web-speedtest 1.0.0

Network speed test — server with web UI and CLI client

web-speedtest

A network speed test with a web UI and CLI client — measure ping, download, and upload speeds.

web-speedtest provides two modes: a server that hosts a beautiful browser-based speed test, and a CLI client for quick terminal-based measurements. Both use the same API, and the entire tool is a single statically-linked binary — zero runtime dependencies.

Features

• Server mode — HTTP server with a web UI for browser-based speed testing
• Client mode — CLI tool for terminal-based speed measurements
• Ping test — measure round-trip latency
• Download test — time-based download throughput measurement (configurable duration)
• Upload test — time-based upload throughput measurement
• Web UI — dark-themed single-page app with animated gauges and live progress
• API endpoints — programmatic access for custom integrations
• Zero dependencies — single statically-linked Go binary
• Coloured output — TTY-aware ANSI colours for CLI results
• Cross-platform — works on macOS, Linux, and Windows

Installation

pip install web-speedtest

Or run directly with uv:

uvx web-speedtest

Quick Start

Start the server

# Start on default port 8080
web-speedtest server

# Start on a custom port
web-speedtest server --port 3000

# Bind to a specific address
web-speedtest server --host 127.0.0.1 --port 8080

# Set a custom test duration (default is 8 seconds per phase)
web-speedtest server --duration 15

Then open http://localhost:8080 in your browser to run a speed test.

Run a CLI speed test

# Test against a local server
web-speedtest client localhost:8080

# Test against a remote server
web-speedtest client http://speedtest.example.com:8080

API Endpoints

The server provides these endpoints for programmatic access:

Endpoint	Method	Description
/api/ping	GET	Returns a small JSON payload for latency measurement
/api/download?size=N	GET	Streams N bytes of random data (max 100 MB per request; client loops until time is up)
/api/upload	POST	Accepts a body of data and returns size/duration
/api/info	GET	Returns server metadata including test_duration (seconds)

Development

# Set up development environment
make dev

# Run linting and format checking
make check

# Auto-format code
make format

# Build wheel and docs
make build

Licence

Released under the Unlicense — public domain.