Image Converter
Convert a batch of images between JPG, PNG and WebP, optionally resizing and compressing them at the same time.
How to use the Image Converter
- 1Add your images — formats can be mixed.
- 2Choose the output format and quality.
- 3Optionally cap the maximum width or height.
- 4Convert, then download individually or as a ZIP.
How it works
Every image is decoded to raw pixels, optionally scaled, and re-encoded in the target format. Because everything passes through a common pixel representation, any input format the browser can read can become any output format it can write.
The three formats suit different jobs. JPEG is the smallest for photographs and is universally supported. PNG is lossless and keeps transparency, which makes it right for logos, screenshots and anything with hard edges. WebP does both jobs better than either — typically 25–35% smaller than JPEG at the same visible quality, with transparency support — and is now supported everywhere except some older desktop software.
Images are decoded by the browser, redrawn on a canvas and re-encoded on your own machine. Nothing is uploaded, so there is no waiting on a queue and no copy of your photos anywhere else.