Free DICOM Viewer

Open DICOM (.dcm) files in your browser and upload selected scans for AI analysis

Free browser-based DICOM (.dcm) viewer

Open CT and MRI scans instantly in your browser, preview slices locally, save the current image as JPEG, and upload the right series for AI analysis from the same page when you are ready.

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Select the folder containing your DICOM (.dcm) files
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Preview CT or MRI slices instantly in the browser
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Use Save Image to download the currently displayed slice as a JPEG
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Upload the selected series for AI analysis from the same page
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Get a plain-language report in minutes

Private local preview

Encrypted upload

Delete anytime

Open Your DICOM Folder

View .dcm files locally in your browser, then upload selected series for analysis

How to upload DICOM files View a sample AI report

What is a free DICOM viewer?

A free DICOM viewer lets you open medical imaging files with the .dcm extension directly in your browser. You can scroll through scan slices, confirm you have the right series, and review CT or MRI images without installing desktop software. Read the DICOM upload guide ->

From viewer to AI analysis

This page keeps the viewer-first workflow: preview your scans locally in the browser, then upload the selected CT or MRI series only when you want an AI report. Learn more ->

What you can do with this free DICOM viewer

A viewer-first page for opening DICOM files in the browser, exporting slices as JPEG, and moving straight into AI analysis when you are ready.

Free DICOM (.dcm) viewer

Open DICOM files in your browser for free. Works on Mac and Safari too, with no desktop download, no installer, and no extra viewer app.

CT and MRI scan preview

Scroll through CT and MRI slices instantly to confirm the right series before you upload anything for analysis.

Upload for AI analysis from the same page

Preview first, then upload the selected series for AI analysis without navigating to a separate upload page.

Save Image as JPEG

Use the Save Image button in the viewer to download the currently displayed slice as a JPEG file.

DICOM to JPEG converter

Convert the slice you are viewing from DICOM to JPEG in one click, which is useful for sharing a non-DICOM snapshot.

Private local-first workflow

Your scans stay on your device while you preview them in the browser. Files are only uploaded if you choose to start analysis.

Looking for a CT-specific AI analysis page instead?

Frequently Asked Questions

Common questions about our free online DICOM viewer, DICOM to JPEG conversion, and browser-based scan preview.

Is the DICOM viewer really free?

Yes, 100% free with no limits. You can view as many DICOM files as you want, as often as you want. No account required, no credit card, no hidden fees.

Do my DICOM files get uploaded to a server?

No. Your files are processed entirely in your browser using JavaScript. Nothing is uploaded to any server. Your medical images never leave your device, ensuring complete privacy.

What file formats does the viewer support?

The viewer supports standard DICOM files (.dcm) from CT scans, MRI scans, and other medical imaging modalities. You can upload individual .dcm files or entire DICOM folders containing hundreds of slices.

Can I view both CT and MRI scans in this viewer?

Yes. The viewer supports all standard DICOM files regardless of modality — CT scans, MRI scans (all sequences including T1, T2, FLAIR). It automatically detects the modality from the DICOM metadata.

Does the viewer work on Mac, Linux, and Windows?

Yes. The viewer runs entirely in your web browser, so it works on any operating system — Mac, Windows, Linux, and even tablets. No software installation required. Works best in Chrome, Firefox, Edge, and Safari.