Hi Axel,
Object Detection is a hard task (in terms of computer resources) and may take a while to fine tune (customize to your own data).
The easiest solution I can give is to:

use Model Maker: Object Detection with TensorFlow Lite Model Maker 27 (for a full hands on: Go further with object detection  |  Google Developers 15 ). This is focused on mobile dev, but after you have the model customized to your data, watch the video below.
Run the customized model on the browser with TFJS Task API: Easily deploy TF Lite models to the web | Demo - YouTube 19


I don’t know about an easier path as of now and without Python code for the training, @Jason might have some better insights to share.