chinmayjoshi4130/python-pybro-ui

Pybro is a Python library that lets you build a working browser-based interface for your Python scripts without writing any HTML, JavaScript, or CSS. You describe the layout in plain Python using calls like ui.title, ui.input_text, and ui.button_callback, and Pybro launches a local web server and opens the interface in any browser in about ten seconds. The main idea is to give developers a fast way to wrap a backend script, an API call, a data pipeline, or an automation routine in a usable interface so other people can interact with it or provide feedback before committing to building a proper frontend. It works without Node.js or build steps. Under the hood, Pybro reads your script to understand its layout without actually running the whole file, which keeps things predictable. When someone interacts with a form element, the change is broadcast to all connected browsers in real time using a built-in server push mechanism. Callbacks run your Python functions and push the results back to update specific parts of the page. Client-side formulas such as price times quantity update instantly in the browser without a server round trip. The library includes a wide range of widgets: text inputs, checkboxes, dropdowns, sliders, toggle switches, date pickers, progress bars, tables, Markdown blocks, and output text areas. You can apply inline styles or CSS classes to any element, and a single call sets the global color theme for the whole page. There are three deployment modes. Localhost is for personal use on one machine. Shared mode makes the tool available to anyone on the same local network who has an access key. A third experimental mode lets a remote machine download the project and run callbacks locally. The README notes this is early-stage software, built and tested primarily on Android with Termux, and may have breaking changes.