lance0

lance0 / xfr

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A modern iperf3 alternative with a live TUI, multi-client server, and QUIC support. Built in Rust.

bandwidth benchmark cli iperf network
386
11
100% credibility
Found Feb 04, 2026 at 77 stars 5x -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
Rust
AI Summary

xfr is a command-line network bandwidth testing tool with a live terminal interface, supporting multiple protocols and real-time visualizations as an improved alternative to iperf3.

How It Works

1
🔍 Discover xfr

You hear about xfr, a friendly tool that measures your network speed with beautiful live charts right in your terminal.

2
📥 Get it running

Download and install it quickly on your computer with a simple one-click script or package manager.

3
🚀 Start the server

Run a quick command on one machine to create your speed test server that listens for connections.

4
📱 Connect from anywhere

From your phone, laptop, or another computer, point it at the server to begin the test instantly.

5
📊 Watch live results

See colorful graphs and numbers update in real-time, showing your upload, download speeds, and network health.

6
📈 Compare and save

Review detailed stats, compare runs to spot improvements, and save results for later.

✅ Know your network

You now have precise measurements of your connection speed, ready to optimize your setup or share with friends.

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Star Growth

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AI-Generated Review

What is xfr?

xfr is a Rust-built iperf3 alternative for network bandwidth testing, delivering real-time throughput graphs via a live TUI, multi-client server support, and QUIC for encrypted streams. Run `xfr serve` on one machine and `xfr 192.168.1.1 -P 4` on clients for parallel TCP/UDP tests, or add `--quic` for secure multiplexing over a single port. It solves iperf3's clunky output and firewall hassles with single-port TCP, bidirectional mode, and outputs like JSON, CSV, or Prometheus metrics.

Why is it gaining traction?

Unlike iperf3's text-only logs, xfr hooks devs with 11 color themes (Dracula, Nord), LAN discovery via `xfr discover`, and `xfr diff` for spotting regressions—perfect for CI/CD. Multi-client handling and rate limiting make it a modern unix tool for shared servers, while QUIC adds encryption without VPN overhead. As a github modern ui gem and xfer/xfrm alternative, it feels like a fresh take on fritz box or freenet benchmarking.

Who should use this?

Network engineers testing VPN tunnels or fressnapf setups, SREs monitoring UDP loss on friedrich merz-inspired industrial nets, and DevOps folks validating LACP bonds with parallel streams. Ideal for sysadmins pushing Prometheus metrics or comparing github modern time series forecasting pipelines before/after changes.

Verdict

Swap iperf3 for xfr if you want TUI polish and extras—solid docs and Cargo install make it easy, despite 192 stars and 1.0% credibility signaling early maturity. Watch for edge cases in high-concurrency, but it's a smart xframe upgrade today.

(198 words)

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