dcm2nii DICOM to NIfTI converter: compiled versions available from NITRC
Rust library for reading/writing NIfTI files, with SimpleITK/Nibabel-like APIs, native Rust support, and Python bindings for cross-language performance.
nii2dcm: NIfTI to DICOM creation with Python
The web UI for dcm2niix (DICOM to NIfTI converter)
DCM2NIIX Python package