Trims to the flight
Takeoff and landing are found for you, and the time on the ground is cut. Drag the handles on the altitude graph to change where the track starts and ends.
IGC Editor
Cut the time on launch and the walk out from your IGC file, or combine a split flight, or your hike from Strava and your flight, into one track. In your browser, and your files stay on your device.
Your files are read and edited in your browser. They are not uploaded to SkyViz.
What the IGC editor does
Combines any GPS files
Add IGC, GPX, FIT, or KML files, such as a hike from Strava or your watch and the flight from your vario. They are put on one track in time order.
Your vario wins overlaps
Where files cover the same time, the IGC file is used, so a watch that kept recording doesn't replace your flight. Between two IGC files, the one that started first is kept.
You get one new IGC file. It keeps position, GPS and pressure altitude, and fix accuracy for every point. Other instrument data, such as tasks, events, and extra sensor columns, is not carried over.
To only look at a flight, use the IGC viewer. To turn the new file into another format, use IGC to GPX or IGC to KML.
Frequently asked questions
How do I trim an IGC file?
Drop the file on this page. The editor finds takeoff and landing and cuts the time before and after. Check the track, drag the handles on the altitude graph if you want to change it, and click Download IGC file.
How do I combine my hike from Strava with my flight?
Export the activity from Strava as a GPX file, using Export GPX in the activity's menu, and drop it on this page together with the IGC file from your vario. Files from Garmin and other watches work too, as GPX or FIT. Where the two overlap, the flight from your vario is used, and the hike up to launch is kept.
Do I need to trim my flight before I upload it to XContest?
Usually not. XContest works out the flight from your track itself, and some of its rules ask for a valid G record, which an edited file no longer has. Submit the original file from your instrument, and use the edited file for your logbook, replays, and sharing.
What if the takeoff or landing it finds is wrong?
Drag the handle to the right place, or use the arrow keys for one point at a time. Takeoff is found from speed, so a drive up a mountain road can look like flying. If it finds no flight at all, the whole track is kept and you trim it by hand.
Will an edited IGC file pass signature validation?
No. A flight recorder signs a file with a G record, and that signature only matches the exact content it was made for. Trimming or merging changes the content, and only the recorder can sign, so the new file has no G record and any validation check will fail it.
Can I combine files from different days?
If a file just has the wrong date, yes: the editor offers to move it to the date of the other files and keeps its clock times. An IGC file stores one date, and each point only has a time of day, so it can't hold separate days. A trip that crosses midnight UTC works without moving anything, with a gap of up to six hours.
Are my files uploaded?
No. Your browser reads and edits the files on your device. A flight is only stored if you create an account and add it to your logbook.