Environments
Swap between multiple versions of your mods, saves, and tray folders with the click of a button. Somewhat similar to mod packs in other games.

Sims 4 Editor offers a ton of features for both regular players and mod makers.
Active Development It is under active development, and new features will be added over time.
Environments
Swap between multiple versions of your mods, saves, and tray folders with the click of a button. Somewhat similar to mod packs in other games.

String Search
Find where strings were defined. Works with mods. Answers the question: What mod or DLC is this thing from?
For mod makers, this also shows which tuning files strings were referenced in.
Tutorials
SimsEdit has modding tutorials for complete beginners, while still working towards advanced level topics.
Package Editor
View and edit .package files. Supports XML, string tables, Simdata, thumbnails, and most DDS Images. Can validate tuning XML using .tdesc files. Proof of concept model viewing.
Resource Browser
Browse every resource in the entire game. Allows importing resources to packages (including unsupported resource types).
Tuning Descriptions
Download & view tuning descriptions. Run validation on your existing tuning mods.
Combined Tuning
Extract & browse combined tuning files along side their descriptions.