JPG, PNG, WebP or AVIF: which should you choose?
Choose an image format for photos, transparent graphics and everyday sharing, with the limits that matter.
Start with the destination
Check which formats your website, messaging app or upload form accepts before converting. A smaller AVIF is not helpful when the destination only accepts JPG. Keep your original and make a separate copy for each use.
JPG for compatible photos
Use JPG when you want a familiar photo format. In this converter, quality 85 to 90 is a useful starting point, then compare the downloaded image. Lower settings can introduce visible blocks or blur around fine detail. JPG does not support transparency, so select the background color before converting a transparent source.
PNG for pixel detail and transparency
PNG is a useful choice for screenshots, diagrams and graphics with transparent edges. It saves decoded pixels without another lossy compression step. Converting a JPG to PNG does not restore missing detail, sharpen a blurred picture or remove its background. Photo-sized PNG files may be substantially larger.
WebP and AVIF for web delivery
These outputs offer quality controls and transparency. Try WebP quality 80 to 90 or AVIF 50 to 70 as starting points, not equivalent quality scores. Compare file size and appearance at the final display size. AVIF can take longer to encode, especially on a phone. File-size savings depend on the image and are not guaranteed.
When the other formats matter
Use ICO for a single website icon up to 256 pixels. GIF export here makes a still image with no more than 256 colors. BMP and TIFF outputs are uncompressed and are usually poor choices for reducing file size. SVG input is rasterized into pixels; this tool does not trace a photograph into vector shapes.