This addon is adding batch import features to existing importers for blender. The credits for the importers goes to each importer addon developers and to the blender team themself. You can click on the link below to know more about the author of each importers.

Key Features:

• With this addon, you can import multiple files of different formats from the same import dialog.
• You can scan for files to import in a folder hierarchy.
• (Blender 4.1+ only) Drag and drop any file to import them.
• The viewport stays interactive during the import process, you can setup autosaves during import. Everything is made to smooth the experience.
• You can process the imported files with python command during import that opens a lot of possibilities