WeVividWeVividCompress JavaScript by stripping comments and extra whitespace, and see exactly how much smaller it gets.
No — this is a lightweight compressor that strips comments and whitespace only. For maximum compression with variable renaming, use a build-time tool like Terser.
It's designed to only remove safe whitespace and comments, but always test the minified output before shipping it, especially for complex code with template literals or regex containing //.
No — everything runs entirely in your browser.