A free desktop app that turns your mods folder into a proper library. For The Sims 1, 2, 3, 4 & Medieval, on Windows, macOS and Linux.
Also for other platforms
Switch games and the whole interface re-themes: colors, logos, even the classic Sims 1 UI sounds. Try it right here: this page re-themes with it.
The Sims 4 library in the app's default mint. The whole page just re-themed with it.
Stop renaming files by hand and guessing which download broke your game.
The app looks inside your .package files and pulls out the actual artwork, plus a breakdown of what's inside: CAS parts, objects, textures, tuning.
Flip a toggle to turn any mod off without deleting it. The file is safely renamed so the game just skips it; flip it back any time.
Installed the same mod twice, or kept an old version next to the new one? Both get badged. The app also looks inside your packages and flags the ones that override each other's resources, the real reason CC breaks.
Drop files or whole folders onto the window and they land in the right place. .zip, .rar and .7z downloads are unpacked for you, folder structure kept, readmes and screenshots left out.
Localized folder names ("Los Sims 3"), the Ultimate Collection, OneDrive-moved Documents, multiple installs: it finds them, or you can point it anywhere.
No mods folder yet? One click creates it with the files the game needs, like the Resource.cfg framework The Sims 3 requires before mods work at all.
Search your whole library, filter by category, switch between grid and list, and watch live totals for enabled, disabled and conflicting mods.
Free, with no account and no installer tricks. Pick your platform:
Latest release
Recommended for most people. Windows SmartScreen may warn because the app isn't code-signed yet; choose More info → Run anyway.
Download .exeNo install needed. Extract the zip anywhere and run sims_mod_manager.exe.
Download .zip
Signed & notarized by Apple. Unzip and drag to Applications, then open like any other app.
Download .zip
Extract the archive and run sims_mod_manager. Works with Wine/CrossOver game installs too.
Download .tar.gzEvery version is built automatically for all three platforms, and the app lets you know when an update is out.
Each game keeps its mods somewhere different. The app knows where.
Mods live in the install folder's Downloads directory, not in Documents. The app knows the difference.
Handles the standard EA Games Documents folder and the Ultimate Collection's own folder name.
Needs the Resource.cfg mod framework before any mod loads; the app creates it for you.
Mods live in the install folder, not Documents, and need a Resource.cfg; the app sets both up for you.
Uses the standard Mods folder. Just remember to enable CC & script mods in the game's options.
Every location is just a smart default; you can point any game at any folder in Settings. SimCity support is on the roadmap, and the app was built so any moddable game can be added.
Yes. The app is free to download and use, and there's no account, no ads, and no "pro" version. If it saves your Saturday, you can buy the developer a coffee, but that's entirely optional.
Disabling a mod only renames the file (adding a .disabled suffix) so the game skips it; nothing is ever deleted, and re-enabling restores the exact original file. Your saves are never touched.
The app isn't code-signed yet (certificates are expensive for a free project), so SmartScreen shows a warning on first run. Choose More info → Run anyway. Every download is built and published automatically by GitHub's own servers, so nobody can slip anything into it along the way.
Yes. It detects localized user folders ("Los Sims 3", "Die Sims 2"…), the Sims 2 Ultimate Collection, Documents folders moved by OneDrive, and multiple installs of the same game. If all else fails, you can point it at any folder manually.
Right inside the app: open Settings → Report a bug (or Suggest a feature) and your app version, OS and current game come prefilled. You can also drop a message on Tumblr.