Uncrafter
JoeEnderman

Adds an uncrafting table

Sneeker
AntumDeluge

An explosive nuisance.

Protector Redux
sorcerykid

An efficient and flexible node-based protection scheme for multiplayer worlds

Item exchange shop
Krock

Provides a simple exchange shop (currency compatible)

Technic Transporter
Fruitsnack

Mod that adds a technic-powered HV transporter

S Potions
Stakbox

Adds a simple potion brewing system for MTG. Includes API for adding custom potions.

rtp
bookgirl

Random teleport commands (/rtp and /wild)

Offline Phantoms
Kimapr

Players leave "phantoms" when leaving; other players can take items from those

LDF Race And Parkour
lister

Race/Parkour Timers and Record Tables

obsidian
Giga_M

more uses for obsidian

Frames
opfromthestart

Frames from Technic since it was removed.

Realm Lamp
GenesisMT

A rainbow gradient block for decoration and with differents speeds.

Leather Armor
X17

Adds an armor made of leather

My Lava Sponge
Don

Soaks up lava

Random (Useful) stuff
pl608

A library that adds well... Random Stuff

Mycorners
Don

Put decorative corners on blocks.

CSperson's Simple Pebbles
CSperson

A very simple mod that adds natural detritus. Doesn't do much besides that.

Archaeology
SkyBuilder1717

Adds an looting and API in archaeologing

Hardcorebrix
drkwv

Adds durable building materials that won't break on a first dig.

doorbell
Miniontoby

A doorbell mod with sound

Technic Recycle
DumbDave961

Recycling recipes for Technic items.

New Biomes
Arkatron

If you like underground biomes, this thing is for you.

Throwable Snowball
ComputeGraphics

Adds a throwable Snowball

Tac Nayn
GreenXenith

Adds Nyan Cat's evil twin, Tac Nayn (and a gray-scale rainbow).

Subway Tracksides
GWLT

Add tracksides for your subway map.

bridgemaker
mike.monkeybiter

A refillable machine to easily create simple block bridges across caverns and valleys.

Top players
Giga_M

Adds a kill, deaths, and kd counter to players.

Beautiful Boulders
regulus

Procedurally Generated Rocks with (pretty) Accurate Collision Boxes

Hoverboard
mazes

Hoverboards

Metatool
SX

Provides API to register node metadata tools along with few useful tools

Player Speed
Boot

Displays the player's speed (walking, running, falling) in m/s and km/h in the HUD.

Grimoire
monk

Override tool functionality during runtime

MathPlot
kyleclaassen

A tool for constructing mathematical curves/surfaces/solids.

My Stacks
Don

Changes the max number of items in each stack

Assets_Warehousepart2
JALdMIC

Part 2 of Assets_Warehouse

Technic Grass Clean
1F616EMO

A tool like chainsaw, but cut grass, not tree.

Atium
GenesisMT

A strange a ore with tools.

Good Sneaking
zempik10

Makes the player have better sneaking.

Cute Pie
Don

Cute blocks

Snow Cones
GreenXenith

Some simple flavored snow cones.