When comparing Flameshot vs Spectacle, the Slant community recommends Spectacle for most people. In the question“What are the best screen capture tools for Windows?” Spectacle is ranked 10th while Flameshot is ranked 14th. The most important reason people chose Spectacle is:
Spectacle is licensed under MIT with source code available on [GitHub](https://github.com/eczarny/spectacle).
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Pin tool
Pin screenshots on screen so that you won't have to scroll up and down to find something in a long document all the time.
Pro Edit and copy on the fly
Write texts, draw rectangles, circles, and arrows on a screenshot and copy all on the fly or save the edited picture to disk. You can change colors, sizes and widths of all the elements the tool provides.
Pro Upload to Imgur
Take a screenshot and upload to Imgur with a click.
Pro Free and open source
Spectacle is licensed under MIT with source code available on GitHub.
Pro Simple hotkeys
Spectacle offers easy-to-remember preset hotkeys.
Pro Mouseless
All windows in Spectacle can be controlled with keyboard shortcuts, so no mouse is needed. This makes for a fast way to control windows.
Pro Great UX
Spectacle is easy to use and configure. It's plug and play.
Pro Low footprint
Spectacle only uses up 18-19 MB of RAM, which means there is not much overhead by using this app.
Pro Multi-monitor support
Pro 7+ years of use
Using it for 7 years
Cons
Con No delay for area shot
It can not add a delay for an area shoot.
Con Not maintained
The software is free, but no longer seems to be maintained.
Con Impossible to add new functions
While keyboard shortcuts can be changed for the available actions, there is no way to add custom actions which in turn limits the functionality of the app.
Con Limited window sizing capabilities
You can use 1/2 of the screen vertically and horizontally (divide into 4 parts). You can also use the screen in thirds too, but only the left and right third: you can't use the 1/3 in the center. There is no way to do a more granular distribution.
Con Breaks on macOS High Sierra / Chrome or Firefox
Doesn't support side by side windows.
Con Doesn't work with any Adobe products
There are some apps like Adobe Reader that do not work with Spectacle. Basically, any app with a heavily customized UI that breaks OS X accessibility will not work correctly under Spectacle.