Convert PNG to ICO favicon

Generate 32x32 pixel Windows favicons and icon packs from transparent PNG files locally in browser memory.

100% Client-Side

Drag & drop your PNG files or Browse Files

Press Ctrl + V to paste a screenshot directly

Supports
PNG format
Operations
100% Offline
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Everything about converting PNG to ICO

ICO files are standard icon container files used by web browsers and operating systems to render site favicons. Creating a favicon from a transparent PNG makes your web platform immediately recognizable.

PNG vs ICO: What is the difference?

PNG: Optimized for specific file properties client side.
ICO: Lossless target formats operating directly in browser cache.

Frequently Asked Questions

What size should my PNG be for ICO favicon conversion?
We recommend a square PNG (such as 32x32, 48x48, or 64x64 pixels). Pixiva automatically scales and packages the PNG into a standard 32x32 pixel ICO favicon header.
Does the generated ICO support transparency?
Yes, the ICO encoder packages the PNG with all alpha channel transparency settings intact, making it perfect for web favicons.