🖼️ What is a PNG File?

PNG (Portable Network Graphics) is a popular image format that supports lossless compression and transparency. It is widely used for web graphics, logos, and icons because it preserves sharp edges and transparent backgrounds.

🔲 What is an ICO File?

ICO is the standard icon file format used by Windows for application icons, desktop shortcuts, taskbar icons, and browser favicons. ICO files can contain multiple image sizes in a single file, allowing Windows to use the best size for each context.

💡 Why Convert PNG to ICO?

ICO files are required when creating custom icons for Windows applications, software installers, or website favicons. By converting your PNG logo or image to ICO format, you can use it as a custom icon on any Windows computer or as a favicon that appears in browser tabs.

📐 Which ICO Size Should I Choose?

Different use cases call for different ICO sizes. Here is a quick guide to help you choose:

16×16 — Browser favicon (tab icon) · 24×24 — Taskbar icons · 32×32 — Standard desktop icon (most common) · 48×48 — Windows Explorer icons · 64×64 & 128×128 — High DPI displays · 256×256 — Windows Vista and above, large icon view

🔒 Is My File Safe?

Yes — completely. This converter works entirely inside your browser using JavaScript and the HTML Canvas API. Your PNG file is never uploaded to any server. Once you close the page, no trace of your file remains. This makes it one of the safest online converters available.

❓ Frequently Asked Questions

What is a PNG file? ▼
A PNG file is a popular image format that supports lossless compression and transparency. It is commonly used for web graphics, logos, and icons because it preserves image quality and supports transparent backgrounds.
Why would I want to convert PNG to ICO? ▼
ICO files are used for icons in Windows applications, desktop shortcuts, and browser favicons. Converting your PNG image to ICO allows you to create custom icons for applications or add a custom favicon to your website.
Are there any file size limits? ▼
This converter does not impose file size limits since everything is processed locally in your browser. However, very large PNG files may take a moment to process depending on your device's performance.
What happens to my uploaded files? ▼
Your files are processed entirely in your browser using JavaScript — they are never uploaded to any server. Once you download your ICO file or close the page, your PNG file is no longer accessible by the tool.
Which ICO size is best for a favicon? ▼
For browser favicons, 32×32 pixels is the most recommended size and works on all modern browsers. Some older browsers may use 16×16, but 32×32 is the safe standard choice.