Symmetool
Nigel

Symmetric building tool.

Refill
1F616EMO

Refill your hand slot after using up all items in that slot

Copier
1F616EMO

A tool to copy and paste nodes from a file or from a tool

flux's worldedit maze generator
fluxionary

a command to create 2d mazes using worldedit.

Dirt Tunneler
Neuromancer

Makes dirt deeper and you can tunnel through it just by walking through it. Press spacebar/shift to tunnel upward/downward with auto placed ladders.

My Mason Hammer
Don

A hammer to make stairs, ladders and footholds

Simple streetlight spawner
mt-mods

Adds various streetlight "spawners" (5m tall, supports multiple pole materials and light sources)

Global Patterns
Albert-Dimensioner

Place a node to generate a pattern from that node using that node

Technic use Battery
1F616EMO

Use energy from RE batteries in the inventory

scaffolding (flux's version)
fluxionary

scaffolding, to help in building projects.

Hopper Compatibility
Bob64

Adds hopper compatibility for other mods like technic, elepower and even connected chests!

Stack Slabs
TumeniNodes

Stackable slabs

Wrench - node rotation tool
Argos

A better screwdriver.

Disable Build Where They Stand
LMD

Disables placing blocks at places where they would collide with a player

Replacements
BuckarooBanzai

Replacement/placeholder blocks intended for schematics

WorldEdit Undo
Hybrid Dog

Undo and Redo executed WorldEdit chat commands

Stair Pick
BrandonReese

This is a specialized pick for making stairs.

Pick And Place
BuckarooBanzai

Pick and place utility

Extra Wool Stuff
Impulse

Adds more wool items and nodes

Colored Chests
SkyBuilder1717

Adds a colored chests!

Nodrown
Minisleep

Disables drowning, so you can swim and live underwater forever.

End Portal Wand
TomCon

Adds a wand item for easy placement of end portals on right click.

gooey mess reborn
timm

a funny addon that is bigger,better, and a lot more of a goofy time

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.

WorldEdit
sfan5

In-game world editor. Use it to repair griefing or create awesome buildings in seconds.

Digtron
FaceDeer

Adds components for building modular tunnel boring machines

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Camps
ApolloX939

Bring your base with you

Extended Placement
gamefreq0

Allows placing nodes below/behind the closest node to where you are looking, when you're looking at the air where said node would go.

Geodesy
SFENCE

Geodesy tools and items

Electric Screwdriver
skiscratcher

A supplement to screwdriver, to speed up placing blocks in a repetitive way

EZ Voxel Builder
MAIgtoS

Allows player to easily place, remove, copy and paste nodes (blocks) in bulk.

Invsaw
mt-mods

adds a circular saw feature and button to the unified_inventory

Knapping Mechanics For VoxeLibre
SOS-Games

Adds knapping mechanics API inspired by Vintage story

vexcazer
AiTechEye

Ultimate build+mine & admin tool

Digibuilder
BuckarooBanzai

Build nodes with digiline commands

Falling Dirt
karlexceed

Makes dirt nodes fall just like sand and gravel.

Knapping Mechanics
csirolli

Adds knapping mechanics API inspired by Vintage story

Stone Age Integration Pack
csirolli

Adds basic stone age & survival tools and makes the start in the world harder

NC Pumbob
Winter94

adds carvable and sealable pumice bobbers/floaters