Convert DICOM images (.dcm) to JPG - locally in the browser, with no upload; the scan never leaves your device.
Running locally on your device ...
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Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
DICOM files (PS3.10) store a medical image together with a lot of metadata - but to view or share it you normally need a dedicated DICOM viewer. This tool turns the image data into an ordinary JPG that opens on any device, drops into a slide deck or goes out by message. The conversion happens entirely in your browser; the original scan with its patient data is never uploaded anywhere.
Many DICOM transfer syntaxes are supported: uncompressed grayscale images (MONOCHROME1/2, 8 or 16 bit) and colour images (RGB), plus losslessly compressed scans - RLE Lossless, JPEG Lossless (Process 14 and SV1, the compression common in older ultrasound/mammography/CT/MR PACS exports) and JPEG 2000 (lossless or lossy) - as well as JPEG Baseline, including multiple frames. A multi-frame series produces one JPG per frame. For grayscale with a high bit depth the window stored in the file (Window Center/Width) is applied so brightness and contrast match the viewer; if it is missing, the tool scales automatically to the value range present.
Technically a lean, pure-JavaScript decoder reads the pixel data out of the file, applies the grayscale windowing and outputs the image as a JPG through the canvas engine; you set the quality with a slider. No foreign library and no server is involved - the same privacy approach as every tool here: the scan stays on your device, and you only share the JPG you actually want to pass on.
| Input formats | DCM |
|---|---|
| Output format | JPG |
| Batch processing | Yes |
| Processing | Locally in your browser (JavaScript) |
| File upload | None |
Limitations: Converts DICOM scans to JPG: uncompressed or losslessly compressed with RLE Lossless, JPEG Lossless (Process 14/SV1) or JPEG 2000, as well as JPEG Baseline - grayscale (MONOCHROME1/2, 8/16 bit, with Window Center/Width or auto-windowing) and colour (RGB), including multi-frame (one JPG per frame). JPEG-LS, JPEG Extended (12 bit) and PALETTE COLOR are NOT read in this version - a clear message says so instead of producing a wrong image; export the file in a supported syntax then. The JPG is a viewable sharing copy and not a replacement for a clinical DICOM viewer.
No. Reading and converting run entirely locally in the browser (pure JavaScript, no server); the scan with the patient data never leaves your device.
Uncompressed scans as well as losslessly compressed ones using RLE Lossless, JPEG Lossless or JPEG 2000, plus JPEG Baseline - grayscale (MONOCHROME1/2, 8/16 bit) and colour (RGB), including multiple frames. JPEG-LS and JPEG Extended (12 bit) are not read in this version - export the file in a supported syntax then.
Each frame becomes its own JPG with a running number in the file name.
Grayscale DICOMs often carry a window (Window Center/Width) for brightness and contrast; the tool applies it. If it is missing, it scales automatically to the value range present.
No. The JPG is a viewable copy for sharing and previewing, not intended for clinical use; the full image context stays in the DICOM.