Shrink photos, convert between JPG, PNG, WebP, and AVIF, convert iPhone HEIC photos, and resize images, all in your browser.
Not sure what quality number to use when compressing photos? See measured sizes at quality 75 and 60, when resizing beats lowering quality, and PNG tips.
Three ways to turn iPhone HEIC photos into JPG: switch the camera to Most Compatible, convert as you move photos to a computer, or convert in your browser.
No-upload tools run in your browser with WebAssembly, Web Workers and WebCodecs. See what the page loads, what it never sends, and how to check.
Compare JPG, PNG, WebP and AVIF on compression, transparency and browser support, and see which format fits photos, logos, web images and iPhone photos.
Match a photo to an online form's pixel, file size and format rules: what to check in the instructions, when not to edit, and why to resize first.