Treecapitator by DaftPVF, bspkrs, Lunatrius
Treecapitator is a mod that scares trees. Seriously, they are terrified of it.
tweak util opensource
Vanilla Plus by Cricket, PZ77
We take the things from minecraft that don't get the love they deserve and make them a great aspect to your experience
Vein Miner by portablejim
A mod to help mine veins of ores by mining blocks of the same type in a chain reaction, giving you the blocks at the end. It is inspired by Connected Destruction by Bspkrs.
WorldStateCheckpoints is a client mod that allows you to create world saves for your SP worlds.
clientside opensource backup