DICOM to PNG Converter
Convert DICOM medical images (.dcm) — CT, MRI, X-ray, ultrasound — to PNG. Lossless, private, and metadata-free: only the image pixels are exported.
Complete the security check to begin
Every conversion removes DICOM metadata by default. No configuration is required.
A DICOM header carries Protected Health Information — patient name, ID, birth date, study dates, physician and institution. This converter exports only the image pixels, so every one of those tags is dropped automatically. The one exception is text a scanner may have burned directly into the picture, which is part of the image itself and cannot be removed automatically.
Open a .dcm scan anywhere — without leaking patient data
DICOM is the format medical scanners use, and it can rarely be opened outside specialist viewers. Converting to PNG gives you a lossless, universally viewable copy of the scan — ready to attach to an email, drop into a document or share with a colleague — while the sensitive metadata stays behind. Everything is processed in memory and deleted the instant your download is ready.
About Converting DICOM to PNG
DICOM is the international standard that medical scanners use to store and exchange images — CT, MRI, X-ray, ultrasound and more. A .dcm file wraps the picture together with a large header of patient and study information, which is why it can rarely be opened outside specialist viewers. When you need to move away from DICOM, the usual reason is simple: cannot be opened by ordinary image viewers.
Converting your DICOM image to PNG solves that. PNG is a lossless raster image format that supports a full alpha-transparency channel. It is the standard choice for screenshots, logos, icons and any graphic with sharp edges or text where quality must be preserved exactly. In practice you gain lossless compression keeps every pixel intact and full alpha transparency. PrivConvert runs the whole DICOM-to-PNG conversion in server memory and deletes your file the instant the PNG is ready — nothing is stored, logged or reused.
When this conversion helps
- You need lossless compression keeps every pixel intact
- You need full alpha transparency
- You need universally supported in browsers and editors
- Escaping a proprietary DICOM file for the open PNG standard
- Sharing a DICOM image with someone whose software expects PNG
Tips for best results
- PNG preserves quality exactly, so the conversion from DICOM will not introduce any new compression artifacts.
- For the smallest possible PNG without visible quality loss, start from the highest-quality DICOM you have.
- Files up to 250 MB are supported, and you can batch-convert several DICOM files at once; each is processed privately and deleted immediately.
How to Convert DICOM to PNG Online
Converting DICOM files to PNG format is simple with PrivConvert. Our free online converter handles the entire process in your browser with no software installation required. Your files are processed securely in memory and never stored on our servers.
Drag and drop your file into the upload area, click to browse your device, or paste a URL to a file hosted online. You can upload files up to 250 MB and batch convert up to 20 files at once.
Once uploaded, the conversion from DICOM to PNG starts automatically. The process runs entirely in an isolated environment - your data never leaves the secure pipeline.
Your converted file is ready instantly. Click the download button to save it to your device. The file is deleted from memory immediately after download.
Why Choose PrivConvert?
Unlike other online converters that upload your files to remote servers, store them for days, and may use them for AI training or sell your data, PrivConvert was built with privacy as the foundation. Here's what makes us different:
Files are processed in volatile memory (RAM) and immediately purged. Nothing is ever written to disk or backed up.
All uploads and downloads are encrypted with TLS 1.3. Your files cannot be intercepted in transit.
Use any tool instantly without signing up, providing an email, or creating a profile. No tracking cookies, no user profiling.
Compatible with Windows, macOS, Linux, iOS, and Android. No plugins or desktop software needed - just a modern web browser.
DICOM vs PNG - Format Comparison
| Feature | DICOM | PNG |
|---|---|---|
| File extension | .dicom | .png |
| Full name | Digital Imaging and Communications in Medicine | Portable Network Graphics |
| Introduced | 1993 | 1996 |
| Compression | Lossless | Lossless |
| Encoding | Binary | Binary |
| Transparency | — | Yes |
| Open standard | — | Yes |
| Supported by PrivConvert | Yes (as input) | Yes (as output) |
| Privacy-safe conversion | In-memory, zero storage | |
| Max file size | 250 MB per file | |
| Batch support | Up to 20 files simultaneously | |
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