Convert images

JPG, PNG, WebP and ICO. We tested every combination in Chrome, Firefox and Safari and kept the ones all three produce correctly. BMP, GIF, AVIF and TIFF are not offered: browsers can’t write them, and the bad part is that they don’t say so — ask for a BMP and you get a PNG named like a BMP. Firefox is the only one that writes BMP and ICO natively, which is exactly why testing in a single browser is not enough.

Yes, fully in PNG and WebP, partial transparency included: a soft edge or a gradient shadow comes back with its values intact. Converting to JPG brings up a background color picker, because JPG has no alpha channel and that area has to be painted something.

Yes. When you add an SVG we ask for the output dimensions, 512 × 512 px by default. It is needed because an SVG is vector art with no natural size: if you don’t say, each browser invents a different one — Chrome and Safari use 150 px and Firefox 300 px for the same file.

Through the canvas, browsers only give access to the first frame of a GIF, with no exception across engines. If you add an animated GIF we tell you before converting and you decide: convert that first frame, or cancel that file.

Yes. We generate the multi-size ICO with 16, 32 and 48 px, which is the standard format. Copy it as favicon.ico at the root of your site and browsers will pick it up for the tab on their own. If your image is not square we center it and pad with transparency, so it does not come out stretched.

That is compression, and we have a separate tool for it. If you pick converting a JPG to JPG we tell you and take you to Compress images. And if what you want is to change the pixel dimensions, that is what Resize images does.