I would like to find software that will allow me to create a time-lapse of a webcam.

[Ptah]

For example, a frame grab every 30 seconds for 24 hours.

Is there free software that might work?

[ramen]

1. imovie will get you there if you are a mac user nt

[Ptah]

2. Shucks.

Thanks, ramen.

Win 10 here.

[unweird]

3. Wyze Cameras

Granted this isn’t a software solution but a nice hardware solution on the cheap side. They have a camera under 30 bucks that I have used for just that purpose in a snow event.

[Make7]

4. You might be able to do that with VLC Media Player.

If you have a PC you can dedicate to the task, you could display the webcam full screen and then do a desktop capture to a file. I am fairly certain that you can adjust the frame rate above 1fps (might depend on the VLC version) by setting it as a decimal fraction. I never tried doing super slow frame rates, so you might have to play with it to see what is (and isn't) allowed.

I haven't done any screen capture stuff with VLC for a long time, so things may be different in the more recent versions. Regardless, it is a handy program to have and it's free, so I thought it might be worth trying.

[canetoad]

5. You might find something here

Also has instructions to extract frames using VLC and FFmpeg.

https://www.videoproc.com/video-editor/extract-frames-from-video.htm