Observed arrival · 2026-08-22
Windshift turns sailing logs into replayable fleet races
A free, nonprofit platform for uploading sailing tracks, replaying races, and comparing vessels using wind, speed, polar, and fleet data.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Why it surfaced
Windshift can turn NMEA 0183 logs and AIS data into a replayable view of an entire race, with metrics including VMG, true wind, polars, heel, and leeway. It is an unusually specific tool that lets sailors keep uploaded tracks private, share them, or study the fleet together.
A free, nonprofit platform for uploading sailing tracks, replaying races, and comparing vessels using wind, speed, polar, and fleet data.
Observed signals
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Editorial observations of this landing page, not a rating.
⊠LoginAccess appeared gated
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
One card from the complete issue