This switches an image between PNG, JPEG, and WebP right in your browser. Each format is good at something different. PNG keeps transparency, JPEG is small for photos, WebP often gets you both. Being able to switch quickly means you can pick whichever one actually fits where the image is going.
How to use it
- Upload the image you want to convert.
- Pick PNG, JPEG, or WebP from the dropdown.
- The preview updates automatically.
- Switch formats again anytime to compare.
- Click download once you're happy with it.
When it helps
- Turning a PNG screenshot into a JPEG to shrink it before uploading somewhere with a strict size limit.
- Converting a JPEG to PNG when you need to add transparency in an editor.
- Switching images to WebP to take advantage of smaller file sizes on a website.
- Making sure an image works with an older tool that doesn't support WebP.
- Standardizing a mixed folder of images into one format before archiving it.
Good to know
- Use PNG for graphics with transparency, sharp edges, or text, since it doesn't add compression artifacts.
- Use JPEG for photos where a small file matters more than perfect detail.
- Use WebP when the site or app you're using supports it, since it often beats JPEG at a similar quality.
- If file size matters most and some quality loss is fine, compare JPEG and WebP output at similar settings, since WebP often wins for photos specifically.
- If you're not sure which format a client wants, ask, but if you have to guess for a photo heavy page, WebP with a JPEG fallback is a common modern default.
Questions
Will converting a JPEG to PNG bring back transparency?
No. Once transparency is lost in a JPEG, converting to PNG afterward won't recover it, since JPEG never stored that information in the first place.
Does converting formats reduce quality?
Converting to PNG is lossless, so no quality is lost. Converting to JPEG applies lossy compression, and doing that repeatedly can gradually degrade quality further.
Does WebP work everywhere?
All modern browsers support it, and most current tools do too. Some older software might not open it, which is worth checking first.
Can I convert an animated GIF with this?
This processes static images through the canvas element, so it will only capture a single frame of an animated GIF rather than preserving the animation.
Will converting to JPEG remove transparency?
Yes, JPEG doesn't support transparency at all, so any transparent area gets filled with a solid color, usually white.
Does converting to WebP always produce a smaller file than JPEG?
Usually, but not always. It depends on the specific image. For most photos WebP comes out smaller at similar quality, though it's worth spot checking on images that matter.