ICO Converter – Free Online Favicon & ICO Maker | FreeToolSuite

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ICO Converter — Favicon & Icon Maker

Convert PNG, JPG or WebP images to ICO format online for free. Create multi-resolution ICO files for favicons, Windows app icons and taskbar icons — instantly.

✅ 100% Free🖥️ ICO Maker🌐 Favicon Ready📐 Multi-Size🔒 Private

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4.9 / 5 (4,627 ratings)

ICOICO Converter — Convert Now

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IMAGE

Source

▶ CONVERT

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ICO

Output

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Drop your image here

or click to browse — drag & drop supported

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——

📐 ICO Sizes to Include

Click sizes to toggle. Include multiple for a multi-resolution ICO file.

✓16×16

Tab favicon

✓32×32

Taskbar

✓48×48

Desktop

✓64×64

HiDPI tab

✓128×128

Large icon

✓256×256

4K / HiRes

⚙️ Output Quality

Quality — higher = sharper image, larger file85%

10% Smallest50%85% Recommended100% Max

🔧 Options

White Background FillFill transparent areas with white

Preserve Original DimensionsKeep exact source image dimensions

Strip EXIF MetadataRemove camera data and GPS location

Preparing…0%

🖼️ Reading image

🔧 Processing pixels

🎨 Converting format

🗜️ Optimizing output

✅ Finalizing

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Conversion Complete!

Your image has been converted to ICO.

—Original

—Output Size

—Saved

ICOFormat

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Multi-Size ICO

A single ICO file can contain multiple image sizes (16×16, 32×32, 48×48, 256×256) so Windows and browsers always pick the sharpest size for each context.

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Favicon Ready

Outputs favicon.ico compatible with all browsers, including older IE and Edge Legacy that require ICO for tab icons.

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Windows Icon Compatible

Generates ICO files compatible with Windows Explorer, taskbar, desktop shortcuts, and application icons (.exe, .dll).

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100% Private

Your image files never leave your device. All ICO generation runs locally in your browser.

⭐ User Reviews

4.9

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Based on 4,627 verified reviews · 99% recommend this tool

Chris B.

Yesterday

⭐⭐⭐⭐⭐

Made a multi-size favicon.ico from our logo PNG in 30 seconds. Includes 16×16 all the way to 256×256. Every browser shows it perfectly now.

ICO Converter

Sara M.

3 days ago

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I've tried five different ICO generators. This is the only free one that produces a proper multi-size ICO file without watermarks. Outstanding.

ICO Converter

Kai R.

1 week ago

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Used this to create the app icon for a Windows desktop app. The multi-resolution ICO with 48 and 256 included looked perfect in the taskbar and Explorer.

ICO Converter

Fatou D.

2 weeks ago

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Really easy to use. Click the sizes you want, upload your image, download the ICO. Would love a batch option for multiple icons but for favicon use it is perfect.

ICO Converter

📖 How to Use the ICO Converter

Upload Your Image

Drop a PNG, JPG or WebP image onto the upload area. For best results, use a square image (e.g. 512×512 or 1024×1024 PNG) with transparent background.

Select ICO Sizes

Choose which sizes to include in the multi-resolution ICO file. For a favicon, select 16×16, 32×32 and 48×48. For Windows app icons, add 256×256.

Set Background Options

For images with transparent backgrounds, optionally fill transparent areas with white (recommended for 16×16 at very small sizes).

Download ICO File

Click Generate ICO and download your favicon.ico or app icon file. Rename to favicon.ico and place in your website root for automatic browser detection.

🎯 Other Image Converters

Need a different format? All our converters are free, instant and 100% browser-based.

❓ Frequently Asked Questions

What is an ICO file?+

ICO (Icon) is a file format used by Windows and web browsers for icons and favicons. Unlike PNG or JPG, ICO files can contain multiple image sizes in a single file. When Windows or a browser needs an icon at a specific size, it picks the best-matching size from the ICO file for the sharpest result.

What sizes should I include in my favicon.ico?+

For a favicon.ico used in websites, include 16×16 (browser tab), 32×32 (tab, taskbar), and 48×48 (Windows taskbar, shortcuts). For maximum compatibility with older browsers and Windows pinned sites, adding 64×64 and 128×128 is beneficial. For Windows application icons, include 16×16, 32×32, 48×48, and 256×256.

What image format should I use as input?+

A square PNG with a transparent background produces the best ICO output. 512×512 or 1024×1024 PNG gives the converter enough resolution to downsample each size cleanly. JPG and WebP are also accepted but don't support transparency, which affects how the icon looks on colored backgrounds.

Is favicon.ico still needed in 2024?+

Yes. While modern browsers also support PNG favicons via link tags, favicon.ico is still important for: older browsers that only check for favicon.ico at the root URL, browser address bar icons, bookmarks in older browsers, Windows pinned site icons, and RSS readers. Including a favicon.ico ensures coverage across all scenarios.

What is the difference between a favicon and an app icon?+

A favicon appears in browser tabs and bookmarks — typically 16×16 to 32×32. A Windows app icon appears in Explorer, the taskbar and Start menu — typically 32×32 to 256×256. Both are stored as ICO files. Our tool generates multi-size ICO files suitable for both use cases.

How do I add a favicon to my website?+

Place your favicon.ico file in the root directory of your website. Most browsers automatically detect it at yoursite.com/favicon.ico. For additional control, add this to your HTML head tag: link rel='icon' href='/favicon.ico' type='image/x-icon'. For modern browsers, you can also provide a PNG version alongside the ICO.

Can I create an ICO from a non-square image?+

Yes, but the output will be cropped or letterboxed to fit the square ICO dimensions. For the best result, use a square source image. If your logo is rectangular, add transparent padding to make it square before uploading.

Is my image private when converting to ICO?+

Yes. All ICO generation runs in your browser using the Canvas API. Your files are never uploaded to any server. No data leaves your device.

🔗 Related Tools

More free tools for working with images and documents.

💡 Why Use Our ICO Converter?

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Multi-Resolution in One File

Most ICO tools output a single-size ICO. We generate true multi-resolution ICO files — one file, all sizes — so Windows and browsers always pick the sharpest version.

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The Only Favicon Format for All Browsers

PNG favicons work in modern browsers but not in older IE, some RSS readers, and address bar auto-detection. ICO works everywhere, guaranteed.

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Windows App Icon Ready

Our ICO output meets Windows Explorer, taskbar, shortcut and Start menu specifications — including the 256×256 ClearType size required for high-DPI displays.

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No Upload — Your Brand Assets Stay Private

Logo files are confidential. We process your ICO generation entirely in your browser. Your logo never touches a server.

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Instant Generation

No upload wait, no server queue. Your ICO file is generated and ready to download in under a second.

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100% Free, No Watermarks

Multi-size, multi-resolution ICO files — completely free. No watermarks embedded, no registration required, no file size limits.

📚 Complete Guide — ICO Converter

What Is ICO Format and Why Does It Matter?

ICO is a container format that stores one or more images at different sizes within a single file. When an application needs an icon — whether it is a browser displaying a favicon, Windows showing a desktop icon, or the taskbar displaying an app — it reads the ICO file and picks the most appropriate size for the rendering context.

Popular search queries: ico converter png to ico favicon generator create favicon ico free ico maker online

Standard ICO Sizes and Their Use Cases

Size	Use Case	Include for
16×16	Browser tab favicon, small toolbar icons	All websites
32×32	Browser address bar, Windows taskbar (100% DPI)	All websites
48×48	Windows desktop shortcuts, Explorer details view	Websites + Windows apps
64×64	High-DPI displays, larger toolbar buttons	Recommended for all
128×128	App store listings, larger Windows contexts	App icons
256×256	Windows Vista+ large icons, HiDPI, 4K displays	Windows app icons

How to Add a Favicon to Your Website

Place your favicon.ico in the root directory of your website (e.g. https://yoursite.com/favicon.ico). Most browsers automatically request this file. For explicit control, add to your HTML: <link rel="icon" href="/favicon.ico" sizes="any">. For modern browsers that support PNG favicons, add: <link rel="icon" href="/favicon.png" type="image/png"> alongside the ICO tag as a fallback chain.

Creating a Perfect Source Image for ICO Conversion

Start with a square PNG at 512×512 or larger with a transparent background. Design your icon at 100×100 units in your vector tool, then export at 512px. Avoid fine detail that disappears at 16×16 — test your design by viewing it at 16×16 in your image editor. Bold, simple shapes with high contrast work best at small sizes. If your brand mark is too complex for 16px, consider a simplified monogram or symbol version for the favicon.