Modrex

Free plan LinuxWindows

What Modrex is

Modrex is a free, open-source desktop mod manager for Linux and Windows. It lets users browse ModWorkshop and Nexus Mods in one place, then install, enable, disable, remove, and organize supported mod archives. Collections can be arranged in nested folders with drag-and-drop reordering. Modrex detects outdated mods and can update one item or all items together. Supported games are PAYDAY 3, PAYDAY 2, PAYDAY: The Heist, Crime Boss: Rockay City, and RAID: World War II. Games can launch modded or vanilla; a vanilla launch hides mods and restores them after the game exits. Launcher support varies by title, with Steam, Epic Games, and the Xbox app listed where applicable. Automatic updates are enabled. The app collects no data by default, while optional analytics remain off unless users opt in. Nexus authentication uses browser OAuth, though Linux without Secret Service stores tokens in plain text.

Who it suits

Modrex suits Linux and Windows players managing mods for its supported games. It is useful for people who want combined ModWorkshop and Nexus Mods browsing with organized collections.

What it does well

Free and open source
Supports Linux and Windows
Combines ModWorkshop and Nexus Mods
Updates one or all outdated mods
Offers modded and vanilla launches

What to know first

Supports only five listed games
Linux tokens may be stored in plain text
Launcher compatibility varies by game

Plans

Plan	Billed and limits	Price
Free	Free and open source	Free

As modrex.net lists them, read 11 Oct 2026. The maker's own page has the final word.

Verdict

Modrex focuses on organizing and updating mods while keeping modded and vanilla launches separate. Its privacy defaults are clear, but Linux credential storage has an important limitation.

Facts from Modrex's own pages

Automatic updates: Yes · github.com, 20 Sept 2026
Deployment method: copy · github.com, 20 Sept 2026
Free plan: Yes · github.com, 20 Sept 2026
Installation and organization: Users can install, enable, disable, and remove mods from supported archives, then organize them in nested folders with drag-and-drop reordering. · modrex.net, 11 Oct 2026
Launcher support: Launcher support varies by game; the supported games page lists Steam, Epic Games, and the Xbox app where applicable. · modrex.net, 11 Oct 2026
Launch modes: Users can launch games modded or vanilla; vanilla launches hide mods and restore them when the game exits. · modrex.net, 11 Oct 2026
Linux credential limit: On Linux without a running Secret Service provider, Nexus access and refresh tokens are stored in plain text in the configuration file, and Modrex displays a warning. · modrex.net, 11 Oct 2026
Mod responsibility: Modrex says it does not host, distribute, or endorse mods; users are responsible for ensuring installed mods comply with relevant terms and licenses. · modrex.net, 11 Oct 2026
Mod source access: built-in · github.com, 20 Sept 2026
Mod sources: It lets users browse ModWorkshop and Nexus Mods in one place. · modrex.net, 11 Oct 2026
Nexus sign-in: Nexus Mods sign-in uses the user's browser and OAuth, and Modrex does not see or handle the Nexus password. · modrex.net, 11 Oct 2026
Privacy: The desktop app collects no data by default; optional analytics are off unless the user opts in. · modrex.net, 11 Oct 2026
Product: Modrex is a desktop mod manager for browsing, installing, and organizing game mods. · modrex.net, 11 Oct 2026
Support: The documentation directs users to Discord for support, discussions, and updates, and to a contribution guide to report problems or suggest features. · modrex.net, 11 Oct 2026
Supported games: It supports PAYDAY 3, PAYDAY 2, PAYDAY: The Heist, Crime Boss: Rockay City, and RAID: World War II. · modrex.net, 11 Oct 2026
Supported platforms: multi-platform · github.com, 20 Sept 2026
Updates: Modrex detects outdated mods and lets users update individual mods or all of them at once. · modrex.net, 11 Oct 2026

Where Modrex stands on Freedom251

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