See what your camera already records
Analyse your footage for lap times, racing lines and coaching where needed.
Start ImprovingFive channels. One upload.
Your action camera is already recording GPS position, accelerometer data, speed, and gyroscope orientation on every lap. Race Ninja reads it directly from the video file and gives you lap times, sector splits, racing lines on satellite imagery, and braking zone markers. Nothing to install, nothing to configure.
Your Perfect Lap
Every driver has sessions where sector 1 was nailed on lap 3, sector 2 peaked on lap 7, and sector 3 came together on lap 5. Your fastest sectors already exist. Just not in the same lap.
Your Perfect Lap stitches those sectors into a single composite video showing you the lap you're already capable of, with a theoretical time built from your real best-of-session data.
Theoretical best from session
See exactly where you gained or lost
Head-to-Head
Compare two laps side by side with synchronised video and racing lines on satellite.
Sector Analysis
Colour-coded sectors, speed zones, and equipment metrics for every lap.
AI Coaching
Session summary with strengths, weaknesses, and specific setup suggestions.
Show the world what you've got
Build videos with telemetry overlays. Download an MP4 ready for Instagram, TikTok, wherever. Share when you want to. Keep private when you don't.
Compare speed, lateral g-force, longitudinal g-force, and performance traces between any two laps.
See exactly where the time goes
Race Ninja breaks every session down sector by sector. See which parts of the track you nail and which ones wobble, where your typical lap leaks time against your best, and how each sector trends as the session goes on. Every chart points you at what to work on next time out.
Fuse your dashboard data
Running an Alfano, AiM, or other kart dashboard? Upload your session file alongside your video and Race Ninja time-syncs them automatically. RPM, EGT, and hardware speed appear on your video overlay, matched lap by lap.
Any track. Any kart. Any car. Anywhere in the world.
Drive somewhere new, upload the footage, and Race Ninja figures out where you were. It detects the circuit, splits your laps, and builds the telemetry. No manual setup.
Works with:
Simple, honest pricing
Choose what fits how you race. No hidden fees.
Subscribe
Best for regular racers. AI coaching, 1080p video, permanent hosting.
From £9.99/mo
Pay As You Go
No commitment. 1080p video, weather, sector detection. 365-day hosting.
£1.59 per analysis
From the blog
Tips, tutorials & updates
Telemetry Overlay alternative for racers: when you want analysis, not just a HUD
If you've been using Telemetry Overlay, or you're weighing it up, here's an honest take on when it's the right tool and when it isn't. Telemetry Overlay is genuinely good at what it does. It reads GPS and sensor data off a GoPro, DJI, Insta360 or dozens of other devices and burns...
2 min read
How to read a racing line from your GoPro footage
Everyone talks about the racing line. Far fewer people actually look at their own. The footage on your GoPro already holds it, you just need to draw it out. Because GPS records where you were several times a second, your exact path around the track is sitting in the video file. N...
2 min read
GoPro vs a data logger (AiM/MyChron) for karting: do you still need the hardware?
A MyChron on the steering wheel is almost a rite of passage in karting. But cameras got GPS, software got smart, and a fair question now is whether you still need to buy the logger at all. The honest answer: it depends what you're doing. Here's a straight comparison. What a data...
2 min read
Your data stays yours
Every lap you upload is private the moment it lands. It isn't shared with a team. It isn't pooled into anyone else's comparison. It isn't shown to another driver. And it never will be unless you say so.
You decide what happens next. Want your coach or your squad to see a session? Share it. Want to keep a scrappy practice day to yourself? Keep it locked. The choice sits with you on every single lap, and you can change your mind whenever you like.
Your driving is your edge. We're not in the business of handing it to the people you line up against. So nothing leaves your garage on its own. Not your telemetry, not your racing line, not your times.
Private by default
No setting to hunt for. You upload, you analyse, and the data is visible to you and nobody else.
Shared only when you choose
One toggle shows a lap to your team or a rival, or puts it on a public leaderboard. Flip it back whenever you want.