Uploads itself
Finish your bucket and walk away. Filtered sessions push automatically from the Pi whenever connectivity exists — no SD cards, no cables, no babysitting.
Open-source launch monitor + cloud
The launch monitor
you build yourself.
Progress, proven.
OpenFlight is a real launch monitor built from a Raspberry Pi and three off-the-shelf radars — about $500 in parts, open source top to bottom. FlightWeb is its cloud: every session uploads itself, and your trends live forever.
AGPL-3.0 · raw radar data never leaves your Pi
live session — rangeshot 014
Ball speed142.3 mph
Club speed104.9 mph
Smash1.36
Launch14.2 deg
Spin6,420 rpm
Carry218 yds
spin quality high — measured, not modeled · conf 0.92
The project — free forever
Built in a garage.
Shared with everyone.
OpenFlight is a complete launch monitor you assemble yourself: a Raspberry Pi, an OPS243 Doppler radar for speed, a pair of K-LD7s for launch angle and club path, and software that's AGPL-3.0 all the way down. Every algorithm — spin from envelope FFTs, launch geometry, club detection — is readable, hackable, and improved by the community that uses it.
~$500complete build, parts list included
×3radars — 1 OPS243 + 2 K-LD7
100%open source, AGPL-3.0
Three radars, no black box
An OPS243 Doppler radar reads ball and club speed straight from physics; two K-LD7 modules measure vertical launch and club path. All commercially available parts — no proprietary sensors, no subscription.
The full flight picture
Launch angles, smash factor, carry, and spin — each number carries its own confidence, so you know what was measured and what was inferred.
Rolling-buffer capture
The speed radar streams into a rolling buffer while a sound trigger marks the exact impact. Step up, swing, done — it never misses a shot waiting for a button.
Happy offline
No wifi at the range is a non-event. Sessions queue on the Pi and sync themselves when you're back in coverage.
FlightWeb — the cloud service
Every session, remembered.
The Pi shows you one session at a time. FlightWeb keeps all of them — so the question stops being “what did I hit today?” and becomes “am I getting better?”
Trends that answer questions
Am I faster than I was in March? Is my gapping right? Per-club speed, carry, dispersion, and personal records — across every session you've ever hit.
Honest numbers
Low-confidence spin renders as an estimate, not a measurement. FlightWeb tells you what your launch monitor measured — and what it inferred.
Free
$0
- Last 10 sessions
- Current-session insights
- 1 linked device
Pro
~$6/mo
- Unlimited session history
- Trends, dispersion & gapping
- 3 linked devices
- Full data export
“Raw radar data neverleaves your Pi.”
The uploader strips raw I/Q at the source with an allowlist — sessions travel as tens of kilobytes of shot summaries, not megabytes of signal. --dry-runshows you exactly what's sent. Export everything, or delete it all, any time.