A powerful, free, open-source desktop viewer based on OsiriX. While it requires a download, it acts as a local PACS node.
If you like the cloud-based nature of SmartPACS, PostDICOM offers a free trial with cloud storage space. It allows you to upload and view images from any browser, mimicking the SmartPACS experience. 4. Weasis (Best Cross-Platform) SmartPACS™ Veterinary Image Viewing Platform smartpacs image viewer free
MicroDicom also offers a portable CD/DVD/USB version that can run directly from external storage without installation, making it ideal for distributing patient images on physical media. A powerful, free, open-source desktop viewer based on OsiriX