HIGH-PERFORMANCE IN-BROWSER PACS VIEWER
Online DICOM Viewer — Open CT, MRI & X-Ray Instantly (Private)
MedSlice is a next-generation browser DICOM viewer built for patients, doctors, radiologists, and researchers. Whether you received a hospital patient CD, an MRI disc that won’t open on Mac, or a complex multi-frame CT scan, MedSlice renders diagnostic-quality images directly in your browser without uploading your sensitive health data to external cloud servers.
How to open DICOM files in your browser
Opening medical imaging records shouldn't require installing cumbersome desktop software or exposing your private health records to third-party cloud converters. With MedSlice, the process is instant:
Drop Files or Folders
Drag your .dcm files, DICOMDIR index, or full hospital CD directory directly onto the canvas area above.
Navigate & Adjust
Scroll slices, switch Window/Level presets (Bone, Soft, Lung, Brain), measure lesions in millimeters, and run Cine video loops.
Export or Anonymize
Export slices to high-res JPG, download full series in ZIP, or sanitize patient identifiers for research publications.
Supported modalities and formats
MedSlice implements a zero-dependency WebAssembly engine compatible with standard DICOM PS 3.0 specifications across all primary clinical, veterinary, and dental specialties:
Why MedSlice vs hospital CD viewers & legacy desktop software
Traditional hospital CDs usually come bundled with outdated 32-bit Windows executables that fail on macOS, Linux, or modern Windows workstations. Heavy software like OsiriX, Horos, or Weasis requires GBs of downloads, security exceptions, or Java runtimes. MedSlice eliminates all barriers:
| Feature | MedSlice (Web) | Hospital CD Viewer (.exe) | Horos / OsiriX / Weasis |
|---|---|---|---|
| Installation required | None (Opens in Browser) | Yes (Windows only) | Yes (Large installers & dependencies) |
| Mac & iOS Compatibility | Native Safari / Chrome | Fails on macOS | Mac only (Horos) or Java needed |
| Privacy & Data Security | 100% Client-Side Memory | Local (if it runs) | Local desktop |
| DICOMDIR Index Auto-Detection | Instant study grouping | Proprietary format | Manual import database required |
Specialty viewers: Dental CBCT & OPG · Veterinary X-Ray & Ultrasound
Frequently Asked Questions
How do I open DICOM (.dcm) files without installing software?
Simply drag and drop your DICOM files, DICOMDIR file, or your entire hospital CD folder directly onto the MedSlice viewer. The engine runs locally in your browser using high-performance WebAssembly, rendering slices with zero setup.
Are my medical scans uploaded to any server or cloud?
No. MedSlice processes 100% of your DICOM files locally inside your browser memory. Your scans, medical records, and patient identifiers never leave your computer or network.
Which medical imaging modalities and compression syntaxes are supported?
MedSlice supports all major DICOM modalities including CT (Computed Tomography), MRI (Magnetic Resonance), CR/DX (Digital X-Ray), US (Ultrasound), MG (Mammography), CBCT (Dental 3D), PET, and NM. It supports uncompressed (Explicit & Implicit VR), RLE lossless, and JPEG 2000 transfer syntaxes.
Can I adjust contrast, zoom, and measure pathology dimensions in millimeters?
Yes. You can switch Window/Level presets (Bone, Lung, Soft Tissue, Brain, Dental), interactively drag to adjust brightness and contrast, pan/zoom, play cine loops, and draw calibrated measurement calipers based on DICOM PixelSpacing.
How does MedSlice compare to Horos, OsiriX, and Weasis?
Unlike desktop software like Horos or OsiriX (which require macOS downloads, disk space, and complex installation) or Weasis (which requires Java), MedSlice opens instantly in Safari, Chrome, Edge, and Firefox on any Mac, Windows, Linux, or iPad device with zero friction.
Can I export DICOM slices to JPG or PDF reports?
Yes. You can export individual slices as high-resolution JPG images or batch-download the entire sequence as a ZIP archive. Pro users can also generate PDF medical reports and MP4 cine video loops.