Web & CSS
Front-end helpers for CSS, HTML, JS and responsive units. Copy, paste, ship.
20 free web & css tools. Every tool runs in your browser, works without an account, and processes files locally whenever the browser allows it.
By the utils.sbs team · Reviewed November 2026
The shelf
All web & css tools
20 tools · updated for 2026
- CSS MinifierMinify CSS for production with safe whitespace removal.
- HTML MinifierCompress HTML by removing comments and extra whitespace.
- JS MinifierStrip comments and unnecessary whitespace from JavaScript.
- CSS BeautifierFormat compressed CSS into readable rules.
- HTML BeautifierIndent and tidy HTML source.
- SQL FormatterFormat SQL with uppercase keywords and indentation.
- Clamp CalculatorGenerate a fluid CSS clamp() between two viewport sizes.
- PX to REM ConverterConvert pixel values to rem based on root size.
- REM to PX ConverterConvert rem units back to pixels.
- Meta Viewport GeneratorGenerate a responsive viewport meta tag.
- Flexbox GeneratorConfigure flex layout and copy the CSS.
- CSS Grid GeneratorBuild a grid template and copy the CSS.
- Button CSS GeneratorGenerate accessible button CSS with hover states.
- Background Pattern GeneratorCreate CSS-only striped, dotted or grid backgrounds.
- CSS Filter GeneratorCombine filters and copy the CSS declaration.
- Breakpoint GeneratorGenerate common responsive breakpoint variables.
- Z-Index Scale GeneratorCreate a consistent z-index scale and CSS variables.
- CSS Reset GeneratorGenerate a modern, minimal CSS reset.
- HTML Entity ReferenceLook up and copy common HTML entities.
- Viewport Unit ConverterConvert between vw/vh and pixels.
How this shelf works
About web & css tools
Web & CSS tools handle the small, repeatable jobs that show up between real work: minify, generate, convert. They are built as focused utilities, so each page does one job without asking you to create an account or install software.
Open a tool, add your input, adjust the settings, and download the result. Processing happens in the browser using the platform APIs available for that file type. Files are not uploaded to a server, so the tool keeps working offline once the page has loaded.
Looking for something else? Browse the full tool index or search the catalogue from the homepage.
Web & CSS tool questions
Are web & css tools free?
Yes. Every web & css tool on utils.sbs is free, requires no account, and has no per-file or per-use charge.
Are my files uploaded when I use a web & css tool?
No. The tools are designed to process input in the browser whenever the platform API allows it. Files are not uploaded to a server for processing.
Do I need to install anything to use these tools?
No. Everything runs in a modern web browser. Open a tool page, use the workspace, and download the result.
How do I choose the right web & css tool?
Each tool page describes what it does, its input and output formats, the engine it uses, and its limitations. Start with the description that matches your job, then open the tool page for the workspace and step-by-step guide.