Free DICOM Viewer
A completely free DICOM viewer with no downloads, no registration, no watermarks, and no usage limits. View medical images from CT scans, MRIs, X-rays, and ultrasounds directly in your web browser. Unlike desktop DICOM viewers that require installation and often come with expensive licenses, our web-based viewer is ready to use instantly at zero cost.
اسحب الملفات هنا
DICOM (.dcm), NIfTI (.nii, .nii.gz), NRRD (.nrrd), MHA (.mha)
Max file size: 200 MB • Processed locally
Why Choose a Free Online DICOM Viewer?
Professional DICOM viewing software can cost hundreds of dollars per year in licensing fees. OsiriX MD requires a $69 annual subscription, RadiAnt DICOM Viewer costs $55 per license, and enterprise PACS solutions can run into thousands. For patients wanting to view their own scan results, students studying radiology, or physicians needing quick one-time access to imaging data, these costs are unnecessary. Our viewer provides the essential viewing capability at zero cost.
Free desktop alternatives like Horos and MicroDicom exist, but they require downloading and installing software — a process that can take 15-30 minutes and may not be possible on managed workstations, library computers, or borrowed devices. Our browser-based viewer eliminates the installation step entirely, making it the fastest path from DICOM file to viewable image.
Unlike some free online tools that add watermarks, require account creation, or limit the number of files you can view, our DICOM viewer has no restrictions. View as many DICOM files as you need, as often as you need, with full-quality output and no identifying marks on your images.
How to Use the Free DICOM Viewer
- No download or signup needed — open this page in your browser.
- Upload your .dcm file from any source — hospital CD, email, or cloud storage.
- View your medical image instantly — download as JPG for free.
Key Features
- 100% free — no subscription, no registration, no watermarks
- No software download or installation required
- Instant viewing in any modern web browser
- Supports all DICOM modalities: CT, MRI, X-ray, Ultrasound
- Automatic window/level adjustment for optimal display
- Download rendered images as standard JPG files
- Unlimited usage — view as many files as you need
Frequently Asked Questions
Is this viewer really completely free?
Yes. No registration, no subscription, no hidden costs. You can view unlimited DICOM files without creating an account. There are no watermarks on the output images and no feature restrictions. The service is supported by non-intrusive advertising.
How does this compare to RadiAnt or OsiriX?
RadiAnt and OsiriX are professional desktop DICOM viewers with advanced features like 3D rendering, MPR reconstruction, and measurement tools. Our viewer focuses on the most common need: quickly seeing the image content of a DICOM file. For basic viewing and sharing, our free online tool is faster and more accessible. For advanced analysis, desktop tools remain superior.
Can students use this for radiology studies?
Absolutely. Medical students, radiology residents, and radiologic technologist students frequently need to view DICOM files for coursework, case studies, and exam preparation. Our free viewer eliminates the need to install and configure PACS software on personal computers, making medical image viewing accessible for educational purposes.
Are there any file size limits?
Free users can upload DICOM files up to 50 MB, which covers the vast majority of single-frame and multi-frame DICOM files. A typical CT slice is 500 KB to 2 MB, and even full mammography images rarely exceed 30 MB.