FAQ — Favicon Generator
Quick answers to common questions about generating favicon.ico. Click a question to reveal the answer.
Upload a source image (SVG recommended) and select transparency or background options if available. Once processed, click the Download button to get your multi-resolution favicon.ico file. All processing happens entirely in your browser for absolute privacy.
No. All conversion happens in your browser using JavaScript. Your image never leaves your device unless you explicitly share it elsewhere.
Images larger than 10MB are automatically skipped to ensure optimal browser performance. For best results, we recommend keeping images under 10MB. Very large images (over 4000x4000 pixels) may also cause performance issues or fail to convert due to browser canvas limitations. The conversion happens entirely in your browser's memory.
While there's no strict dimension limit in our code, very large images (typically over 4000x4000 pixels or 16+ megapixels) may fail to convert due to browser memory limitations. Most modern browsers can handle images up to about 4096x4096 pixels, but performance may be slow for extremely large images. If you have very high-resolution images, consider resizing them first or using a desktop image editor.
PNG is a lossless format, so the quality of the converted image will be preserved. However, since JPG is a lossy format, any artifacts present in the original JPG will also be in the PNG.
Currently, the tool processes one image at a time to ensure the highest quality multi-resolution ICO generation. You can clear the current image and upload a new one to generate another favicon instantly.
We accept PNG, JPG/JPEG and SVG files as input. SVG is highly recommended because it scales perfectly to all required resolutions. From these inputs, we generate a multi-resolution favicon.ico file containing 16x16, 32x32, and 48x48 pixel versions.
Yes. If your source (PNG or SVG) has transparency, the generated favicon.ico will preserve it. You can also choose a background color if you prefer an opaque icon.
Currently, the tool does not have a background color picker. If your source image has transparency, it will be preserved. We are working on adding a background color feature soon!
No, EXIF metadata is not retained during conversion. The browser's canvas API used for conversion does not preserve metadata like EXIF, GPS coordinates, or other embedded information. This is actually beneficial for privacy as it removes potentially sensitive location or camera data.
The converter works best in modern browsers: Chrome, Firefox, Edge, and Safari. Older browsers or mobile browsers may have limitations with memory or performance during conversion.
The conversion itself happens entirely in your browser without any server communication. However, you need an internet connection to initially load the webpage and JavaScript files. Once loaded, you could theoretically use it offline for subsequent conversions if your browser has cached the assets.
If you get an error, try a smaller file or a different browser. If the image is corrupted, re-export or try opening the file in an image editor first. Very large images (over 4000x4000 pixels) may also fail due to browser memory limits. You can contact support for persistent issues.