Compress ICO to 100KB
Compress ICO to exactly 100KB with multi-round quality and resize optimization. Smart format conversion defaults to WebP for maximum compression. Free, private, browser-based.
Select ICO files
or drop files here
Maximum file size: 50MB per file
100% Secure
All processing happens in your browser. Your files never leave your device.
Super Fast
Compress multiple files in seconds with our optimised algorithms.
High Quality
Maintain file quality while reducing file size up to 80%.
ImageTiny
RecommendProcess photos offline on iPhone with compression, crop, resize, format conversion, and EXIF cleanup. Batch up to 200 images and quickly turn HEIC into shareable JPG.
Works well for HEIC, JPG, PNG, WebP, GIF, BMP, ICO, and TIFF image workflows with privacy-first local processing.
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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.