https://mcreator.net/ - MCreator is a software used to make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons, and data packs using an intuitive easy-to-learn interface or with an integrated code editor.
It is used worldwide by Minecraft players, aspiring mod developers, for education, online classes, and STEM workshops.
Download old MCreator binary distributions on https://mcreator.net/download/all
Old versions changelog: https://mcreator.net/wiki/changelog-older-versions