This free JavaScript Minifier or JS Compressor by Small SEO Tools can help compress, obscure or minify JS online.

This JavaScript Minifier is a JavaScript minify tool that can help you minify and compress JS online. The tool works incredibly by decreasing the file size by removing all the unnecessary white spaces, lines, and indentation as well as unused characters. It can also help make your JavaScript more intricate so it will be hard to read and copy.