This free online tool is all you need for optimizing SVG images. In just two simple steps it will take care of lossless SVG optimization for you. You can compress multiple files at once and upload images up to 50MB in size.
Click on UPLOAD FILES, then choose up to 20 SVG files that you want to optimize. Wait until the compression process is complete.
Download each file individually or use DOWNLOAD ALL button to get them all at once in a ZIP archive.