Align Akeru

Very simple and light addon that creates a grid on your screen to aid you in aligning and centering your UI. Align is totally resolution independent, and will create even grids no matter how you play.
WoWInterface
WoW Insider Review

LineemUP - creates draggable lines on the screen.
eAlign - also create a grid

Alt-Tab Toggle Cyprias

Alt-Tab Toggle (ATT) will force WoW to the foreground on events when you're alt-tabbed. Optionally you can choose to only play a sound when one of these events fire. Then you can tab back into WoW at your leisure.
WoWInterface, Curse

Be Gone Zlodo

Automatically and silently rejects any guild invitation or guild chart signature request, unless they come from someone in your friend list.
WoWInterface

BugSack Rabbit

BugSack eases the process of capturing bugs. It captures information about Lua errors that occurred during your play session. It aims to be invaluable to developers, and a useful tool for players that use beta-quality addons. BugSack includes a FuBar plugin that displays the last 5 errors in the tooltip. It can also bring up a frame to display all other errors for the current session, or for any other session. The text of the error can then be copied & pasted to a source outside of WoW (for example the forums) so that other developers can determine what's at fault.
Curse

Class Colors Phanx

Change class colors without breaking the Blizzard UI.
Config: /classcolors
WoWInterface, Curse

ColorPickerPlus jaslm

ColorPickerPlus hooks into the standard Color Picker to provide: text entry for colors (RGB and hex values), text entry for the alpha value (transparency/opacity), copy and paste of a single color, a movable frame, a color swatch for the color that you will be replacing, a color swatch for the copied color that may be pasted. With these enhancements, you can precisely describe a color and coordinate colors within and between add-ons.
WoWInterface, Curse

Corpse Saiket

_Corpse tells you the faction, online status, and other information about corpses you see.  That is, when you mouse over a corpse (after the player releases spirit), _Corpse automatically queries the server about who owns the body and automatically colors and fills out its tooltip like a regular living unit.
WoWInterface, Curse, Corpse Site

Cursor Saiket

_Cursor adds detailed, customizable cursor trails to your UI. If you've ever lost track of your mouse in a hectic battle, or if you're looking to put the finishing touches on your stylized UI, look no further. _Cursor uses World of Warcraft's built-in spell effects to offer a variety of preset cursor looks while leaving your system's resources free for more important things.
WoWInterface, Curse, Cursor Site

DayTrader Tekkub

Adds alt-click ability to item trading.
WoWInterface

Duh mikma

Duh is a simple tool for helping you remember things at selected situations such as on login, entering an instance, at a merchant, etc. Just select a situation and enter the text, the addon will show you the note you want to remember at correct situation. You can also select the note to be shown only once.
WoWInterface

EnhancedStackSplit kunda

Enhances the StackSplitFrame with numbered Buttons, a '1-Click Mode' and a 'Auto Split Mode'.
Curse

Equilibrium Notepad ZathrasEU

Useful little notepad. Each character has their own page, plus there is a shared page accessible by all characters.Toggle notepad by clicking the book icon. Both the icon and notepad can be dragged to any position you wish. Press Esc to take focus away from notepad (e.g. to type in the chat bar).
WoWInterface, Curse

ErrorMonster Rabbit

Small addon to block a few standard action errors from printing. Please note that it does not block the "Error Speech" that comes with them - you have to disable that in Sound Options. It was originally based on RogueSpam, but has since evolved drastically lately after people asked me to add some stuff to it. Not only does it come with a significant set of default filters, you can of course add and remove filters at will. Filtering does not necessarily mean that the errors are eaten; they can also be redirected to a sink, such as ChatFrame1-7, BigWigs, SCT (+Message), MSBT or Blizzards own FCT, of course, since I implemented sinks, I had to implement general error throttling as well.
WoWInterface, Curse

Flight Map Enhanced DarkStarX

This addon adds all flight locations as a list next to the Flight Map categorized by zones and sorted alphabetical. You can collapse a zone to not show the flight locations of that zone in the list. Additionally you can choose to always collapse all zones whenever the flight map is opened, this will reset any individuell collapse/expand settings you made before. Options are saved per character.
WoWInterface, Curse

FriendsWithBenefits Tekkub

FriendsWithBenefits automatically keeps your friend list in sync across alts and adds alts to your friend list for easy mailing.
WoWInterface, Curse

GuildMemberStatus Dridzt

Adds a visual status indicator (available, away, dnd) for online guild members to all the guild roster views. Shows guild member mouse-over tooltip. including: Class icon and name; Public note; Officer note (if permitted to view); Alt/Main names if LibAlts-1.0 is present.
WoWInterface

GuildRosterButtons suicidalkatt

Replaces the "two click" guild roster drop down menu with "one click" buttons.
WoWInterface

GupBigNumbers Gupp

Places a separator like a dot , comma or k in numbers that are greater then 1k. The separator is only placed in the user interface like Bank, Bag , Currency , PVP , AH and Vendors. So not in the combat log or floating texts.
WoWInterface, Curse

IgnoreMore mikk

IgnoreMore will: Let you ignore more than 49 players, Share the same ignore list between all players on the same realm (and faction), See when someone was ignored, Give a reason for why the person is ignored, NOT respond with "X is ignoring you" (unless the person was initially added to the system Ignore list before IgnoreMore was installed).
WoWInterface, Curse
Review: WoW Insider

IgnoreNotes Dridzt

Allows the user to add notes to the built-in Ignore List. With the advent of the Looking for Dungeon tool I found my normally empty ignore list filling up. This tiny addon was the answer to my need to know the reason someone ended up there.
WoWInterface, Curse
Review: WoW Insider

InFlight totalpackage

Simple flight timer mod. Auto-dismount, Takeoff confirmation, Automatically take a map note for flight master locations (requires Cartographer), Support for Druid-only and Plaguewood Tower flight paths.
WoWInterface, Curse

KeepingTabs Seerah

With the Guild UI overhaul in Cataclysm, the Guild tab is no longer part of the social window. This means two different keybinds, two different buttons in the UI, two different windows to keep track of both your guild and your friends. The social button that was in the micro menu on the action bar now opens the Guild UI, and the button that came with RealID next to your chat frame opens the social frame. It came up in our beta guild chat that this disconnect could be remedied by an addon, and KeepingTabs was born. Now, you only need to remember one keybind. You only need one window open on screen. And you can hide one or both of the on screen buttons. KeepingTabs will create two side tabs for the social/guild frames, allowing you to swap between them.
WoWInterface

LearningAid Jamash, spacemutant, Freydis88, talkswind

For all those times when you've just leveled up, retalented, or learned a new trade skill and you've had to page through your spellbook looking for all those new icons. When you learn a new ability, a new rank of an existing ability or (WoW 3.0 only) a mini-pet or mount, Learning Aid pops up a window with the new ability icon in it, ready to be dragged to your Action Bar.
Curse, WoWInterface

Leatrix Latency Fix Leatrix

Leatrix Latency Fix will reduce your online gaming latency significantly by increasing the frequency of TCP acknowledgements sent to the game server. For the technically minded, this is a script which will modify TCPAckFrequency. You will see reduced latency in many online games including World of Warcraft, Aion, Warhammer, Lord of the Rings, and more.
WoWInterface

Leatrix Plus Leatrix

A collection of fixes for the little things in Wow which I think are missing from the Wow UI. Block duels, Block guild petitions, Block party invites, Prevent bag automation when using vendors and mailboxes, Show a gold elite chain around your player portrait, Automatically accept resurrection attempts, Hide the target and focus target minimap blips, Hide the death effect (grey glow), Hide the netherworld effect (such as Invisibility), Remove the full-screen glow (handy for hiding the drunken haze effect), Hide zone text (such as 'Ironforge'), Hide subzone text (such as 'Mystic Quarter'), Hide duel messages in chat (unless the duel is yours), Hide dual-spec spam when you switch specs, Use classic enter key functionality in the chat window, Hide errors in the error frame (eg. 'Not enough rage'), Hide information messages in the error frame (eg. quest updates), Resize quest log detail text, Show your random dungeon cooldown, Hide the "Choose your role" window in the Dungeon Finder.
WoWInterface

Magic Screenshot Zhiva

Hides the UI and makes a screenshot in one keypress.
WoWInterface

MoneyTrail Ammo

Tooltip that contains the gold spent and gained this session as well as the gold on the rest of your characters on the realm and your total gold.
WoWInterface, Curse

MultiShot dlui, Dridzt, emelio

Automatically takes screenshots of memorable events in your World of Warcraft career including: level-ups and guild level-ups; achievements and guild achievements; reputation changes; trade window transactions; any rare/rare-elite mob kills; boss killshots in dungeons and raids.
WoWInterface, Curse

nibMicroMenu Nibelheim

nibMicroMenu is a text based Micro Menu.
WoWInterface

NPCScan Saiket

Tracks seldom-seen rare mobs by proximity alone, making the old “/targetexact …” macros obsolete. It has the same range as those targeting macros, but you won't have to mash any buttons. Just go about your business and let _NPCScan alert you when it finds something.
WoWInterface, Curse

oMirrorBars Haste

oMirrorBars is an add-on designed to replace the MirrorTimers (breath bar and so on). oMB is not a castingbar replacement.
WoWInterface

RangeDisplay mitch0

RangeDisplay is a simple range display addon. It is using spell range, item range and interact-distance based checks to determine the approximate range to your current target, pet, focus or mouseover unit (if enabled). The mouseover unit display can be anchored to mouse, or placed at a fixed position.
WoWInterface, Curse

Reflux kagaro, Ferndale

Reflux is a small lightweight profile manager. With the coming of dual specs, and people building ui compilations. I built this little manager. Its goal it to allow you to easily switch all your addon profiles in one fair swoop. For Addons that don't support profiles it emulates a profile. All emulations are done by the user and none come pre configured out of the box. The user chooses if he/she wishes to emulate a profile for any addon. Emulation is not needed for any addon that uses Ace2/3DB as profiles are built in.
Curse

Redeemer Ryplinn

This mod makes you say humorous messages whenever you cast a resurrection spell and serves purely to entertain you and annoy others.
WoWInterface, Curse

rIngameModelViewer Zork

Allows you to watch models ingame. It makes use of a new API function available in Cataclysm that allows you to view models even if they are not cached yet. That was not possible until now. The function used to display the model is: model:SetDisplayInfo(DisplayID).
WoWInterface

SilverDragon Kemayo

SilverDragon tracks rares. It'll remember where you last saw a rare mob, and will pop up a notification message when you get near one. It comes with a list of rares. Type "/silverdragon" to bring up the options, and use the "Import Data" button to bring 'em in. If you have nameplates enabled it'll scan through them to find rares nearby. Otherwise it requires you to mouseover/target a rare, or for your party member/pets to do likewise. When a rare appears, SilverDragon will pop up a frame that you can click on to target it. SilverDragon can also create a macro to target any rares that are known in the current zone.
WoWInterface, Curse

SmoothDurability Ammo

Smooth Durability is an addon that modifies the armored man and paperdoll frame.
Features: Gradient coloring with threshold of the armored man as opposed to blizzard's 3 step coloring, Tooltip over armored man with repair cost, Percentage on damaged items in Paper Doll screen with gradient coloring and threshold, Average durability percentage and cost in the Paper Doll screen, Movable armored man, Option to automatically repair at a merchant.
WoWInterface, Curse

SnowfallCursor Dayn

This is an addon that improves the visibility of the mouse cursor, making it easier to find in a chaotic environment with lots of spell effects and whatnot. The addon places a star at the cursor, with size proportional to the cursor speed.
WoWInterface

Spamalyzer Torhal, yoshimo

Spamalyzer monitors and collects data for traffic on the AddOn communication channels in order to help identify AddOns which are sending unnecessary or excessive traffic.
WoWInterface

tabDB DefectiveUser

Combines the Dungeon Finder, Raid Browser and Battleground panel into a single window with tabs on the right hand side to switch between them.
Curse, WoWInterface

Talented jerry

Talented provides a complete replacement of the Talent UI. It shows all three talent trees at the same time and allows you to create templates of talent builds.
Curse

tekability Tekkub

A simple durability frame based off Fizzle It simply adds a percent to the equipment icons in the char panel. Also provided is a LibDataBroker datafeed for the overall average durability, with item details in the tooltip.
WoWInterface, Curse

tekErr Tekkub

tekErr is a simple lua error manager. When an error is caught it will blink a small minimap icon to inform you. Clicking the icon opens a panel listing all errors. Clicking an error shows a full stack trace, handy to copy/paste into a bug report.
WoWInterface

TweakWoW Korkosh

Lets you modify some console variables easily via interface options. Editable options include:
KEYBINDINGS, GAME OPTIONS: (Violence Level, Screenshot Quality, Screenshot Format, Object Selection Circle, Always Compare Items, Ratio, Auto Dismount, Auto Stand, Auto Unshift, Pitch Limit), SYNCHRONIZE OPTIONS, CAMERA OPTIONS, GRAPHIC OPTIONS: (Farclip, GX Texture Cache Size, Groundeffect Density, Object Fade, Environment Detail, Character Ambient, SpellEffect Level), CPU OPTIONS, SOUND OPTIONS, COLOR OPTIONS: (Interface Color, Player Unitframe).
WoWInterface

Warmup Tekkub

Tracks how long between loadup events, shows how long each of your mods takes to load.
WoWInterface

WowLua Cladhaire

WowLua is an in-game Lua scripting environment that includes an interactive Lua interpreter as well as a multi-page script editor.
WoWInterface

WoWVid Dridzt, nikki

WoWVid lets the user create a viewport (in reality a specifically colored texture) that allows them to watch videos in overlay mode while in the game.
WoWInterface, Curse

 
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