SafeNBT
By
jojodmo — A simple cross-version API for editing NBT tags, safe for many versions of Minecraft! +Commands
FlatBedrock
By
TeamVK — Generate flat bedrock layer (you can specify the thickness/layers)
RPG Chest Premium
By
Gilles_M — [1.12.2 - 1.16.]Create Unique RPG Styled Chests - Fully Customizable (in-game GUI) - Unique Features
WeatherNews
By
rmellis — WeatherNews is a simple plugin that shows weather information in chat as it changes.