1. Open your files
Drag in one or more .dcm files, a whole study folder, or a .zip archive. Decoding happens on your device.
Free · private · in your browser
Free online DICOM viewer
Open your MRI, CT, X-ray, ultrasound or PET scan straight from a CD or folder — no upload, no sign-up. Your images are read locally and never leave your device.
Drop your DICOM files here
or — .dcm files or a folder. Nothing is uploaded.
Drop a scan here
Drop a scan here
Drop a scan here
Drop a scan here
Series 1/1 Slice
Concerned about a finding? Get an AI-supported read verified by a board-certified radiologist in 24–48 hours.
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100% local — your scan is processed in your browser and never uploaded.
How it works
Three steps from file to finding — everything happens on your device.
2. View & measure
Scroll slices, adjust contrast, zoom, play cine, and take length, angle and ROI measurements.
3. Get an expert read
Unsure about a finding? Start a case for an AI-supported read verified by a board-certified radiologist.
Privacy by design
Your scan never leaves your device
All DICOM parsing and rendering happens locally in your browser — your files are never uploaded to DocOrbit or any third party, and nothing is stored on a server. When you do request a second opinion, your imaging is encrypted in transit and at rest and is never used to train AI models.
No upload
Files open directly in your browser. They never touch our servers.
No account required
Use the viewer freely with no sign-up, login, or email.
Your images stay yours
If you request a second opinion, your data is encrypted end-to-end and never used to train AI.
Supports every common scan
CT · MRI · X-ray · Ultrasound · PET-CT · Mammography — single files, multi-frame, folders, .zip archives, and compressed DICOM (JPEG, JPEG 2000, RLE).
DICOM viewer FAQ
Is the DICOM viewer really free?
Yes. The viewer is completely free with no account, no upload, and no limits. It runs entirely in your browser.
Do you store or upload my files?
No. Your DICOM files are opened and decoded locally in your browser. They are never uploaded to DocOrbit or any third party, and nothing is stored on a server.
Which DICOM files and modalities are supported?
Single or multiple .dcm files, a whole study folder, or a .zip archive of DICOM files, including multi-frame studies, from MRI, CT, X-ray, ultrasound, PET-CT, and mammography. Compressed DICOM (JPEG, JPEG 2000, RLE) is supported.
Is there a file size limit?
There is no fixed limit because nothing is uploaded — your files are processed in your browser, so the practical limit is your device's memory. Typical studies of a few hundred megabytes open smoothly; very large multi-gigabyte studies may take longer or use significant memory. Image decoding runs in background workers so the page stays responsive.
What can I do in the viewer?
Scroll through slices, adjust window/level (brightness and contrast), zoom and pan, play cine loops, take length, angle and ROI measurements, invert, and inspect the full DICOM tag list.
Can I get a professional second opinion on what I see?
Yes. After viewing your scan you can start a case with DocOrbit to have it re-read with AI support and verified by a board-certified, subspecialty-matched radiologist, typically within 24–48 hours.
Get a second read
Concerned about a finding?
Get an independent, AI-supported second opinion from a board-certified radiologist — from $50, results in 24–48 hours.