The LapViz apps
From the stopwatch on the pit wall to the analysis of every corner: the LapViz apps time your laps, share them live and help you understand where the time is.
Try it now, without an accountFree
Drop a file of your logger or lap timer: nothing to install, no sign-up.
LapViz Studio
The analysis in your browser: the file is read on your computer and is not uploaded.
- Your laps overlaid, from several sessions and drivers, with the delta
- Every channel of the logger, by time or by distance
- Sectors, rolling best and ideal lap, track map on the satellite view
- On-board video synchronized with the data
3D replay
Your laps on the satellite view of the circuit, like in a racing game. The file is converted to be replayed, not kept.
- Every lap against the ghost of your best lap
- A second file as the ghost: race against a team-mate or a rival
- Chase, onboard and helicopter cameras, speed, revs and live gap
- The sound of the engine, following the revs of the session
Keep your sessions with a free account
Import your files into LapViz to find them everywhere and compare yourself with the others.
- Every session kept, on the web and in the LapViz app
- Leaderboards per circuit and category
- Corner by corner analysis of every lap
- Sessions shared with your coach or your team
Who is LapViz for?
- For drivers Karting, car or motorbike: time your laps, see where you lose time corner by corner, compare yourself with the other drivers and share your sessions. Free.
- For mechanics and engineers Read the data of every logger, compare sessions and setups channel by channel, compute your own channels and note the setup of each run. Free, in the browser.
- For coaches Drivers ask you, you coach them between two runs with their data and three instructions on the lap. Free for coaches, no commission.
- For team managers All the sessions of your drivers in one place, live timing from the pit wall, private competitions and sharing you control. Free for kart, car and bike teams.
- For organisers and clubs Live timing without transponders, time attack competitions on any circuit and the lap records of your track: free tools for clubs, organisers and circuits.
- For parents Time your child from the side of the track, let the family follow the session live, see the progress circuit after circuit and share it with the coach. Free.
The apps
- LapViz Stopwatch Time several drivers on your phone, share the lap times live with the other timekeepers and let anyone follow them on Open Live Timing. Free on Android and iOS.
- LapViz app Turn your phone into a free GPS lap timer for track days and karting: circuit detection, live predictive delta, voice callouts and sessions in the cloud.
- LapViz Studio Analyse the files of your data logger or lap timer in the browser, also offline: lap overlay, delta, channels, track map, math channels and on-board video.
- AiM XRK viewer Open the .xrk and .xrz files of your AiM logger (MyChron, Solo, EVO...) in the browser, without Race Studio: laps, channels, GPS track, video and comparisons.
- Video overlay Add telemetry gauges to your on-board video: track map with ghost, lap times, delta, braking points, G-meter, speed and RPM, ready for your video editor.
- Live timing Follow lap times live in a browser: shared timing with LapViz Stopwatch and Open Live Timing for the timing of the circuits.
Your session, live on Open Live Timing
Every shared session of LapViz Stopwatch has its live timing page on Open Live Timing, the live timing platform for all motorsport. Share its link: drivers, parents, the team and the sponsors follow the session in any browser, from the pits or from home.
- Positions, last and best laps and gaps, updated at every passage
- The laps of every timekeeper of the session on one leaderboard
- A short link, olt.live/s/ followed by the code of the session
- Nothing to install and no account for the viewers
By data logger and by use
- Race Studio alternative Analyse your AiM .xrk files without Race Studio 3: lap overlay, delta, splits, math channels, G-G diagram and video, free in the browser, on a Mac too.
- Unipro analysis Open the .uni files of your Unipro UniGo laptimer in the browser: laps, sectors, every channel, track map, lap comparison and circuit leaderboards.
- Alfano analysis Open the archives of your Alfano laptimer in the browser: laps, GPS track, speed, RPM, lap comparison, and the leaderboards of the circuits.
- RaceBox analysis Open the CSV exports of your RaceBox Mini or Micro: laps, GPS track, speed, G-forces and lap comparison, then compare yourself with the other drivers.
- GoPro lap times Drop the video of your GoPro with GPS: LapViz finds the laps on the circuit, draws your speed and line, and syncs the video with the data of your logger.
- GoPro telemetry overlay Turn your GoPro files into an on-board video with lap times, delta and track map, with or without a laptimer. Your video is never uploaded.
- GoPro 3D replay Drop the video of your GoPro: LapViz replays your laps in 3D on the satellite view of the circuit, against the ghost of your best lap. Free.
- Lap analysis See where you lose time in each corner: ideal lap from the mini-sectors, braking points, minimum speeds and your progress on each circuit.
- Time attack Create a time attack on a karting or racing circuit: the drivers ride when they want during the period, their best laps fill the standings automatically.
- MyChron analysis Free MyChron data analysis in the browser, on PC or Mac: open your .xrk files without Race Studio, compare laps, read every channel, replay them in 3D.
- VBOX analysis Free VBOX data analysis in the browser: open the .vbo files of your Racelogic VBOX or of any app, compare laps, read every channel, replay them in 3D.
- RaceChrono analysis Analyse your RaceChrono sessions on a PC or a Mac: open the .rcz file free in the browser, keep the laps of RaceChrono, compare them, replay in 3D.
- Harry's LapTimer analysis Analyse your Harry's LapTimer sessions on a PC or a Mac: export them in VBO, open them free in the browser, compare laps and replay them in 3D.
- TrackAddict analysis Analyse your TrackAddict sessions on a PC or a Mac: open the Raw CSV of the app free in the browser, with its laps and OBD channels, and replay in 3D.
- QStarz analysis Analyse the sessions of your QStarz LT-Q6000 online: open the .rcnx file of QRacing free in the browser, compare laps, read the G and replay in 3D.
- Lap timer data analysis Free data analysis software for the files of your lap timer: AiM MyChron, Alfano, Unipro, RaceBox, QStarz, VBOX, TrackAddict, RaceChrono and GoPro.
- Software comparison The best karting and track day data analysis software compared: LapViz, Race Studio 3, VBOX Test Suite, RaceChrono, Harry's LapTimer, TrackAddict, RaceBox.
On lapviz.com
- 3D replay Replay your session in 3D on the satellite view of the circuit, against a ghost. Free, no account needed.
- Circuits Lap records, leaderboards per category and corner guides of the karting and racing circuits.
- Supported formats The data loggers, lap timers and apps whose files LapViz imports.
- Developers The LapViz API, personal API keys and the open source timing libraries.
- About LapViz What is LapViz?