Tiled (map editor)
Tile Studio (sprite+map editor)
http://tilestudio.sourceforge.net
Grafx2 (paint app)
http://pulkomandy.tk/projects/GrafX2
I.Mage (paint app)
http://www.memecode.com/image.php
Please post here another free GFX tools…
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old paid japanese program but now free
https://graphicsgale.com/us/
paint with layers: (paint.net)
https://www.getpaint.net
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I found these two tools by AdamStrange on itch earlier today. What’s great about FontMap is the save format is already parsable binary, and he gives a map out on the page so you can easily read the data from SD card.
I haven’t used them in any projects yet, but I have the next 4 days off from work so I’m sure I’ll be trying them out. 
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Pro Motion NG is a powerful tool for pixel art and there’s a free version:
https://www.cosmigo.com/
D-Pixel has an unconventional interface but it seems quite powerful. It’s free as well:
http://www.retroidea.com/?p=9
http://www.retroidea.com/DPixel_screenshot2.png
mtPaint is pretty ancient and not as fully featured but it runs well on any computer of the past 20 years and is available for Windows and Linux. Free too!
http://mtpaint.sourceforge.net/
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Yes, I am! Are you active in the demoscene too?
I do pixel art and pokey music on XE/XL…Do you have XE???Maybe we can do something on Pokitto too :).Some gfx compo…
No I don’t have a XE. Only STE, Jaguar and Lynx 
I’ll be happy to do some graphics for the Pokitto as it seems to be a cool little machine, I just need to get my hands on one at some point… and find some time for it!
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