ImgkeepWebP to JPG
Need a JPG for an upload form or a photo workflow? Choose JPG, add your WebP image and download the result. Transparent areas get a background colour; pick PNG when you need to keep transparency.
Read the WebP to JPG guidePNG to JPG Converter
Convert PNG to JPG without uploading, for smaller files. Your images stay on your device.
Choose your output
Selected output: PNG
PNG keeps transparency.
Leave blank to keep the original size. Smaller images are never enlarged.
Enter a whole number of pixels, like 1600.
Lower makes smaller files.
Used where an image is transparent.
Enter a colour like #FFFFFF.
Add your images
Drop images to convert to PNG
or paste an image (⌘V / Ctrl+V)
Up to 20 files · 50 MB each
Anonymous page views and conversion counts. No images, file names or sizes sent. Privacy
How local conversion works
Your images are converted by this page, on your device, with the same code as the Imgkeep extension. Nothing is uploaded. The site counts page views, and which formats were converted with how many files (for example "webp → jpg, 3 files"); it never sends image contents, file names or file sizes.
- Load this page, then turn off your Wi-Fi: converting still works, for every format except AVIF, whose encoder loads the first time you choose it.
- Open your browser's developer tools, choose the Network tab and convert a file: no request carries your image.
- The code is public: site/convert on GitHub, with a test that checks converting makes no network request and works offline.
Quick format guides
WebP to PNG
PNG is right for screenshots, graphics and images that need transparency. Convert a WebP to PNG when your next app needs it. Changing formats doesn't bring back detail the original already lost.
Read the WebP to PNG guideAVIF to JPG
Have an AVIF image another app won't open? Convert it to JPG in your browser and download the result. For transparent artwork, pick PNG so the background can stay transparent.
Read the AVIF to JPG guideMore: All formats · PNG to ICO
Short answer
Drop your PNG files above, keep JPG selected and download. JPG files are usually much smaller than PNG for photos. JPG has no transparency, so see-through areas get a background colour, white unless you pick another. Quality is 92 by default. Nothing is uploaded and there's no sign-up: everything runs in your browser.
Updated
How much smaller will it be?
It depends on the image. Photos usually shrink a lot; flat graphics with few colours can even grow. The converter shows the real size before and after for every file, so you can see which one you're getting.
When should I keep PNG?
For text, logos, screenshots and anything with sharp edges or a transparent background. JPG blurs sharp edges slightly and can't be see-through.
What happens to a transparent background?
JPG can't store transparency, so transparent areas get the background colour you pick above. White by default, but any colour works, for example to match the page you'll put the image on.
Can I resize at the same time?
Yes: set a maximum width before converting. Wider images are scaled down, keeping their shape; smaller ones are never enlarged.
Questions
Does PNG to JPG lose quality?
A little: JPG compresses, PNG doesn't. At the default quality of 92 it's usually invisible in photos, but sharp text and lines can look slightly soft.
Can I convert JPG back to PNG?
Yes, pick PNG in the menu above. It won't bring back detail the JPG already lost, but nothing more is lost.
How many files can I convert at once?
Up to 20 at a time, each up to 50 MB.
Save images straight from the web.
Use Imgkeep for Chrome or Edge to choose a format when you right-click an image: no file to convert afterwards.