A free toolkit for FPV pilots: tuning, crash analysis, motor health, plus battery and build calculators.
Upload a Betaflight blackbox log and get PID, filter, and feedforward recommendations.
Find out why your quad fell out of the sky — desync, failsafe, brownout, or mechanical.
Spot a failing or overworked motor from your log before it brings the quad down.
Estimate how long your drone will fly from battery capacity and current draw.
Enter weight and motor thrust to get your TWR and a flight-style verdict.
See how long a LiPo takes to charge and the safe 1C charge current.
Convert a pack’s C rating to max current and check it covers your draw.
This is the full set of FPV tools FPVTune builds for quad pilots, in two kinds. Some need a blackbox log — PID tuning, crash analysis, and the motor health check dig the problems out of your flight data. The rest are instant calculators — flight time, thrust-to-weight ratio, and LiPo charge time — that need nothing uploaded, just two numbers and you have an answer. The FPV calculators you reach for when building, picking a battery, or getting ready to fly are all here.
More tools are added over time. The log-based tools use a Betaflight blackbox recording — see the blackbox export guide to get yours.