Size changer!
Aa1a

Change your size with size_editer and become small and big and Microscopic too

Worldedit Big Schematics Handling
IRI

World Edit commands allowing to create and place large schematics, as well as maintain a command journal for undoing past actions.

More Triggers
SkyBuilder1717

Adds more triggers for Awards

Minetest Object IDs (API)
zeuner

Persistent object-IDs for developers

K WorldEdit Command Builder GUI
ketwaroo

Alternate worldedit frontend to build and run commands that is agnostic of inventory.

Chest with Everything
ROllerozxa

Adds a chest node containing all registered nodes, items and tools.

Cave Generator
Noordstar

A custom cave generator engine

WorldEdit Wall Block
SkyBuilder1717

Adds block and item for making big structures easily as possible.

Superpickaxe
Hybrid Dog

A tool to remove any pointable node and reveal debug information

Ediblestuff API
lazerbeak12345

A unified API for making items, tools and armor edible. Eat armor while wearing it!

PerfHUD
Juri

Adds an HUD which shows some performance stats.

Simple Models
AntumDeluge

Very simple models.

Too Many Aliases
ThePython10110

Adds aliases to every item/node in MineClone to make them match MineCraft so you can stop forgetting that mcl_mobitems:ender_pearl should be mcl_throwing:ender_pearl.

Noriel Sylvire's Minerals Core Modpack
Noriel_Sylvire

An API for automatically registering recipes, nodes and ore generation.

Scripted World Editor
Neuromancer

API that allows you pass in scripting tables to fill a series of shapes of different sizes with different nodes

Library Mount
Panquesito7

API Framework for mounting objects.

Lush
rstcxk

fully featured shell interpreter

Template to Easily Make Fancy Voxelized Models
Noodlemire

Provides voxelmodel.obj, a model designed to be shaped by changing its texture, in order to easily create fancy voxelized models.

Advanced Rangefinder
sorcerykid

Extends the Minetest API with search capabilities for entities

Barrier
erov

Barriers with optional placement restrictions.

List Items Chat Command
AntumDeluge

Chat command that lists registered items & entities.

Get Item
Wuzzy

Allows you to get all items

Meseconometer
DS

Device to meassure time of mesecon signals in globalsteps

MineTest FileManager (MTFM)
Zemtzov7

Formspec-based file manager with text editor and image viewer

Lua Button
Zemtzov7

Button that executes custom lua code on rightclick

Node entity library
The4spaceconstants

Library for functional node entities.

Playerhealth
Simon

fill your hearts (HP)

Quest Framework
TeTpaAka

Simple framework to define quests.

Goxel Tools
MisterE

Allows using goxel to create Luanti builds. Saves a palette of node colors for import into Goxel and allows importing Goxel models made using said palette.

Chromakey
SkyBuilder1717

Adds an chroma blocks for videos or photoshop.

Kits
Pyu

An API for creating kits

Tasks Framework
AntumDeluge

Framework for adding tasks & quests.

Debugging Console
sorcerykid

Provides an in-game HUD to easily monitor debug output

Stopwatch
sorcerykid

Stopwatch is Lua-based benchmarking API for Minetest developers

Minetest Systemd (API)
Piezo_

Debugging utility and compatibility tools for server owners and/or modpack creators

Key Combos
epCode

A lib for adding actions when certain keys are pressed in order.

Oddly Sized Checkerboard Testnodes 2
erle

Adds oddly sized checkerboard test nodes.

action queues
fluxionary

provides an API for queuing things for batch processing w/ various ways to specify the batch "size".

Riddance
Blockhead

Hide or rid yourself of unnecessary items from games and mods without any code

Modding Commands
DragonWrangler

Adds Hopefully helpful commands for modding