Free online CSS and JavaScript minifier tool. Reduce file size up to 70%, improve website performance, support bulk minification. Advanced options for JavaScript with variable mangling and dead code removal.
I’m excited to launch my CSS & JS Minifier tool!
It’s a free, simple-to-use online tool that helps you minify your CSS and JavaScript files in seconds—no signups, no hassle. Just paste your code, hit the button, and get compressed files that improve your site’s speed.
I built this tool to save developers time and boost productivity when working with front-end code. It’s lightweight and designed for ease of use. If you have any feedback or suggestions, I’d love to hear them!
Feel free to try it out and let me know what you think!
@grayson_parker2 Great question! In the single file minification, we display a before-and-after analysis, including function and loop counts, to give you insights into the optimization. However, in bulk minification, since files are processed and downloaded directly, the before-and-after size comparison isn’t shown within the tool. That said, you can easily check file sizes before and after by comparing the original and minified versions. We appreciate the feedback and may consider adding this feature in the future!
@harper_young Thank you for the feedback! Currently, our tool doesn’t have a built-in option to exclude specific JavaScript functions or CSS rules during minification. However, for JavaScript, you can manually handle exclusions by splitting your code and minifying only the parts you want. For CSS, you can do the same by pasting only the CSS you want to minify into the provided text area. If there’s enough demand, we may consider adding more granular control in the future. Let us know if that would be helpful!
The bulk minification feature is super handy. By the way does it offer a before-and-after size comparison so we can see the improvements?
@grayson_parker2 Great question! In the single file minification, we display a before-and-after analysis, including function and loop counts, to give you insights into the optimization. However, in bulk minification, since files are processed and downloaded directly, the before-and-after size comparison isn’t shown within the tool. That said, you can easily check file sizes before and after by comparing the original and minified versions. We appreciate the feedback and may consider adding this feature in the future!
I love how flexible this tool is. Are there ways to exclude certain JavaScript functions or CSS rules?
@harper_young Thank you for the feedback! Currently, our tool doesn’t have a built-in option to exclude specific JavaScript functions or CSS rules during minification. However, for JavaScript, you can manually handle exclusions by splitting your code and minifying only the parts you want. For CSS, you can do the same by pasting only the CSS you want to minify into the provided text area. If there’s enough demand, we may consider adding more granular control in the future. Let us know if that would be helpful!