Selective Offline Mode
by Jmeow
Selective Offline Mode lets a Fabric server admit some players in offline mode while others stay in online mode, all on the same server.
What it does
Selective Offline Mode is a server-side Fabric mod, so only the server needs it and players join without installing anything. Fabric API is a required dependency and must be installed on the server next to it. The author describes the goal as keeping online-mode security for most players while easing offline-mode access for chosen accounts at the same time.
Files are published for Fabric only, in 13 release versions, with the latest build 1.0.0 for 1.21.5 dated 2025-06-01. The author states that the code was tested on 1.20.1, and that 1.20.4 and 1.21.4 are the other versions named in the notes, with little change expected across newer builds. The source code is public and the project is released under the MIT License, so it is open source.
The author notes say a dependency override in the Fabric loader file was considered and warned as probably unworkable, and that support for further features was still undecided at the time of writing. Those points are not documented as shipped behavior, so no separate feature set is listed here.
Key features
Mixed login modes
The server can allow online-mode and offline-mode accounts at the same time, with the choice applied per player.
Server-side install
Only the server runs the mod, so players connect without any client-side addition.
Public source code
The source is available to read, so server owners can check how the login decision is made.
Compatibility
Latest build for each game version and loader.
1.21.x6 of 6 versions with builds
1.20.x7 of 7 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Mixed-account servers
A server with both licensed and unlicensed players can keep online checks for most accounts and relax them for specific ones.
Who it’s for: Server owners running Fabric who need some players to join without a Mojang account while keeping online-mode security for the rest.
How it compares
Partial Online Mode also runs server-side only under the MIT License, but its listed build is for 26.2 alone, so it does not cover the older releases that Selective Offline Mode targets. Offline Players is open source under the GNU Lesser General Public License v3.0 or later and is required on the server side with the client optional, with files covering a shorter span of releases. Connecto is server-side only and open source under the MIT License, with files for a later span of releases.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Selective Offline Mode | Fabric | 1.20 – 1.21.5 | Server-side only | 2025-06-01 |
| Partial Online Mode | Fabric | 26.2 | Server-side only | 2026-07-24 |
| Offline Players | Fabric | 1.20.1 – 1.21.1 | Server required, client optional | 2025-07-16 |
| Connecto | Fabric | 1.20.2 – 26.2 | Server-side only | 2026-08-12 |
Questions
Does Selective Offline Mode need Fabric API?
Do players need to install anything?
Which game versions have files?
In the catalog
Selective Offline Mode is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 15,307 mods support Minecraft 1.21.5.
More from Jmeow
Similar mods
What the author says
Allow unauthenticated players, such as custom bots, to join the game without authenticating through Microsoft. Use the /allowplayer command to allow a player with that username to join in the next 60 seconds, even if they aren't logged in to a valid Microsoft account. This allows players you want on your server to…
Official listing
- Modrinth page
- modrinth.com/mod/selective-offline-mode
- Owner
- Jmeow
- Published
- 2025-06-01
- Updated on Modrinth
- 2025-06-01
- Facts verified
- 2026-10-15