Load data into Weights & Biases

This guide shows how to load exported data into Weights & Biases.

Before you start

• Export your data from Neptune using the Neptune Exporter tool. Start from the migration overview.
• Get your Weights & Biases credentials:
  • W&B entity. You can set it with the environment variable WANDB_ENTITY or in the command line with --wandb-entity.
  • API key. You can set it with the environment variable WANDB_API_KEY or in the command line with --wandb-api-key.

Validate your export

Before loading the data into Weights & Biases, inspect what was exported:

uv run neptune-exporter summary --data-path ./exports/data

This command returns the number of exported projects or runs, attribute types, and the basic step statistics.

Load the data into W&B

The following command loads the data into Weights & Biases, using the default data and file paths:

uv run neptune-exporter load \
  --loader wandb \
  --wandb-entity my-org \
  --wandb-api-key "$WANDB_API_KEY" \
  --data-path ./exports/data \
  --files-path ./exports/files

info

For detailed instructions, see the Neptune Exporter README file on GitHub.