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Python library to parse several Nintendo 3DS files

Project description


Python library to interact with Nintendo 3DS files.

The API is not yet stable. If you decide to use this, you should stick to a specific version on pypi, or store a copy locally, until it is stable.

This was recently separated out to its own repository. This will be a better README at some point.

Support can be found on Discord (info, invite link)

Supported types

  • CDN contents ("tmd" next to other contents)
  • CTR Cart Image (".3ds", ".cci")
  • CTR Importable Archive (".cia")
  • Executable Filesystem (".exefs", "exefs.bin")
  • NCCH (".cxi", ".cfa", ".ncch", ".app")
  • Read-only Filesystem (".romfs", "romfs.bin")
  • SD card filesystem ("Nintendo 3DS" directory)
  • SMDH icon ("*.smdh", "icon.bin")
  • Title Metadata ("*.tmd")


pyctr is under the MIT license.

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