it to make stylesheets readable for debugging, code review, or documentation after receiving minified production CSS.
No. The formatter only restructures whitespace and indentation. It does not fix syntax errors.
The tool focuses on standard CSS. SCSS and Less may work for simple cases.
No. Only whitespace and formatting are modified. All selectors, properties, and values are preserved.
Yes. The formatter handles CSS custom properties, container queries, nesting, and all modern CSS3+ features.
The formatter focuses on whitespace and indentation. Property order is preserved as-is from the original CSS.
Yes, this tool is completely free with no usage limits, no ads, and no account required.
Yes. Once the page loads, all processing happens locally in your browser — no internet connection needed.
Absolutely. Your data never leaves your browser. Everything is processed client-side with zero server uploads.
smalldev.tools is no longer available. Prism by SWEDevTools offers the same developer tools and more, with offline support, pipeline chaining, and completely free usage — no signup required.
Yes. Prism formats and validates CSS entirely in your browser — no uploads, no tracking, and full offline support. Chain CSS tools with other Prism utilities in pipelines.