Core features: Image selection; quality settings; size control; batch processing; before-and-after comparison; output folder selection. Input: JPG/PNG/WEBP/BMP/GIF/TIFF/ICO images Output: compressed images Supported platforms: Windows, macOS, and Linux; runs locally and offline. Business model: Free tier: 3 uses per day. Perpetual license removes usage limits. Processing: Files are processed locally and are not uploaded to third-party services.