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LoginSecurityMinecraft plugin for 1.21

Simple, light, fast and secure user authentication management. Since 2012.

server onlynewest supported 1.21
Latest version
3.3.1
Minecraft
1.8 to 1.21
Loader
Spigot
Licence
not stated
Downloads
3.1M
Updated
10 mo ago
Available on
SpigotMC
Space NodePartner

Host LoginSecurity servers

One click and LoginSecurity is installed with the right loader, on hardware built for it.

  • 1.21
  • Spigot
  • One click plugin install
  • Paper and Purpur ready
  • Automatic updates
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version LoginSecurity declares support for, newest first, with the Java runtime that version needs.

Other plugins
MinecraftThroughJavaEvidenceReleased
1.21Spigot21+declared13 Jun 2024
1.20Spigot17+declared2 Jun 2023
1.19Spigot17+declared7 Jun 2022
1.18Spigot17+declared30 Nov 2021
1.17Spigot16+declared8 Jun 2021
1.16Spigot8+declared23 Jun 2020
1.15Spigot8+declared9 Dec 2019
1.14Spigot8+declared23 Apr 2019
1.13Spigot8+declared18 Jul 2018
1.12Spigot8+declared2 Jun 2017
1.11Spigot8+declared14 Nov 2016
1.10Spigot8+declared8 Jun 2016
1.9Spigot8+declared29 Feb 2016
1.8Spigot8+declared2 Sept 2014

Download

From LoginSecurity’s own host. Nothing is re-hosted here.

3.3.1release13 Nov 2025

loginsecurity.jar · 0.3 MB

Download latest
Older versions22
  • 3.3.027 Dec 20231.1M downloads
  • 3.2.128 Aug 2023186.9k downloads
  • 3.2.018 Aug 202322.6k downloads
  • 3.1.117 Jan 2023338.2k downloads
  • 3.114 Aug 2021831.3k downloads
  • 3.0.227 Apr 2020264.3k downloads
  • 3.0.126 May 201926.6k downloads
  • 3.0.018 May 20193.7k downloads
  • 2.1.94 May 20192.5k downloads
  • 2.1.829 Apr 20191.7k downloads
  • 2.1.7c26 Nov 20179.2k downloads
  • 2.1.7b26 Nov 2017889 downloads
  • 2.1.78 Jun 20177.4k downloads
  • v2.1.6b7 Dec 20168.0k downloads
  • 2.1.630 Nov 20161.4k downloads
  • 2.1.528 Aug 20163.7k downloads
  • 2.1.418 Jul 20161.9k downloads
  • 2.1.31 Jul 2016986 downloads
  • 2.1.227 Jun 2016938 downloads
  • 2.1.121 Jun 20161.1k downloads
  • 2.1 BETA16 Jun 20161.1k downloads
  • 2.0.1423 Mar 20161.9k downloads

Frequently asked

Does LoginSecurity work on Minecraft 1.21?

Yes. 1.21 is the newest Minecraft version LoginSecurity declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does LoginSecurity support?

Everything the author has declared, from 1.8 up to 1.21. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install LoginSecurity on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which server software does LoginSecurity need?

Spigot. A build for one server platform will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for LoginSecurity?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the plugin itself.

How do I install LoginSecurity?

Download the file from the author's own release, drop it into your server's plugins folder, and restart the server. It generates its configuration on first start. Check the Minecraft version matches the one your server runs.

Where do I download LoginSecurity safely?

From the author's own page on SpigotMC, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Last checked 2 mo ago against SpigotMC. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .