Language/Multiple-languages/Culture/Productivity-tools-for-polyglots
Free resources for productivity around languages and cultures. Those mentioned in Language/Multiple-languages/Culture/Internet-resources-for-polyglots are not to be listed again here.
This page is updated from time to time, not frequently, not regularly.
https://www.gimp.org/ , https://krita.org/
For drawing. It's hard to say which one is better. You can try them both. They are open-source.
https://www.blender.org/
For creating 3D stuffs. Professional. It is open-source.
https://obsproject.com/
For creating videos and streaming. It is open-source.
https://www.flaticon.com/
High-quality icons. Good for visual memorisation of vocabulary for nouns and verbs.
https://mapchart.net/
Easily create customized maps.
https://fontforge.github.io/en-US/
Font creation. It is not an easy work.
https://wiki.gnome.org/Apps/Gucharmap
Character map of Unicode. For Linux and Mac. It is pre-installed in many Linux distributions. It is open-source.
https://www.inviska.com/rename/
For batch rename. There are also other tools. It is open-source.