Watermarkly's GIF Resizer is a free online tool that allows users to easily resize animated GIFs without losing quality. The process is quick and straightforward, requiring only a few minutes to upload files, adjust pixel dimensions, and download the resized GIFs. Users can choose to downsize or upscale their images, maintain aspect ratios, and utilize batch processing. The tool guarantees safety and confidentiality of files, making it ideal for those looking to optimize GIFs for social media or web use while ensuring they meet specific size requirements.