Convert ICO to PNG Online
Extract the highest-resolution PNG from any ICO file. Free, in your browser, no file uploads.
.webp, .png, .jpg · up to 50 MB
Use cases
ICO to PNG: recover the original icon at full resolution
Brand asset recovery
Extract the logo or icon from any app or website to reuse in design materials without quality loss.
Transparency preserved
The ICO alpha channel is kept intact in the PNG. Transparent backgrounds ready for any context.
100% private
Conversion happens in your browser. Your file is never uploaded to any server.
Maximum resolution
The largest available image inside the ICO container is automatically extracted.
How it works
Three steps, no hassle
Upload your ICO file
Drag or select your .ico file. Up to 50 MB, no signup. Works with favicon.ico, app icons, and any standard ICO file.
Automatic best-resolution extraction
The converter detects all resolutions embedded in the ICO (16×16, 32×32, 48×48, 256×256) and extracts the largest available image.
Download your PNG
Get a crisp PNG with transparency preserved. Ready to use in design tools, presentations, or as a brand asset.
FAQ
Got questions?
An ICO file is a container that can include multiple resolutions simultaneously: 16×16 (browser favicon bar), 32×32 (Windows desktop), 48×48 (large desktop icons), 64×64, 128×128, and up to 256×256 pixels (introduced with Windows Vista for high-definition icons). The technical spec doesn't prevent custom resolutions, though the sizes listed are most common. When converting an ICO to PNG, this converter automatically extracts the highest-resolution image available inside the container.
Yes. PNG supports an alpha channel (8-bit transparency), and modern ICO files also store transparency via alpha channels or 1-bit masks in the classic ICO format. Conversion fully preserves the alpha channel: transparent areas in the original icon remain transparent in the resulting PNG. This is especially important for logos and app icons that need to be overlaid on different background colors.
It depends on what the original designer included in the file. Most website favicon.ico files contain 16×16 and 32×32 resolutions. However, many modern sites also include 48×48 or even 256×256 for desktop bookmarks and shortcuts. Desktop application icons (Windows, macOS via conversion) typically contain the full 256×256 resolution. This converter always extracts the highest available resolution.
This converter extracts the highest-resolution image from the ICO to give you the best quality asset. If you need to extract each embedded resolution as a separate PNG file, command-line tools like ImageMagick (command: convert favicon.ico -coalesce output_%d.png) or IcoFX can fully decompose an ICO layer by layer.
favicon.ico is the icon file that web browsers look for at the root of every website (https://example.com/favicon.ico) to display in the browser tab, bookmarks bar, and history lists. The ICO format was created by Microsoft for Windows 1.0 in 1985 and became the favicon standard when Internet Explorer 5 introduced tab icon support in 1999. All modern browsers read favicon.ico today. Many companies need to recover the original PNG from their favicon to use in presentations, documents, or as a starting point for redesigning their visual identity.
The ICO format has very limited support outside of Windows and web browsers. Most image editors, design tools (Figma, Sketch, Canva), social media platforms, word processors, and print services do not accept ICO. By converting to PNG you get a universally compatible file you can use anywhere: PowerPoint presentations, Word documents, Figma panels, social media profiles, or print materials. PNG also preserves transparency, unlike JPG.
Convert ICO to PNG: extract favicons and icons at full resolution
The ICO format was designed by Microsoft for Windows 1.0, released on November 20, 1985. Originally conceived to store the small desktop icons of Windows (16×16 and 32×32 pixels), ICO became the standard icon format in the Windows ecosystem over the following decades. Its web relevance arrived in 1999 when Microsoft Internet Explorer 5 introduced favicon support: the browser would automatically look for a file named favicon.ico at the web server root and display it in the address bar. The standard was formally adopted by the W3C as a recommendation in 2003. Today favicon.ico remains the file all modern browsers look for by convention, now coexisting with more modern formats like SVG and PNG served via HTML link tags. An ICO file is technically a container: it can store multiple images at different resolutions within a single file. Standard resolutions are 16×16, 32×32, 48×48, and 256×256 pixels, though the format allows custom resolutions. Since Windows Vista (2007), the ICO format supports embedded compressed PNG images for the 256×256 resolution, improving visual quality on high-density displays.
The need to convert ICO to PNG arises in multiple professional scenarios. The most frequent is brand asset recovery: when a company needs its logo in an editable format but only has the favicon.ico from the website, extracting the PNG is the starting point for reconstructing the visual identity. Graphic designers working in Figma, Sketch, or Adobe XD cannot directly import ICO files, so they need the PNG to incorporate the icon into their projects. Marketing teams creating presentations in PowerPoint or Google Slides need the icon in PNG to insert it over different background colors without ugly white borders. IT administrators documenting software inventories need application icon captures in a universally readable format. In all these cases, the ICO to PNG converter solves the problem in seconds, with no additional software and without compromising file privacy. Reverse-engineering a favicon.ico is also a useful technique for competitive analysis in branding and design: examining the resolutions and visual style embedded in a competitor's favicon reveals details about the age and quality of their design system.
From a technical standpoint, converting ICO to PNG involves reading the ICO container, identifying the highest-resolution image available, decoding its pixel data (either in uncompressed BMP format or compressed PNG, depending on the ICO version), and encoding it into a new standard PNG file. The alpha channel — which determines each pixel's transparency — is fully preserved during this process. Convertir.ai performs this operation entirely in the user's browser using the HTML5 Canvas API: the ICO file never leaves the user's device, there is no data transmission to external servers, and conversion is virtually instantaneous even for ICOs with multiple high-resolution layers. Unlike online tools that require uploading the file to a server (implying wait times, size limits, and privacy risks), local processing guarantees total privacy and maximum speed. The browser Canvas API handles ICO decoding natively, making this a zero-dependency, zero-latency solution accessible directly from a URL with no installation required.