Convert DICOM to PNG — Lossless, In Your Browser
Export any DICOM scan as a lossless PNG image. No compression artifacts, no upload, no install.
- Pixel-perfect lossless export
- No upload, no install
- Works on any computer
Why PNG instead of JPG?
Both JPG and PNG are standard image formats, but they handle quality very differently. JPG uses lossy compression — it discards some image data to reduce file size. PNG is lossless: every pixel is preserved exactly as it was in the original DICOM.
For medical scans, this distinction matters when you need images for a publication, academic report, or medical presentation; when you want to zoom in tightly without compression artifacts; or when you've been asked specifically for a lossless format.
How DICOM-to-PNG export works
Three short steps. Everything runs locally in your browser — files never leave your device.
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Drop your DICOM file or folder
Drag and drop into the dropzone, or click to choose. The converter reads the DICOM data locally — nothing is uploaded.
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Choose the slice
For multi-slice studies (MRI, CT), you'll pick the slice you want as PNG. Single-image DICOMs (X-rays) export automatically.
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Download your PNG
The PNG downloads directly to your computer. Lossless, full-resolution, no watermark.
PNG vs JPG vs PDF — which format should you choose?
PNG is the right choice when quality is the priority: publications, printed materials, presentations, or situations where you need a pixel-perfect lossless image.
JPG is the right choice when file size matters more: emailing a scan to a family member, sharing on a phone, or attaching to an online form. The quality difference is usually invisible in practice.
PDF is best when you want a document-style output: multiple slices, captions, or a report format. OpenMyScan offers all three export formats.
Questions people actually ask
How do I use the PNG converter?
Drop your DICOM folder above, pick the slice, and click Download. The conversion happens locally in your browser — no upload, no install.
What's the difference between PNG and JPG for a medical scan?
PNG is lossless — every pixel is preserved exactly. JPG uses lossy compression that can introduce subtle artifacts at high zoom levels. For personal viewing and sharing, JPG is usually fine. For publications or detailed clinical review, PNG is safer.
Will the PNG file contain patient data?
By default, yes — DICOM files contain patient name and ID. If you want to remove that information first, use our DICOM Anonymizer tool before exporting.
Are my files uploaded anywhere?
No. All processing happens locally in your browser. Files never leave your device.
Can I export a whole series at once?
Single-slice export is free. For a full series, export each slice in turn or open the study in the DICOM viewer.
What scan types are supported?
PNG export works with MRI, CT, X-ray, and ultrasound — any study that opens in the standard DICOM viewer.