🌟 ICO Converter
Create ICO favicon files from PNG or JPG free. Standard 16x16, 32x32, 48x48 sizes. Browser-based, no upload, instant download.
🌟 ICO Converter
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About the ICO Converter Tool
The .ico format is what browsers have historically looked for at /favicon.ico, and it remains the most broadly compatible choice — particularly for older Internet Explorer and Edge versions, and for Windows shortcut icons. Unlike PNG, an ICO file can contain several resolutions inside a single file, letting the operating system or browser pick whichever size fits the context.
This tool takes a square PNG or JPG and produces a proper ICO at the standard favicon sizes. Everything is generated in your browser, so your source image is never uploaded. Start from the largest, cleanest square version of your logo you have — favicons are rendered tiny, and detail that reads well at 512px often turns to mush at 16px.
How to Use ICO Converter
- Select a square PNG or JPG. A source of at least 256×256 gives the best results.
- Choose the icon sizes you want embedded. 16×16, 32×32, and 48×48 cover almost every use.
- Press Convert to generate the ICO.
- Download the file, rename it favicon.ico, and place it in your website root directory.
When to Use This Tool
- Creating a browser tab favicon for a website
- Producing a Windows application or shortcut icon
- Generating a bookmark icon that displays correctly across older browsers
- Building a multi-resolution icon file from a single logo source
- Replacing a blurry favicon that was scaled from a low-resolution source
Things Worth Knowing
- Use a square source image. Non-square inputs will be distorted or cropped.
- Simplify your design for small sizes. Fine text and thin lines disappear entirely at 16×16 pixels.
- Modern browsers also accept PNG favicons declared via , but /favicon.ico remains the most reliable universal fallback.
Quick Facts
| Tool name | ICO Converter |
| Category | Image Tools |
| Price | Free — no account, no trial, no watermark |
| Where it runs | Entirely in your browser (client-side) |
| Files uploaded | None — your data never leaves your device |
| File size limit | None imposed; limited only by device memory |
| Works offline | Yes, once the page has loaded |
| Platforms | Windows, macOS, Linux, Android, iOS |
Frequently Asked Questions
What size should my favicon be?
Include 16×16 and 32×32 at minimum — those cover browser tabs and bookmark bars. Adding 48×48 helps with Windows shortcuts and some taskbar contexts.
Where do I put the favicon.ico file?
In the root directory of your website, so it is reachable at yoursite.com/favicon.ico. Browsers check that path automatically. You can also declare it explicitly with in your HTML head.
Why does my favicon look blurry or muddy?
Almost always because the source was too small or too detailed. Start from at least 256×256 and simplify the design — at 16 pixels wide you have room for a shape or a letter, not a full logo.
Can ICO files have transparency?
Yes. ICO supports an alpha channel, and transparency from a PNG source is preserved.