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XMedCon vs dcm2niix: catalog facts
XMedCon	dcm2niix
Free Free software released under the GNU GPL version 2 or later.	Free Free and open source; most of the code is covered by a BSD license.
Linux, Command line	Windows, macOS, Linux, Command line
Converts several medical imaging formats GPL-licensed toolkit	Converts DICOM scans to NIfTI Can generate BIDS JSON sidecars
Focused on medical image conversion formats and workflows.	Does not support some legacy image formats handled by dcm2nii
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later AND LGPL-2.0-or-later	License: BSD-3-Clause
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.