Betaflight Blackbox Explorer — Analyze FPV Flight Logs Online

Free browser-based Blackbox log viewer for Betaflight FPV drones. Upload your .bbl, .bfl or .csv flight logs and instantly analyze PID response, gyro noise, motor output, GPS tracks and frequency spectrum — no install, no account, works in Chrome, Firefox, Safari.

What you can do

  • Visualize PID loop (P, I, D, F terms per axis) over time
  • Analyze gyro noise and filter performance (FFT spectrum)
  • Overlay motor output traces to spot desync or oscillation
  • Display GPS tracks on a map with altitude and speed
  • Sync video overlay for frame-by-frame flight analysis
  • Export data as CSV, GPX, screenshots, or WebM video
  • Compare multiple logs side by side

Supported formats

.bbl (Betaflight binary log), .bfl (Betaflight flash log), .csv (exported log), video overlay: .mp4, .webm, .mov, .avi

How to get Blackbox logs

Enable Blackbox logging in Betaflight Configurator → Blackbox tab. Choose onboard flash or SD card. After flight, download the .bbl file and open it here.

Related

Betaflight Home · Download Firmware · Blackbox Guide · PID Tuning Guide · Configurator Setup · Betaflight Ukraine · FAQ

FAQ

What is Betaflight Blackbox Explorer?

A free browser-based tool to analyze Blackbox flight logs from Betaflight FPV drones. Visualize PID, gyro, motors, GPS, and frequency spectrum without installing anything.

What log formats are supported?

Betaflight Blackbox logs in .bbl (binary), .bfl (binary), and .csv (exported). You can also overlay video (.mp4, .webm) for frame-synced analysis.

How to enable Blackbox logging?

In Betaflight Configurator → Blackbox tab. Select logging device, set sample rate, enable. Full guide: Blackbox logging and usage

Is it free?

Yes, 100% free and open source (GPLv3). No account, no install.

Can I analyze PID tuning?

Yes. Shows P, I, D, F terms per axis. Spectrum analyzer helps identify noise and optimize filtering.