The Image Format Converter turns images into PNG, JPG, WebP, AVIF, GIF, BMP or ICO directly in your browser, with no file upload to any server. It reads every format your browser can open, including AVIF and SVG, plus HEIC and HEIF photos from iPhones, which most browsers cannot open on their own. Drop in as many files as you like, paste a screenshot with Ctrl+V, pick the target format and convert the whole batch at once. When there are several results, one click downloads them all as a single ZIP file. AVIF output uses the same libavif encoder as Google Squoosh, so you get files that are often half the size of a JPG even in browsers that cannot save AVIF on their own. After converting, the Compare view puts the original and the result side by side under a draggable divider, with an actual size mode for spotting compression artifacts before you download. Options include a quality slider for JPG, WebP and AVIF, a background color for formats without transparency (JPG and BMP), and resizing by percentage or by maximum width, so you can shrink a 12 megapixel phone photo and change its format in one step. ICO output packs 16, 32, 48, 64, 128 and 256 pixel sizes into one icon file, ready for Windows shortcuts or a website favicon. GIF output keeps simple transparency. Because each image is redrawn on a canvas, EXIF metadata such as GPS location and camera details is removed from the output, which makes the converter a quick way to strip location data before sharing a photo. In a typical image workflow, Image Compressor can squeeze the result further, Image Resizer can resize images to exact pixel dimensions, and Favicon Generator builds a complete favicon set for a website. Pages preset for common conversions include HEIC to JPG Converter, WebP to JPG Converter, PNG to JPG Converter and PNG to WebP Converter.
Choosing the right image format for web use has a significant impact on file size and quality. JPEG (Joint Photographic Experts Group) uses lossy compression optimized for photographs: it discards subtle color gradients in ways the human eye does not easily notice, achieving compression ratios of 10:1 to 20:1 at acceptable quality. PNG (Portable Network Graphics) uses lossless compression and supports full transparency (alpha channel), making it ideal for logos, icons, screenshots, and images with sharp edges or text. WebP is Google's modern format that achieves better compression than both JPEG and PNG at equivalent quality: typically 25 to 35 percent smaller than JPEG at the same quality setting, and 26 percent smaller than PNG for lossless images. WebP also supports transparency like PNG. GIF (Graphics Interchange Format) is the oldest format still in use, primarily kept alive by its support for animation. For still images, GIF is inferior to PNG in both quality and compression, limited to 256 colors per frame. Converting to WebP for web delivery is the most impactful single optimization for image-heavy sites. Browser support for WebP is now essentially universal (Chrome, Firefox, Safari 14+, Edge). For cases where legacy Safari support is required, serving WebP via a picture element with a JPEG fallback provides the best result across all browsers.