Convert to ICO
Convert any image to an ICO icon for free: PNG, JPG, SVG, or WebP, with every size from 16 to 256 pixels inside. For a favicon or a Windows icon, with no upload.
Drop images to convert them to ICO
Add one or as many as you like. They're converted on your device, so nothing is uploaded.
PNG, JPG, WebP, HEIC, AVIF, SVG, BMP, and GIF. As many as you like, or a whole folder.
How to convert an image to ICO
Add a logo or picture and download an ICO file that holds it at 16, 24, 32, 48, 64, 128, and 256 pixels, so a browser tab or Windows picks the size it needs. SVG logos are drawn sharp at every size. It runs in your browser, so your files stay on your device.
Step 1
Add your pictureA square PNG or SVG logo at least 256 pixels wide works best.Step 2
Pick the sizesAll of them are ticked, from 16 to 256 pixels.Step 3
Download the ICOUse it as favicon.ico or a Windows icon.
What to expect
- Supported inputs
- PNG, JPG, SVG, WebP, HEIC, AVIF, BMP, and GIF files.
- What happens
- The picture is scaled to each size and stored as a PNG inside the ICO, with transparency kept. A picture that isn't square sits in the middle of a transparent square.
- Limits
- ICO holds up to 256 × 256 pixels. Sizes larger than the picture are left out, except for SVGs, which are drawn at every size.
Private by design
Your images stay on your device
Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.
- No upload
- No signup
- No watermark