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What DPI means, and how to get a 300 DPI image
Why DPI changes print size and not quality, how large your photo can print, and how to set 300 DPI without re-compressing it.
New
Tool
PNG to ICO
Make .ico files for favicons, Windows shortcuts and apps. Choose which sizes go inside, from 16 to 256 pixels; each is resized separately from your image, so the small ones stay crisp.
Drop images here
or
You can also paste an image with Ctrl+V (⌘V on a Mac).
Your images stay on your device. Nothing is uploaded.
How to convert PNG to ICO
- Choose or drop your PNG, JPG or SVG images.
- Tick the icon sizes to include. 16, 32, 48 and 256 cover Windows and every browser.
- Select “Convert to ICO” and download the icon.
Private by design
Most online image tools upload your pictures to their servers. This one doesn’t: PNG to ICO runs entirely in your browser, so family photos, IDs, screenshots and client work never leave your device. It’s free, with no watermark and no limit on how many images you process, and you don’t need an account.
Questions
Which sizes should an ICO file contain?
For a website favicon, 16, 32 and 48. For a Windows app or shortcut icon, 16, 32, 48 and 256. Extra sizes make the file bigger without much benefit.
Is transparency kept?
Yes. Every size keeps the transparent areas of your image.
Is an ICO all my website needs?
An ICO covers browser tabs and bookmarks. For home-screen icons on phones as well, use the Favicon Generator, which makes the whole set along with the HTML.
Are my images uploaded?
No. Every tool runs in your web browser, so your images are read, changed and saved on your own device and never sent to LabAnvil or anyone else. Once the page has loaded, the tools even work offline.
Is it free? Do I need an account?
Free, with no watermark, no daily limit, no account and no cap on file size beyond what your device's memory can handle.
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