View CSS stylesheets with syntax highlighting, selector analysis, and smart formatting. Free, fast, and secure browser-based viewer.
or click to browse files
CSS selectors, properties, values, and comments are color-coded for easy reading
Automatically detects IDs, classes, elements, pseudo-classes, and media queries
View rule count, selector count, property count, and file size information
All processing happens in your browser - files never leave your device
This viewer supports CSS from various sources and preprocessors:
This viewer supports standard .css files, as well as preprocessor files like .scss and .less. It also accepts plain text files containing CSS code. The viewer provides syntax highlighting for CSS3 features including variables, media queries, animations, and modern selectors.
This is primarily a read-only viewer for analyzing and reviewing CSS files. However, you can use the Minify and Beautify features to transform your CSS, then export it. For full editing capabilities, consider using our JS/CSS Minifier tool.
Yes, your CSS files are completely secure. All file processing happens locally in your browser using JavaScript. Your files are never uploaded to any server, ensuring complete privacy for your stylesheets and design systems.
Formatted: Shows CSS with syntax highlighting for selectors, properties, values, and comments. Raw: Displays the original file content without any formatting. Structure: Shows an analyzed breakdown of selectors, properties, media queries, and keyframes found in the file.
The viewer can handle CSS files up to 5MB. Larger files may cause performance issues in your browser. For very large CSS frameworks, consider splitting them into smaller modules or using the minify feature to reduce file size.
The viewer provides syntax highlighting and structure detection but does not perform full CSS validation. It highlights selectors, properties, and values but cannot verify if your CSS will work correctly in all browsers. For validation, use the W3C CSS Validator.