Plugins and mods
Dalamud plugins add features to Final Fantasy XIV while it runs. You install them from the Plugin Installer, which the /xlplugins chat command opens once the game is started through XIVLauncher.
Each plugin is built for one Dalamud API level. When Dalamud moves to a new level, plugins built for the previous one show (outdated) in the installer and stay off until their authors update them.
Mods from Nexus Mods replace the game’s models, textures and sounds on your own client and are loaded with Penumbra or TexTools.

Customizable ImGui hotbars

Ingame chat translator.

Check where you can obtain materials.

Never forget to repair & extract materia again!

Mo' actions no problems

Shows what zone/region/territory you are in next to the server info.

Treasure map tracker and statistics.

south spot best spot

Receive a notification when a duty roulette is in need of a role.

A roleplay thesaurus and scratch pad.

Optimize Island Sanctuary Workshop orders.

Improve your Bozja suffering. Maybe.

Show nearby players in a stylish way, inspired by the "/who" command from World of Warcraft.

Lightweight job visibility in nameplates and chat.

Ever wanted detailed information on your playtime all the way down to the second?

Tracking data is fun

Browser overlays rendered in-game.

Adds a search bar directly in the inventory window to filter items.

Displays information about housing fixtures and objects.

Dialogue and other in-game text translations? Yes we have! Known Issues at: https://github.com/lokinmodar/Echoglossian/issues/12

Play a chime when someone comes into a house.

Target distance widgets.

Places flag marker on map from coordinates in chat.

Choose which mounts show up in the mount roulette.

Track who used what emotes on you.

Track, Discover and Interact with your Collections in game

Receive your chat messages via Discord.

Displays debuffs (and more) on nameplates.

Reduces the refresh rate of movement physics, "fixing" it at high fps.

Flash FFXIV's program on the taskbar when you receive a /tell

Find anything, go anywhere, in style.

Track things inside Deep Dungeons (Solo only).

Customizable ring-shaped hotbars

Chat and game dialogue TTS plugin.

See chat messages from your current target in a separate window.

PvP match history and stats tracker.

Removes unwanted icons from your map.

Quickly check the patch an item was released in!

Total customization of your inventory

Bard performance assistant