APEXTRACEOpen analyzer →

Telemetry lap analyzer for sim racers

See exactly where
you’re losing time.

Drop in a telemetry file you already have — MoTeC .ld/.ldx or a generic CSV — pick two laps, and read a time-delta trace that pinpoints every corner where you gain and lose. Web-first, multi-sim, no install.

Try with a sample lapAnalyze your telemetryNo account. MoTeC .ld or a SimHub/custom .csv — parsed in your browser.

How it works

  1. Load a lap

    Drop a MoTeC .ld/.ldx or a SimHub/custom CSV — or try the bundled sample lap.

  2. Pick two laps

    ApexTrace detects every lap. Choose a reference (A) and a comparison (B).

  3. See where time goes

    Read the delta trace with synced channels and pinpoint every corner.

What you get

  • Time-delta (variance) trace

    The cumulative seconds you gain and lose vs. a reference lap, plotted around the whole track. It ends exactly at the lap-time difference.

  • Synced speed, throttle, brake & steering

    Every channel aligned by track distance under one scrubber — hover anywhere to read both laps at the same point on track.

  • MoTeC & CSV, multi-sim

    Drop a MoTeC .ld/.ldx export or a SimHub/custom CSV. iRacing, ACC, LMU, AC, rFactor 2, RaceRoom — files you already have.

  • Zero-install, private by default

    Everything is parsed and rendered in your browser. No account, no upload — your telemetry never leaves your machine.

Try with a sample lap