Use the "Local file" or "Online file" buttons to specify how to upload the file to the server. Use the "local file" if you need to convert a file from your computer, in order to specify a file on the Internet, select "Online file" and in the appeared field paste the link to the file. We do not set any limits on the size of the file, but the larger the file, the more time it will take to convert. Just be patient and everything will turn out.
You do not need to select anything other than the file, the converter itself will determine the type by extension and perform the optimization.
To start the conversion, click the "Convert" button to start the transformation. If the conversion is successful, the file will be available in the "Conversion Results" section. If you just need to download a file, click on the file name. If you want to get other ways to save, then click on the icon to generate a QR code to upload the result to your mobile phone or tablet, and also if you want to save the file in one of the online storage services such as Google Drive or Dropbox.
Please be patient in the conversion process.
Basically, the optimization of files means reducing the file size to the minimum values without losing any functionality. First of all, optimization is important for sites where reducing the size of files will reduce the time of loading the page, as well as reduce the load on the server. For example, such requirements are set by PageSpeed Insights.
We recommend that you always save the original files. The optimization of CSS or JS will most likely make your file not easy to edit.