This one has both paid and free materials! Mostly composed of effects, transitions and hand-drawn icons.
Make sure to translate the page and read the contents of each post properly before you download, just to make sure it's free for commercial use or not!
39sora.com
My favorite for sure! There're quite a few materials free to use, mostly backgrounds, overlays and stuff like that.
Again, make sure to translate the pages and read the FAQ for usage permissions to avoid potential copyright strikes!
OKUMONO
A branch site of okumono, specifically for video materials! Such as effects, transitions, frames, backgrounds, animated overlays and this stuff!
Make sure to translate the pages and check the usage permissions of each material! Although most of it should be free to use.
OKUMONO＋V
This one has fancier designs more specifically for streaming! Overlays, backgrounds, chatboxes and stuff like that.
Make sure to translate the pages and check usage permissions before using each material!
