webp-conv
Usage: node index.js [optional path to input folder] [optional path to output folder] [optional path to cwebp] [flags]
Compatible formats: png, jpg, jpeg
Flags:
-h - Show this help prompt and exit
-s - Execute script silently
-t - Test mode (i.e. no actual processes are spawned)
-c [number] - Maximum number of cwebp processes allowed at once (default: 3)