The whole ride, at a glance
One plot. Every channel. Pan, zoom, done.
Power, heart rate, cadence and speed share a single timeline with a draggable selection band. Box-zoom into a sprint, reset, and read your numbers off the axis.
Load a .fit or .srm ride, see power, heart rate, cadence and speed on one timeline, and pull out your strongest intervals — fast, local, and free.
Power, heart rate, cadence and speed share a single timeline with a draggable selection band. Box-zoom into a sprint, reset, and read your numbers off the axis.
Modeled on the ride plot and Find Best Intervals of Golden Cheetah — stripped down to the parts you reach for every session.
Power, heart rate, cadence and speed drawn together with a clear legend, on one shared time axis.
Instantly highlights the 45-second window with the highest average power — and runs automatically on every ride you open.
Pick a length and a count; get the top non-overlapping windows in a table. Click a row to highlight it on the plot.
Efforts are measured in real time, not sample count. Any window crossing a pause longer than ~3 s is rejected — a stop can't inflate a "best effort".
Garmin/ANT FIT and SRM PowerControl (v7). The loader is pluggable, so more formats can be added on request.
more on requestA frequency slider draws curves as finely as the file allows — full sub-second detail for high-rate data, never invented.
Move your whole library — or a filtered slice — between machines with a self-contained .gckdb file. Re-imports are safe.
Every ride lives in a local SQLite database on your own machine. No cloud, no account, no telemetry.
GNU GPL v3 or later. Read it, build it, fork it. Source lives on Codeberg.
A single Windows executable, or run from source if you prefer. Your rides stay on your computer.
One short email when a new version ships — new formats, new tools, fixes. No spam, unsubscribe in one click.