PNG to ICO
Create ICO icon files from any PNG image
What the PNG to ICO Converter Does
An ICO file is the classic icon format used by Windows and, for many years, the standard way to give a website its favicon, the small image in a browser tab. The PNG to ICO Converter turns a PNG image, such as your logo, into an ICO file you can use as a site icon or application icon. Upload the artwork, convert it and download a file that is ready to place in your website or project.
It is useful for web designers, bloggers, shop owners, developers and anyone who has ever opened a browser tab and noticed that their own site had a blank or default icon.
Why Your Site Needs a Proper Icon
- Brand recognition. A small, clear icon helps people find your tab among dozens of open pages and recognise your bookmark at a glance.
- Trust and polish. A missing favicon looks unfinished, and a sharp one signals care.
- Search results. Google shows site icons next to mobile search results, and its favicon guidelines ask for a square image whose size is a multiple of 48 pixels.
- Desktop shortcuts and apps. Windows programs and shortcuts use ICO files for their icons.
- Browser compatibility. Browsers have long looked for a file called favicon.ico in the root of a site, so having one prevents unnecessary errors in your server logs.
How to Use the PNG to ICO Converter
- Prepare a square PNG of your logo or symbol. Simple shapes and bold colours work best at tiny sizes.
- Upload the image with the upload button or drag it into the box.
- Run the conversion.
- Download the ICO file.
- Upload it to your site, normally to the root folder as favicon.ico, or reference it in your page's head section.
- Clear your browser cache and reload to confirm the new icon appears. Browsers cache favicons stubbornly.
Designing an Icon That Works at Small Sizes
An icon may be displayed at 16 by 16 pixels, which leaves no room for detail. A few design habits make a big difference:
- Start square. A non-square image will be stretched or cropped. Use a square canvas and centre the artwork.
- Start large. Begin with an image of at least 256 by 256 pixels so the converter has enough information to scale down well.
- Simplify. Drop long text and fine lines. A single letter, a symbol or a simplified version of your logo reads better.
- Use strong contrast. Make sure the icon is visible on both light and dark browser themes.
- Keep transparency in mind. A transparent background lets the icon sit cleanly on any tab colour, but check that it does not vanish on dark themes.
Understanding Icon Sizes
An ICO file is a container that can hold several image sizes in one file, commonly 16, 32, 48 and 256 pixels. This allows the operating system or browser to choose the best size for each situation instead of scaling one image up or down. Modern websites also provide PNG icons for phones and tablets alongside the classic ICO, and MDN's overview of the favicon explains how browsers look for them. A sensible setup is an ICO for broad compatibility, plus larger PNG versions for devices that prefer them.
Adding the Icon to Your Website
If you place favicon.ico in the root directory of your site, many browsers will find it automatically. For more control, add a link element to the head of your pages that points to the file. Content management systems such as WordPress usually offer a site icon setting in the theme or customiser, where you can upload your image directly. After publishing, test the page in several browsers, and test again on a phone, because each one may handle icons slightly differently.
How It Compares With Other Methods
Image editors can export ICO files if a plugin is installed, but the steps are not obvious to beginners. Dedicated favicon packages are fantastic for generating many sizes at once, though they can feel heavy if you only need one file. The PNG to ICO Converter on WebTOOLkt is free and simple: upload, convert, download. Pair it with the other image tools on the site to prepare your artwork first, and with the SEO tools to check the finished page.
Related WebTOOLkt Tools
- ICO to PNG to extract a PNG from an existing icon file.
- ICO Converter for other icon conversion tasks.
- Image Cropper to crop your logo to a perfect square first.
- Image Resizer to resize your artwork before converting.
- JPG to ICO if your logo is stored as a JPG.
- Meta Tag Generator to prepare the rest of your page's head section.
Useful External Resources
Frequently Asked Questions
Why is my new favicon not showing?
Browsers cache icons for a long time. Clear the cache, reload with a hard refresh or open the site in a private window to see the latest version.
What size should my source PNG be?
A square image of at least 256 by 256 pixels gives the best starting point.
Do I still need an ICO file in 2026?
It is no longer the only option, but it remains the safest fallback because every major browser understands it.
