PNG to ICO
Turn a PNG logo into an ICO file with 16, 32 and 48 pixel icons, ready to use as a website favicon.
PNG to ICO converter for website favicons
The ICO format is what browsers have looked for since the earliest days of favicons. Unlike a PNG, one ICO file can hold several sizes of the same picture, and the browser picks whichever it needs. This PNG to ICO converter builds that file for you with 16, 32 and 48 pixel icons.
It's a single-step job: drop your logo, convert, download. There's no signup, and the whole process runs on your device.
How to convert PNG to ICO
Takes about a second. Only one file at a time, since each ICO is built from a single picture. To make icons for several sites, run the converter once per logo.
- 1
Pick a square PNG
Choose a clean, square PNG of at least 256 × 256 pixels, ideally with a transparent background.
- 2
Convert to ICO
Press the button. Your image is scaled to 16, 32 and 48 pixels, and all three are packed into one file.
- 3
Save and rename if needed
Download the file, rename it favicon.ico, and place it in the root folder of your website.
What makes a good source PNG
- Square shape. The converter won't crop for you, so a wide logo ends up as a small strip in the middle of the icon.
- At least 256 pixels. Scaling down from a large image gives a sharper 48-pixel icon than scaling from a small one.
- Transparent background. It lets the icon sit neatly on any tab color. If yours has a white box around it, remove that first.
- Bold, simple artwork. At 16 pixels, only the main shape survives. A letter or a symbol reads far better than a logo with a wordmark.
If your PNG is rectangular, the crop option in Resize Image can square it up in a moment.
Where each icon size is used
| Size | Used for |
|---|---|
| 16 × 16 | Browser tabs and bookmark lists on standard screens |
| 32 × 32 | Tabs on high-resolution screens, Windows taskbar pins |
| 48 × 48 | Windows site shortcuts, and the size Google can use in search results |
Do you need more than favicon.ico?
An ICO alone covers browsers, but iPhones and iPads look for a separate Apple touch icon when someone adds your site to the home screen. To get everything in one go, use the favicon generator, which also makes individual PNG sizes.
Your logo might not be a PNG at all. JPG to ICO and WEBP to ICO do the same job for those formats, and ICO to PNG extracts the largest image from an existing icon.
Why your new icon may not appear right away
Browsers hold on to favicons much longer than they do other images, so you can upload a new file and still see the old icon for days. To check your work, open the site in a private window. For a stubborn case, add a version to the link tag's address, such as favicon.ico?v=2. Search engines update on their own schedule, and it can take several weeks for the new icon to appear in results.
Private conversion
The ICO is created in your browser. Nothing is uploaded, nothing is stored, and there's no watermark or limit.
More Tools
Every tool is free, private and runs in seconds.
Image Tools
48 Compress Image JPEG · PNG · WEBP · GIF · BMP · TIFF · AVIF · HEIC Resize Image Exact px or % Blur Image Gaussian & motion
Convert to JPG
JPGConvert to PNG
PNGConvert to WEBP
WEBPConvert to AVIF
AVIFConvert to TIFF
TIFFConvert to GIF
GIFPDF Tools
12 Compress PDF Shrink for email & web Merge PDF Combine multiple files Image to PDF Images → single PDF PDF to Image Extract as PNG/JPG PDF to PowerPoint Pages → PPTX slides JPG to PDF Photos → PDF pages Word to PDF DOCX → PDF Excel to PDF XLSX → PDF table HTML to PDF Web page file → PDF PDF to JPG Pages → JPEG PDF to Word Extract text to DOCX PDF to Excel Tables → XLSX
Frequently asked questions
Drop your PNG on this page and press Convert to ICO. You'll get a single .ico file containing 16, 32 and 48 pixel versions of your image, with transparency kept.
16 × 16, 32 × 32 and 48 × 48 pixels. These cover browser tabs, bookmarks, taskbars and Google's favicon requirements. Browsers pick the size they need automatically.
Yes. Transparent areas in the PNG stay transparent in every icon in the ICO, so the favicon looks clean in light and dark browser themes.
It's scaled to fit inside a square without being cropped or stretched. The leftover space on two sides is transparent. To fill the whole icon, crop the PNG to a square first.
It will work, but the largest icon is 48 pixels. Windows uses 256-pixel icons for large views, so a program's icon may look soft at big sizes. This converter is best suited to favicons.
This page gives you a single ICO file. The favicon generator gives you a full ZIP: the ICO, 16 and 32 pixel PNGs, and an Apple touch icon for iPhones.
Modern browsers accept PNG favicons through a link tag, so yes. Keeping a favicon.ico in your site's root folder is still worthwhile, though, because some tools and older browsers ask for that exact file by default.
Upload it to your site's root folder as favicon.ico, then add a link tag to the head of your pages: link rel=icon href=/favicon.ico. Do a hard refresh to see it.
No. Your browser creates the ICO on your device, so your artwork isn't sent anywhere.
Yes. ICO is the oldest favicon format and every browser reads it. Each icon inside is stored as a compressed PNG, a method supported since Windows Vista.
Blog
Guides and tips from the blog
Short, practical articles to get more out of ImgTask and your image or PDF workflow.
