Aquamarine
RasPiManiac

Adds Aquamarine ore, ingots, etc.

Nodrown
Minisleep

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

Fast Build Tool
playduin

Tool for fast box building

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.

Camps
ApolloX939

Bring your base with you

Simple Tape Measure
OgelGames

Adds a simple tape measure.

My Mason Hammer
Don

A hammer to make stairs, ladders and footholds

Trails
X5Dragonfire

Allows you to make paths in grass with ground roller

Build Easy Box
epCode

A handy tool allowing the creation of large structures with minimal effort (in survival!).

Scaffolding
Semmett9

Adds wooden and Iron scaffolding.

gooey mess reborn
timm

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

Nodecore Paint
Kimapr

Paint anything on node surfaces

vexcazer
AiTechEye

Ultimate build+mine & admin tool

Disable Build Where They Stand
LMD

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

Hotbar Switching
frogTheSecond

Implements a way to switch your hotbar to another row. Inspired by better than adventure.

Staffs
CalebJ

Staffs with various uses

scaffolding (flux's version)
fluxionary

scaffolding, to help in building projects.

Fancy Place
DragonWrangler

Better block placement system that allows you to place blocks even when not pointing at the connecting face.

Falling Dirt
karlexceed

Makes dirt nodes fall just like sand and gravel.

ExplorerTools All (Tools place item on right click)
Kilarin

Tools place item in next inventory slot on right click

Touch interaction configuration
j-r

Configure item touch_interaction property to your preferences

Wings
xXNicoXx

Wings is a mod whiche allows server owners to give players fly privs while holding the wings (Like binoculars) made by xXNicoxx

Handle Schematics
Sokomine

A library to make creating and placing saved areas easier.

New Horizon
newrizen

A simple game, with world travel, unique mechanics and mysteries.

portal gun
Giga_M

add a portal gun

Turtlebots Classroom
jmole

A game with only turtlebots, to prevent kids from getting distracted by other blocks.

worldedit terraform command
Mjokfox

a terraform command for worldedit

Invsaw
mt-mods

adds a circular saw feature and button to the unified_inventory

Lava Furnace for Mineclonia
bgstack15

Furnace that is fueled by nearby lava, for Mineclonia

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.

Hopper Compatibility
Bob64

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

End Portal Wand
TomCon

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

Better Locks
SkyBuilder1717

Adds locks and locked doors

Builders wand
rstcxk

Building tools

More Snow
Sokomine

snow and wool for stairs - nicer winter landscape and snow-covered roofs

BridgeTool
Kilarin

Adds a new "bridge tool" that makes placing stone (or glass, earth, or any material) while building a bridge in no-fly mode easy.

Lategame Amulets
Comet

A cohesive progression system that builds on Mobs Monster

Cozy Lights
SingleDigitIq

Early alpha. Improves the way light sources(torches etc) behave and allows to create huge lights, literal projectors with just a mouse click, light map will be computed for you.

WorldEdit Wall Block
SkyBuilder1717

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

Colored Chests
SkyBuilder1717

Adds a colored chests!