Image to icon converter

Universal ICO Converter

Convert PNG, JPEG, WEBP, SVG, HEIC, GIF, and BMP into multi-resolution .ico files with custom shapes and backgrounds.

Drag & Drop your image here

or click to browse your computer

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Included Resolutions

Icon Customization

Transparent Background

Image Padding 0%

Rounded Corners 0%

Compilation Complete!

High-resolution customized binary ready.

Download .ICO Package

Why Use This ICO Converter?

Engineered for speed, privacy, and full format standard compliance.

100% Private

Processing happens completely inside your web browser using HTML5 Canvas & DataView. No image data is ever transmitted to a remote server.

Multi-Resolution

Combine up to 7 standard icon dimensions (16px to 256px) into a single valid multi-page ICO container for crisp scaling on all screens.

Shape Customizer

It converts the image directly into a Windows icon, Transform standard logos into iOS-style squircles or circular badges directly via the style settings.

Alpha Channel Transparency

Full 32-bit color depth support preserves crisp, anti-aliased rounded edges, dropshadows, and transparent PNG backgrounds.

How It Works

Three easy steps to produce production-ready ICO files.

1

Upload Image

Select any image format (PNG, JPG, WEBP, SVG, HEIC, GIF, or BMP) from your desktop or mobile device.

2

Choose Dimensions

Toggle desired resolutions ranging from 16x16 (browser tab favicon) up to 256x256 (Windows Desktop icon).

3

Download .ICO

Click compile. The browser packs your PNG icons into a binary stream and gives you an instant download link.

Frequently Asked Questions

Click any question below to expand or collapse answers.

What is a multi-resolution .ICO file?

An .ico file is not just a standard image—it is an archival header file containing multiple sub-images at different sizes (such as 16x16, 32x32, and 64x64). Windows and web browsers pick the exact resolution appropriate for the screen pixel density without ugly fuzzy scaling.

Which sizes should I select for a website favicon?

For a website, selecting 16x16 (Browser tabs), 32x32 (Taskbar/Shortcuts), and 48x48 (Windows desktop) guarantees ideal browser compatibility across desktop operating systems.

Are my private photos uploaded to server logs?

No. The entire process runs inside your local browser tab via HTML Canvas and JavaScript DataView binary encoding. No image data is ever uploaded or sent over any network connection.

How are Apple HEIC photos converted?

When an Apple `.heic` photo is selected, the application dynamically loads the lightweight heic2any library in real-time to convert the image to standard PNG bytes entirely inside your browser memory before generating the final ICO.

© ICO Converter. Pure client-side image processing utility.

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