Over on GitHub @devdevcharlie has uploaded open source Javascript code for creating an ADS-B Aircraft Radar system entirely within a web browser. The code makes use of the Web USB API, which enables USB devices like RTL-SDR dongles to connect directly to the code running in the web browser.

In her blog post, Charlie explains her code in greater detail, noting that it draws inspiration from AirplaneJS and rtlsdr.js. She explains how the Web USB API works, how to process the raw ADS-B data, and what her final setup looks like.

A demo site that you can use to directly connect to your RTL-SDR is available here.

In the past we've seen other WebUSB projects, like "aprs-sdr" which creates an APRS repeater system using a HackRF.