The calculators here run entirely in your browser, so they need JavaScript switched on to do anything useful - the written guides don't, though, and they work through the same rates, soft pity curves and banner mechanics in plain text:

Genshin Impact: wish probabilities · the deep dive

Honkai: Star Rail: warp probabilities · the deep dive

Zenless Zone Zero: signal probabilities · the deep dive

Wuthering Waves: convene probabilities · the deep dive

Arknights: Endfield: pull probabilities · the deep dive

Genshin Impact wish simulator

When Warm Winds Cavort: Vesna · Faruzan, Diona, Chongyun
Surging Ballad: Vodyanitsa · Faruzan, Diona, Chongyun
Epitome Invocation: Beyond the Chrysalis, Hymn of the Maelstrom · New Bough, Favonius Greatsword, Dragon's Bane, Winter's Heavy Heart, Breezeborne Refrain