Gimel Studio is a free and open-source, non-destructive, node based image editor for Windows and Linux. It is currently still in beta and work in progress. It shouldn't be used for heavy production work as the internals are changing quickly and there could be bugs.
The latest update, version 0.5.2 beta was meant to be a bug-fix release focused on improving stability, visuals and usability.
What's New & Improved in v0.5.2 beta
Show rendered image preview as backdrop of Node Graph
I added a new feature to toggle showing the rendered image as the node graph background. With this setting enabled, the view-port does update (very slightly) slower, but some may enjoy the trade anyway.
WIP MacOs support
MacOs support was tested, but isn't quite ready for usage. There are some know issues with Gimel Studio on macOs, so binaries are not yet provided for MacOs. However, you can always build it from source yourself. :)
New Crop Node
Thanks to @iwoithe, a new Crop node was added with the option for a square or circular crop.
The Next Step of Gimel Studio
We're currently planning the next big step of Gimel Studio development to make it a truly usable non-destructive, node-based image editor. The current version of Gimel Studio is a very good experimental prototype which we hope to use to create even better versions of Gimel Studio in the future.
You're welcome to join the Gimel Studio Discord, where you can present your ideas and thoughts and/or help out with development too. Keep an eye out for an update on this in the coming months! :)
Download v0.5.2 beta
You can download the latest release here. Thank you!