CSS & JavaScript Minifier
100% Client-SideCompress and minify CSS stylesheets and JavaScript scripts by stripping comments, spaces, newlines, and unnecessary tokens with live file size savings analytics.
How to Use CSS & JavaScript Minifier
Select CSS or JavaScript / JSON minification mode.
Paste raw, formatted source code into the editor.
Review compression percentage savings and copy minified output.
Key Features & Privacy
Removes multi-line comments (/* ... */), single-line comments (// ...), and excessive indentation.
Displays original bytes, minified bytes, and overall percentage reduction.
Preserves string literals and vital syntax structures.
This tool runs entirely in your local browser runtime. No logs, analytics tracking, or remote server transmissions occur.
Related Tools
View all Developer/Web Extras →HTML Entity Encoder
Encode special characters, quotes, ampersands, and HTML tags into safe named HTML entities (&, <, >) or decode HTML entities back to characters.
Screen Resolution Checker
Inspect live display resolution (Width x Height), available desktop screen workspace, browser viewport dimensions, Device Pixel Ratio (DPR), and orientation.
Browser Info & Diagnostics Checker
Inspect complete client-side browser diagnostics including User-Agent parsing, browser engine, operating system, WebGL GPU rendering info, and storage support.