View IGC files in your browser
The log a glider's or a paraglider's flight recorder keeps, as competitions and online contests ask for it. Open an IGC right here on a map. The file never leaves your device.
Or drop it anywhere on this page
What you'll see
Your flight opens on a map with its altitude and speed charted under it, and its pilot, glider and task in its details.
- The flight on the map • Its task's turn points
- Altitude and speed • Hover to see where
- Show details • Pilot, glider, day and time aloft
- Export • GPX, KML, GeoJSON and CSV
About IGC
The FAI's International Gliding Commission set out the IGC format for flight recorders, so badge flights and competitions could be checked. Glider, paraglider and hang glider instruments and apps like XCTrack, SeeYou and XCSoar save it, and WeGlide and XContest take it.
An IGC is text: H records name the pilot, the glider and the day, C records the task and its turn points, and B records the flight itself, a fix every second or few, with its time, place, pressure altitude and GPS altitude. A G record signs it so it can be checked.
Filepeek draws the flight over OpenStreetMap with its task, and charts its altitude and speed under the map. Hover the chart to see where each moment was, Show details gives the pilot, the glider, the day and the time aloft, and Export saves the flight as GPX, KML, GeoJSON or CSV.
IGC flight log
.igc
Format
- MIME type
- text/plain
- Made by
- The FAI's International Gliding Commission
Inside the file
- Holds
- A flight, a fix at a time
- Each fix
- Time, place and two altitudes
- Headers
- Pilot, glider and day
- Built on
- Text records
Opens in every browser
Filepeek opens IGC files on a map in Chrome, Edge, Firefox and Safari. On their own, browsers download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open IGC
- WindowsSeeYou and XCSoar
- MacNo app built in opens it • WeGlide and XContest show it on the web
- iPhone and iPadSeeYou Navigator
- AndroidXCSoar and XCTrack
Questions
How do I open an IGC file?
Drop it on this page or choose Peek an IGC. The flight opens on a map, its altitude charted under it.
Does it check the G record?
No. A G record is checked with its recorder maker's own program, and Filepeek only shows the flight.
Can I convert IGC to GPX or KML?
Yes. Open it, choose Export, then Save the features as GPX, or as KML for Google Earth.
Which altitude does the chart show?
The GPS altitude when the recorder logged one, or else the pressure altitude.