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 ICO Converter
Make a favicon or Windows icon without uploading: one .ico with all the common sizes.
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 JPG
Short answer
Drop a PNG (or JPG) above, keep ICO selected and download one .ico file that holds the image at 16, 32 and 48 pixels, plus 256 pixels when your image is at least that big. Each size is stored as a PNG inside, so transparency is kept. Images that aren't square are centred on a transparent square. Nothing is uploaded.
Updated
What size should my image be?
Square and at least 256 × 256 pixels gives the sharpest result, and adds the 256 px size used by Windows for large icons. Smaller images still work: they get the 16, 32 and 48 px sizes.
Is this the right file for a website favicon?
Yes. Put it at the root of your site as favicon.ico, and browsers find it on their own. Current browsers also accept a PNG favicon through a <link rel="icon"> tag, but the .ico with several sizes is the most widely recognised.
Will it work as a Windows icon?
Yes. Each size inside is stored as a PNG, which Windows reads in icon files, so desktop shortcuts get a sharp icon with a transparent background.
What about JPG to ICO?
It works the same way: drop a JPG instead. JPG has no transparency, so the icon keeps the JPG's background.
Questions
Why is my icon blurry at 16 px?
16 pixels is tiny, so detail disappears. Simple shapes and strong contrast work best; very detailed images become a blur at that size.
Can I choose the sizes?
Not yet. Every .ico holds 16, 32 and 48 px, plus 256 px when the image is at least 256 px.
Does it keep transparency?
Yes. Each size is stored as a PNG inside the .ico, transparency included.
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.