Design Spells is a curated collection of micro-interactions and small interface details — the kind of easter eggs and playful animations that don't show up in a screenshot, only in actual use.
It's one of the few resources that isolates this specific layer of design (the interaction, not the layout or color palette), which is exactly the layer that's hardest to study from static inspiration sites.
Best for UI and product designers who already have their layout and visual direction settled and are looking specifically for polish — the last-mile details that make a product feel considered.
It started as a Twitter account and still reads that way — short entries, no deep breakdown of how each interaction was actually built, so you're studying the effect, not getting an implementation guide.
Design details that feel like magic.