Compress ICO
Optimize ICO favicon files. Reduce icon file size for faster website loading.
Output Format: PNG
ICO files will be converted to PNG format and compressed. PNG format has better compression ratios and modern browser compatibility while maintaining transparency support.
Select ICO files
or drop files here
Maximum file size: 50MB per file
Super Fast
Compress multiple images in seconds with our optimized algorithms.
100% Secure
All processing happens in your browser. Your files never leave your device.
High Quality
Maintain image quality while reducing file size up to 80%.
About ICO Compression
ICO (Icon) is the standard format for favicons and application icons. Our ICO compression tool optimizes these small but important files, ensuring fast loading times for your website favicons and app icons without sacrificing sharpness and clarity.
How to Compress ICO Images
Select ICO Files
Click the upload button or drag and drop your images into the upload area. You can select multiple files at once.
Compress Images
Click the "Compress All Images" button. Our tool will process each image and show you the compression results in real-time.
Download Compressed Files
Download your compressed files individually or all at once as a ZIP archive. Your original files remain unchanged.
Frequently Asked Questions
Is ICO compression lossless?
Our tool uses advanced compression techniques that can be either lossless or near-lossless. While we optimize file size, the visual quality is preserved to ensure your images look identical to the originals.
Are my files safe and private?
Absolutely! All compression happens locally in your browser. Your files are never uploaded to our servers or transmitted over the internet. This ensures complete privacy and security for your images.
What's the maximum file size?
You can compress files up to 50MB each. For larger files, consider compressing them in smaller batches or using a different format.
How much can I reduce file size?
Compression results vary depending on the image content. Typically, you can expect 30-80% file size reduction. Images with large areas of solid colors compress better than complex photographic images.