FAVICON GENERATOR • 100% IN-BROWSER PRIVACY

Convert PNG to ICO Favicon & Icons

Create multi-layer Windows .ico and website favicon.ico files containing standard 16x16, 32x32, 48x48, and 256x256 resolutions with transparency.

Select PNG Image Files

Drag & drop PNG files here, or click to browse from device

✓ Zero File Size Limits ✓ 100% Client-Side Privacy ✓ Batch Conversion

How to Convert PNG to ICO Online Free

Upload Logo PNG

Choose a square PNG image with transparent background (recommended 512x512 px or higher).

Automatic Multi-Layer Scaling

Our engine renders crisp icon sub-frames from 16x16 to 256x256 into a unified Windows ICO binary.

Download favicon.ico

Download your ready-to-use favicon.ico for your website, WordPress, or Windows software app.

PNG vs ICO: Format Specifications

Understand the technical differences, compression efficiency, and optimal use cases for PNG and ICO.

Feature / Specification	PNG Format	ICO Format
Multi-Resolution Container	Single resolution per file	Multi-layer (16px, 32px, 48px, 64px, 128px, 256px in one file)
Browser Favicon Compatibility	Supported in HTML <link>	Native default favicon standard for all legacy and modern browsers
Windows OS & Desktop Support	Preview only	Native executable (.exe), folder, and shortcut application icon format
Alpha Channel Transparency	Yes (PNG-32)	Yes (32-bit ARGB multi-frame transparency)

Why Use NeedConvert for PNG to ICO?

100% In-Browser Privacy

Your PNG images are processed entirely within your device browser RAM using HTML5 Canvas & WebAssembly. Zero files are uploaded to any remote server.

Instant Real-Time Conversion

No waiting in queue, no slow server network uploads. Conversions happen in milliseconds with multi-threaded hardware acceleration.

Lossless Pixel Precision

Maintain optimal color reproduction, sharpness, and metadata with configurable compression quality and alpha transparency options.

Frequently Asked Questions

Q: What resolutions are bundled into the generated ICO file?

Our generator packages 16x16, 32x32, 48x48, 64x64, 128x128, and 256x256 pixel frames into a single standard Windows ICO binary file.

Q: How do I use the generated favicon.ico on my website?

Simply place `favicon.ico` in the root directory of your website and include `<link rel="icon" type="image/x-icon" href="/favicon.ico">` in your HTML `<head>` tag.

Q: Will my PNG transparency be maintained in the ICO file?

Yes, our engine preserves full 32-bit alpha transparency across all icon frame resolutions.

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