Now in private waters

Log every passage.

Helm is a refined logbook for sailors. Track the sail, study the data, share the story — all in one calm, well-charted place.

For yacht owners, day sailors, racers and passage-makers.
Track

Every tack, every mile.

Drop a GPX from your plotter or phone. Helm renders the route on a calm, dark chart and computes the numbers that matter.

Analyse

The story the data tells.

Distance in nautical miles. Duration to the minute. Average and peak speed in knots. Speed traced over time, in a single quiet line.

Share

A logbook worth showing.

Post a sail to your crew or the wider fleet. No vanity metrics. Just the route, the boat and the day you had on the water.

A sail, well kept

The kind of logbook you'd actually want to flick back through.

Each trip is a quiet, considered page. Map up top. Stats laid out like brass instruments. A line for the day's caption, and the boat that carried it.

  • GPX import from any plotter or app
  • Auto-computed distance, duration, average and max speed
  • Casual, Passage and Race sail types
  • Share publicly, with the crew, or keep it to yourself
Passage

Hamble to Yarmouth

Distance
22.4nm
Duration
5h 40m
Avg
3.95kn

Light morning breeze, building from the SW after lunch. Tide carried us nicely past Egypt Point.

@ethan · Aurora · Dufour 41

"For sailors who measure more than miles."

The Helm philosophy

Track the sail. Share the story.

Free while we're sailing the early miles. No ads, no clutter, no orange.