Free PNG to ICO converter — generate .ico favicon files directly in your browser. Choose the sizes you need (16×16, 32×32, 48×48…), convert your PNG instantly with no upload and no sign-up required.
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Convert PNG to ICO favicon format for free. Multi-resolution icons, no upload. Works in your browser instantly. Whether you need this for personal projects, professional work, or quick one-off tasks — our browser-based tool handles it instantly with no installation, no signup, and no file uploads to external servers. Everything runs locally in your browser for maximum speed and privacy.
Converting images for websites, social media, or e-commerce platforms that require specific formats. Preparing photos for email attachments when recipients can't open the original format. Batch-converting a photo library to a universally compatible format. Optimizing images for web performance by switching to more efficient formats. Creating assets for graphic design projects that require specific file types. Converting screenshots or exports for documentation and presentations.
All processing happens entirely in your browser — no files are uploaded to any server, ensuring complete privacy. Uses Canvas API and WebAssembly for fast image processing. Supports JPEG, PNG, WebP, GIF, BMP, TIFF, and SVG input formats. Preserves EXIF metadata (camera, date, GPS) when applicable. Handles images up to 100 megapixels without quality degradation. Batch processing available for multiple files. Output quality is configurable — balance between file size and visual fidelity.
Drag and drop your PNG file into the converter above, or click the upload area to browse. For best results, use a square PNG image (256×256 or larger) with a transparent background.
Choose which sizes to embed in your ICO file. Common choices include 16×16 for browser tabs, 32×32 for taskbars, and 48×48 for Windows shortcuts. Select multiple sizes to create a multi-resolution favicon.
Click download to save your .ico file. It contains all selected sizes in a single file, ready to be added to your website or application. Simply place it as favicon.ico in your site's root directory.
The ICO (Icon) format is a container file format originally developed by Microsoft for storing icons on the Windows platform. Unlike regular image formats that hold a single image, an ICO file can contain multiple images at different sizes and color depths within a single file. This multi-resolution capability is what makes ICO uniquely suited for favicons and application icons.
When a browser or operating system needs to display your favicon, it selects the most appropriate size from the ICO file. A 16×16 version is used in browser tabs, a 32×32 version for taskbars, and larger sizes for desktop shortcuts or high-DPI displays. By bundling all sizes into one .ico file, you ensure your icon always looks sharp regardless of where it appears.
Quick & easyOur PNG to ICO converter operates entirely within your browser using the HTML5 Canvas API. When you upload a PNG image, it is processed locally on your device — no files are sent to any server or cloud service. The conversion happens in real time without any network requests.
This means your logos, brand assets, and design files remain completely confidential. Whether you are preparing a favicon for a client project or converting proprietary icons, you can trust that your files never leave your machine. There are no uploads, no server logs, and no data stored anywhere.
100% browser-basedEverything you need to know about our png to ico converter