A plugin that designed to detect players who joined to your server with an Alt!
AltFinder is a plugin for Paper / Spigot servers, made by AxolotlThirtyFive. It supports Minecraft 1.20 – 26.x. It has been downloaded 28 times on Modrinth. That puts it at #166 of the 241 admin and permission plugins listed here. The last update came out on Oct 6, 2026.
How to install AltFinder
Make sure your server runs Paper and Spigot on Minecraft 1.20 – 26.x.
Download the .jar file from Modrinth and put it in the plugins folder of your server.
Restart the server. Avoid /reload, many plugins do not handle it well.
Type /plugins in the console: AltFinder should be listed in green. Its config files are created in the plugins folder on the first start.
Compatibility
- Minecraft versions
- 26.x, 1.21, 1.20
- Runs on
- Paper, Spigot
- Edition
- Java
- Needs
- Nothing else
- License
- Free to use
- Price
- Free
- Upkeep
- Actively updated (Oct 30, 2026)
AltFinder compared with similar ones Compare all alternatives
| Resource | Downloads | Rating | Versions | Last update | Price |
|---|---|---|---|---|---|
 AltFinderthe one you looked at | 28 | – | 1.20 – 26.x | 25 days ago | Free |
 AntiRedstoneClock-RemasteredOneLiteFeather | 2,760 | – | 1.16 – 26.x | 21 days ago | Free |
 HeartWardenmoonlord7722 | 86 | – | 1.21 – 26.x | 6 days ago | Free |
 ClientCatcher4drian3d | 1,446 | – | – | Sep 7, 2025 | Free |
Questions
Does AltFinder work on Minecraft 26.x?
Yes. AltFinder supports Minecraft 26.x. All supported versions: 26.x, 1.21, 1.20.
Is AltFinder free?
Yes. AltFinder is free to download from Modrinth.
Which server software does AltFinder run on?
AltFinder runs on Paper and Spigot servers.
Is AltFinder still updated?
Yes. The last update came out in the past day.
What are the best alternatives to AltFinder?
The closest ones are AntiRedstoneClock-Remastered, HeartWarden and ClientCatcher. Compare all alternatives
Reviews
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