SquizzTalents

Unlimited saved talent builds, one-click swaps, and a reminder to switch builds when you enter a dungeon, raid, delve or PvP.

A talent loadout manager that remembers which build you use where, and reminds you when you forget to switch.

One list of your Blizzard loadouts and your own saved builds. Your own builds are stored as talent codes, so there's no limit on how many you keep.
Click a build to apply it. The game confirms the result, and anything that couldn't be applied is reported. Applying is safely refused in combat, during a Mythic+ key, or whenever the game won't allow talent changes.
Save your current build, and right-click any build to apply, rename, tag, pick an icon, export or delete it.
Import and export Blizzard's own talent codes, the same ones build sites use.
A searchable icon picker: talents, spells, your specs, this season's dungeons, or the full icon list.
Builds from an older talent tree are marked Outdated, with one click to refresh or remove them.
Opens right beside Blizzard's talent window, or on its own with /sqt.

On entering a dungeon, raid, delve, battleground or arena, on slotting a keystone, and on a ready check, you get a reminder if your active build isn't the one you chose for that content.
Choose builds for one difficulty of an instance, a whole instance, or every dungeon, raid, delve, battleground or arena. The most specific choice wins.
Never interrupts an active key, and waits for combat to end.

No libraries, no combat data: everything works on your own talent data, out of combat. Support

If you encounter any bugs or have feature requests, feel free to use the issue tracker on CurseForge.

If you enjoy using SquizzTalents, consider supporting development ❤️

Also check out my other addons:

SquizzFrames: party, raid, pet and unit frames with a full indicator system, click-casting and a tank tracker
Squizzumables: one-click reminders for food, flasks, oils and class buffs, plus raid tools and a restyled Cooldown Manager
Squizzcap: what killed you, how hard it hit and how fast you went down, with every death of a key saved to look back on
DPS Report: a lightweight damage meter with spell breakdowns and an end-of-key MVP summary
Avatar Continued: your character model on screen as part of your UI
KSLBestDungeon: ranks Mythic+ dungeons by how many of your KeystoneLoot favorites drop there