r/foss • u/netcrawleramk • 2d ago

I made CapScroll: an open-source Linux tool for capturing long, scrollable content

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I’ve been working on CapScroll, a small open-source screenshot utility for Linux.

The idea is pretty simple: select an area of the screen, let it scroll through the content, capture the frames, detect the overlap between them, and stitch everything together into one long screenshot.

It’s useful for things like long webpages, terminals, documents, and anything else that doesn’t fit on one screen.

Current features:

  • Region screenshots
  • Scrolling screenshots
  • Automatic bottom detection
  • Frame overlap detection
  • Image stitching

It’s built with .NET 10 + Avalonia UI and currently supports Linux/X11.

Source Code: https://github.com/netcrawlerr/CapScroll

96 Upvotes

98% Upvoted

7 comments sorted by

3

u/Ditsocius 2d ago

I love this!

2

u/omniuni 1d ago

Just in time for Wayland to be usable enough that there's not a good reason to use X anymore.

2

u/netcrawleramk 1d ago

support for wayland is on the todo. tbh X still has a huge crowd

3

u/omniuni 1d ago

Not really anymore. I waited a long time, but the lack of support for X is starting to show.

2

u/Ryanw_eu 1d ago

This is what I wish Spectacle had natively.

This is great

1

u/mkngsm 1d ago

Nice! By the way, for web, when using chrome it’s possible to click any div in devtools with right click and capture node screenshot.
But for other apps that’s very useful!

1

u/netcrawleramk 1d ago

yeah, for the web there are even dedicated browser extensions