Where is the Keras configuration file stored?

The default directory where all Keras data is stored is:

$HOME/.keras/

For instance, for me, on a MacBook Pro, it’s /Users/fchollet/.keras/.

Note that Windows users should replace $HOME with %USERPROFILE%.

In case Keras cannot create the above directory (e.g. due to permission issues), /tmp/.keras/ is used as a backup.

The Keras configuration file is a JSON file stored at $HOME/.keras/keras.json. The default configuration file looks like this:

{
    "image_data_format": "channels_last",
    "epsilon": 1e-07,
    "floatx": "float32",
    "backend": "tensorflow"
}

It contains the following fields:

• The image data format to be used as default by image processing layers and utilities (either channels_last or channels_first).
• The epsilon numerical fuzz factor to be used to prevent division by zero in some operations.
• The default float data type.
• The default backend. It can be one of "jax", "tensorflow", "torch", or "numpy".

Likewise, cached dataset files, such as those downloaded with get_file(), are stored by default in $HOME/.keras/datasets/, and cached model weights files from Keras Applications are stored by default in $HOME/.keras/models/.