What's a good free art program/software?

[Chere.]

I wanna find an art program that'll allow me to colour lineart (for the bucket of paint challenge). I moved into my college residence so atm I don't have access to my tablet or the software I use (SAI). Looking for one that's compatible for Mac.
Keep in mind that I don't have a mouse either so idk, something easy where you can just use something like a fill or bucket tool would be great.

 

[visibleghost]

medibang paint and fire alpaca are free, available on mac and easy to use

 

[Bowie]

Personally, pirating Photoshop was the best creative decision of my life, so I have to recommend it if only for its popularity, but I've never bothered using anything else, so I can't really say.

 

[Chere.]

medibang paint and fire alpaca are free, available on mac and easy to use

I've considered Fire Alpaca since I've heard good things about it Ty for your suggestion

- - - Post Merge - - -

Personally, pirating Photoshop was the best creative decision of my life, so I have to recommend it if only for its popularity, but I've never bothered using anything else, so I can't really say.

I actually don't really like photoshop haha, but thanks for sharing

 

[Corrie]

GIMP is good but it's like Photoshop so I dunno if you'll like GIMP. xP But it's free so hey.

 

[hzl]

I used to use PaintShop Pro ALL the time back when Jasc owned it. It's sort of a simplified version of photoshop crossed with paint (from what I remember) I think Corel purchased the rights to it so now it's Corel PaintShop Pro
I use photoshop now but if you're not keen on that then possibly give PaintShop pro a go
Of course you'd have to torrent it to have it for free which is the only downside

 

[KaydeeKrunk]

Fire Alpaca for me works really great.

 

[Sgt.Groove]

Krita is a really good program, even on mac it works really well ?ω?

 

[Buttonsy]

IDK if it's Mac compatible or not, but I really like Medibang Paint Pro.