What does the Sims 4 Tray Importer (S4TI) mod do in The Sims 4?

Sims 4 Tray Importer (S4TI) for The Sims 4

Sims 4 Tray Importer (S4TI) is a Sims 4 mod by Deevo, for LuniverSims (the brief said 'A.D.'; the creator's page credits Deevo). It is a free Windows program that lets you view, import and export the Sims, households and lots in your Library, with or without their custom content.

At a glance

Creator: Deevo, for LuniverSims (the brief said 'A.D.'; the creator's page credits Deevo)
Type: Program outside the game
Price: Free. Free download.
Get it: The creator's page, checked on October 28, 2026

What it does

Browse your Library (Tray folder) outside the game.
Import items into the Library and export them, with or without their CC.
Lists the custom content each item uses.
Shows which packs an item needs.
Gets the Gallery link for an item.
Pulls out an item's images; editing images is possible but the creator advises against it.
Conflict search under Tools.

What it needs

Windows 7 SP1, 8.x, 10 or 11
Microsoft .NET Framework (latest recommended)
A separate Mac version exists on LuniverSims.

How to install it

Download S4TI_unified_inst.zip from the LuniverSims page. This is a program, not a mod; do not put it in your Mods folder.
Open the zip and double-click S4TI_unified_inst.exe to install (it installs 32-bit and 64-bit versions).
If Windows warns about an unknown app, choose More info, then run.
Install the latest .NET Framework if the program will not start.
Open it and point it at your Sims 4 folder to see your Library.

Does it work with the latest patch?

Latest version is 1.25.8.2 (Nov 22, 2025, a fix for a missing file). It runs outside the game, so game patches do not break it the way they break mods. No statement about the Oct 27, 2026 patch was found. Note: the live LuniverSims page would not load from our server (TLS error); these facts come from an Aug 3, 2026 archived copy of the creator's page.

After every game update, check the creator's page before you play. If the game breaks, read your newest error file with the LastException reader, and see what the last patch changed.

More popular mods

Questions

Where do I put Tray Importer?

Nowhere in Mods. It is a Windows program you install and run on its own.

Can Tray Importer show what CC a Sim uses?

Yes. It lists the custom content used by each Sim, household or lot in your Library.

Is there a Mac version of Tray Importer?

Yes. LuniverSims hosts a separate Mac version.