JavaScript image compressor. Uses the Browser's native canvas.toBlob API to do the compression work, which means it is lossy compression. General use this to precompress a client image file before upload it.

This article is a written version of the Stefan Judis talk “HTTP headers for the responsible developer” given at JavaScript fwdays'19, a conference for JavaScript developers .

Tired of being the "designer that doesn't know JavaScript". Dave Martin, currently designer at Wildbit, made this course for you.