Netron is described as 'Visualizer for neural network, deep learning and machine learning models. It runs on macOS, Windows, Linux and in the browser' and is an app. There are 2 alternatives to Netron for a variety of platforms, including Linux, Web-based, Self-Hosted, Flathub and Flatpak apps. The best Netron alternative is NEST Desktop, which is both free and Open Source.
NEST Desktop is a web-based application which provides a graphical user interface for NEST Simulator. With this easy-to-use tool, users can interactively construct neuronal networks and explore network dynamics.
Deep playground is an interactive visualization of neural networks, written in typescript using d3.js and TensorFlow. Github issues is used for tracking new requests and bugs.
tensorflow playground is a demo of how works neural networks, netron is a tool to display the architecture of a nn file