Watermarkly's Upscale Image tool allows users to enhance the resolution of their images for free, ensuring sharp and clear results suitable for printing or online sharing. The browser-based application supports various file formats, including JPEG, PNG, and GIF, and enables batch processing of up to 10 images per day without registration or ads. Utilizing advanced AI algorithms, the tool intelligently adds new pixels to improve image quality while maintaining original details. Users can easily adjust image dimensions, making it ideal for e-commerce, high-resolution displays, and professional presentations.