FlightTrace

Real-time drone telemetry dashboard. Connect over USB, Bluetooth LE, or Wi-Fi UDP and get live flight data in your browser — no native app required.

⚠️ Disclaimer: This tool was built for personal debugging and testing purposes. It may contain bugs or missing features. Use at your own risk.

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Download

Grab the latest build from the Releases page:

Platform	File
Linux	FlightTrace-*.AppImage
macOS	FlightTrace-*.dmg
Windows	FlightTrace-*.exe

Or open the web app in Chrome / Edge.

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Supported Protocols

Auto-detected from the byte stream — no manual configuration needed.

• CRSF (TBS Crossfire / ExpressLRS)
• MAVLink v1 / v2 (ArduPilot, PX4, iNav)
• LTM (Light Telemetry)

See the Wiki for full frame and field details.

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Supported Hardware

Platform notes:

• USB — works in Chrome/Edge desktop browser and in the Electron app.
• Wi-Fi UDP — requires the WebSocket bridge process; runs automatically inside the Electron app. Not available in the hosted web app.
• Bluetooth LE — works in Chrome/Edge on Windows and macOS. On Linux the browser web app does not support BLE (most Chrome/Chromium builds on Linux strip Web Bluetooth); use the Electron app instead.

USB (Web Serial)

Any flight controller or radio link module connected via USB serial (FTDI, CP210x, CH340, STM32, ESP32, RP2040, and others). Default baud rate 420000, configurable in Settings → Interface.

Bluetooth LE (Web Bluetooth)

Common BLE-to-serial adapters and radio link modules (Nordic UART, HM-10, SpeedyBee, DroneBridge, and others). If your device isn't found, enable Show all devices in Settings → Interface.

Wi-Fi / UDP

Any flight controller that streams MAVLink, CRSF, or LTM over UDP (e.g. MAVLink over Wi-Fi via ESP-01, ESP32, or SiK radio telemetry). Default port 14550. The WebSocket bridge runs automatically inside the Electron app; for browser use start node bridge/udp-bridge.js.

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Telemetry Replay

FlightTrace can replay any telemetry log you've previously recorded — no live hardware needed.

1. Record — while connected, click the Download log (CSV) button in the top bar to save a .csv file of the current session.
2. Replay — click the Replay button (counter-clockwise arrow) in the top bar and pick a .csv file.
3. A replay bar appears below the top bar with the full transport controls:
   • Play / Pause — start or pause playback.
   • Stop — exit replay and return to live mode.
   • Scrubber — drag to jump to any point in the recording; the map trail and all telemetry fields update instantly.
   • Speed selector — play back at 0.25×, 0.5×, 1×, 2×, 4×, or 10× real-time speed.
   • Elapsed / total time — shown as MM:SS / MM:SS next to the scrubber.

The replay CSV format is the same as the log download, so files are interchangeable across sessions.

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Quick Start (local dev)

git clone <repo-url>
cd flighttrace
npm install
npm run dev        # Vite dev server + UDP bridge

Requires Node.js 20.12+ and Chrome / Edge for USB and BLE.

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Documentation

Full setup guides, troubleshooting, and platform-specific notes are in the Wiki:

• Getting started
• macOS setup & Bluetooth
• Troubleshooting
• Building from source

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License

MIT — see LICENSE.

FlightTrace is independent and not affiliated with TBS, ExpressLRS, ArduPilot, PX4, iNav, Betaflight, SpeedyBee, or any flight controller or radio vendor mentioned. Trademarks belong to their respective owners.

Designed by Nilesh M · © 2026