NetGauge

NetGauge is a Java-based internet speed testing tool featuring client and server components. It measures download speed, upload speed, and ping (latency) using a custom-built HTTP server and native system commands. The entire tool is implemented using core Java with no external libraries.

Features

• Download speed test over HTTP
• Upload speed test using streamed data
• Ping test using the system's native ping command
• Custom lightweight HTTP server
• Nanosecond-level timing for accurate Mbps calculation
• Plain, dependency-free Java code

Components

Server (server/)

• Custom_server: A basic HTTP server using ServerSocket, handling:
• GET /download: Streams binary data to test download speed
• POST /upload: Accepts binary data to test upload speed

Client (client/)

• DownloadHandler.java: Downloads a fixed-size payload from the server and calculates download speed
• UploadHandler.java: Uploads a fixed-size payload to the server and calculates upload speed
• PingTester.java: Runs the system's ping command (e.g., ping -c 4 google.com) using ProcessBuilder, capturing real ICMP ping results

Before running any test, you must start the custom HTTP server included in this repository.
The server handles both /download and /upload requests and must be active for the client tests to function properly.