Can macOS batch-convert PNG images to WebP?

Yes. Add multiple PNG files or a folder containing them to the task queue, then choose WebP as the target format.

Is lossless WebP always smaller than PNG?

No. Lossless mode is about reversible pixels. File size still depends on image content and encoder output.

No. ImgConvert is a desktop app and processes conversion locally.

MACOS · PNG → WEBP

ImgConvert reads the PNG files or folders you intentionally select on macOS and writes WebP to a directory you choose.

Lossless WebP targets reversible pixels; it does not promise that every PNG will be smaller than its source.

Multiple PNG images can be processed in one queue, with no original-image upload.