Image Format Advisor
Find the best format for your image and where it will be used. Your image is actually saved as JPG, PNG, WebP and AVIF so you can compare real sizes.
Free · No upload · 100% on your device
Image Format Advisor
Choose an image, or drop it here.
JPG, PNG, WebP, AVIF, GIF, BMP · No size limit. Nothing is uploaded. You can also paste an image.
100% on your device
How to use Image Format Advisor
- Choose your image, or drop it on the page.
- Adjust the settings in the side panel. The preview updates as you go.
- Select “Compare formats”.
- Download the result. Your original file is left unchanged.
Private by design. Your files are processed in this browser tab and are never uploaded to KittySuite.
About Image Format Advisor
Choose where the image will be used. The advisor looks at transparency, the number of colours and whether it is a photo or a flat graphic, then really encodes it in each format at a sensible size. The recommendation explains the trade-off: compatibility, size, quality and transparency. Every candidate can be downloaded directly.
Processing happens in this browser tab: your images are never uploaded, and the result is ready as soon as you download it. Large photos take a moment longer on phones; nothing is limited by size.
Image Format Advisor: frequently asked questions
Which image format should I use for a website?
Choose “Website” and the advisor saves your image as JPG, PNG, WebP and AVIF, then recommends one based on the real sizes, transparency and whether it is a photo or a flat graphic.
Are the sizes estimates?
No. Your image is actually encoded in each format, so the sizes shown are the files you would download.
Can I download the recommended version?
Yes. Every candidate can be downloaded directly, not only the recommended one.
Does it consider where the image will be used?
Yes. Choose website, social media or messaging, email attachment, print, archive or app asset, and the trade-off between compatibility, size and quality changes accordingly.