--- description: Learn how to integrate and use TensorBoard with Ultralytics for effective model training visualization. keywords: Ultralytics, TensorBoard, callbacks, machine learning, training visualization, logging --- # Reference for `ultralytics/utils/callbacks/tensorboard.py` !!! note This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/callbacks/tensorboard.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/callbacks/tensorboard.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/utils/callbacks/tensorboard.py) 🛠️. Thank you 🙏!
## ::: ultralytics.utils.callbacks.tensorboard._log_scalars



## ::: ultralytics.utils.callbacks.tensorboard._log_tensorboard_graph



## ::: ultralytics.utils.callbacks.tensorboard.on_pretrain_routine_start



## ::: ultralytics.utils.callbacks.tensorboard.on_train_start



## ::: ultralytics.utils.callbacks.tensorboard.on_train_epoch_end



## ::: ultralytics.utils.callbacks.tensorboard.on_fit_epoch_end