Betaflight tuning tools compared (2026)
There are three ways to tune a Betaflight quad from a log in 2026. You can read the log yourself with Blackbox Explorer or PIDtoolbox. You can let a tool recommend values: Betaflight’s own Autotune, FPVtune or FPVPIDlab. Or you can let a tool tune in rounds and check each change against the next flight, which is what FPV PID Tune does. Every option needs the same start: a mechanically sound quad, blackbox logging set up, and a flight in calm air.
The tools at a glance
| Reads logs | Recommends values | Writes to the quad | Firmware | Runs on | Price | |
|---|---|---|---|---|---|---|
| Blackbox Explorer | Yes | No | No | Any Betaflight | Web | Free |
| PIDtoolbox and its ports | Yes | No | No | Betaflight logs | Desktop | Free (GPL-3.0) |
| Betaflight Autotune | Yes, chirp logs | Slider values | Yes | 2026.6+ | Betaflight app | Free |
| FPVPIDlab | Yes | Filters and PIDs | Yes | 4.3+ | Desktop | Free tier and Pro |
| FPVtune | Yes | PIDs, filters, feedforward | No, CLI to paste | 4.5+ | Web | Pay if satisfied |
| FPV PID Tune | Yes | Filters, PIDs, feedforward, I-term, anti-gravity, TPA | Yes, with read-back and Undo | 4.3 to 2026.6 | Desktop Chrome or Edge | $10 per quad |
These are the projects’ own descriptions as of October 2026. Check each project’s site for changes.
Reading logs yourself
Blackbox Explorer is Betaflight’s log viewer. It shows every logged trace over time and has a spectrum view. It’s the reference tool for checking a log by eye.
PIDtoolbox turns a log into averaged step responses and noise spectrograms against throttle, the two plots tuning is based on. The original is no longer at its old address, but GPL-3.0 copies and Python ports exist.
Both leave every decision to you. That’s the best way to learn, and the slowest way to a good tune. Start with how to read a step response and Betaflight filter tuning.
Tools that recommend values
Betaflight Autotune (experimental, 2026.6) measures the frequency response from a chirp test during a hover and recommends simplified tuning slider values. It’s the most direct measurement of the control loop, it’s free, and it only covers what the sliders cover. See Betaflight Autotune compared.
FPVPIDlab is an open-source desktop app. It has separate filter and PID modes, each with its own flight and a check flight afterwards. It applies values over USB and clamps them to bounds by quad size.
FPVtune is a website. You upload a log, a neural network suggests PID, filter and feedforward values, and you paste the CLI commands yourself.
Tuning in rounds with FPV PID Tune
FPV PID Tune works from the test pack you’d fly anyway: a throttle sweep, snap rolls and flips, yaw spins, split-S and punch-outs. It tunes in four rounds, one area per round:
- Filters.
- P and D.
- Feedforward, I-term relax, anti-gravity and TPA.
- Fine-tuning.
Each round is compared with the flight before it, so a change that didn’t work is spotted and walked back.
What to compare before you choose
- Firmware support. Autotune needs 2026.6. FPVtune needs 4.5 or newer. Plenty of quads are still on 4.3 to 2025.12.
- What the test flight covers. A hover measures the control loop well, but not propwash or full-throttle punches. A test pack with snaps and dives covers more of real flying.
- What it can change. Sliders-only tools leave I-term relax, anti-gravity, TPA, the dynamic notch and the RPM filter alone.
- Limits and checks. Look for fixed limits on how far a value can move per change, and a follow-up flight that confirms the change helped.
- Getting back. A full backup before the first write, read-back after writing, and a one-step undo.
How FPV PID Tune handles it
FPV PID Tune backs up every setting before its first write. A validator holds every value inside fixed safety limits, every value is read back from the quad after Apply, and Undo is one click. You see what it found in your flight before you pay. A tune is $10 for one quad within 30 days, with a full refund within 14 days if the quad ends up flying worse.