ModsJava
LoginCustom
Java mod listed for Minecraft 1.7–1.18. Download on the author's site.
⬇ Download on SpigotLoginCustom
Secure authentication for modern and legacy Minecraft servers
Download from GitHub • Modrinth • Documentation
What is LoginCustom?
LoginCustom protects offline-mode and mixed-mode Minecraft servers against username impersonation and account theft. Players must register or log in before they can move, chat, execute blocked commands, use inventories, interact, take damage, teleport, enter vehicles or change servers.
The plugin supports standalone servers and proxy networks, with dedicated builds for each platform instead of one oversized universal JAR.
Main features
• Secure Argon2id password hashing with random salts
• Verified Premium login through Minecraft's official session handshake
• Optional TOTP two-factor authentication with one-use recovery codes
• SQLite support for standalone servers
• MariaDB support for synchronized proxy networks
• Dedicated Paper, Purpur, Folia, Bukkit, Spigot, Velocity and BungeeCord builds
• Configurable login spawn with /setlogin
• Permission-aware tab completion and built-in command help
• English and Spanish messages
• Login reminders, attempt limits and configurable authentication timeouts
• Signed proxy sessions with timestamp, nonce and replay protection
• Fail-closed protection when storage or trusted network communication is unavailable
• Security diagnostics through /logincustom doctor
Available editions
• LoginCustom Legacy 1.0.0 — Minecraft 1.8.8 to 1.15.2
• LoginCustom Downgrade Beta — Minecraft 1.16.x to 1.20.x
• LoginCustom Beta 5 Dev 3 — Minecraft 1.21.x and 26.x
Use the JAR made for your server software and Minecraft generation. Do not install multiple LoginCustom backend JARs on the same server.
Network installation
For a proxy network, install the matching Velocity or BungeeCord JAR on the proxy and the appropriate LoginCustom backend JAR on every protected server. MariaDB is required so authentication state can be shared safely across the network.
The backend ports must not be publicly accessible. Players should always enter through the configured proxy.
Important commands
• /register <password> <password>
• /login <password>
• /changepassword <old> <new>
• /premium <password>
• /unpremium
• /unregister <password>
• /2fa setup, confirm, disable, status and recover
• /setlogin
• /logincustom help
• /logincustom status
• /logincustom doctor
• /logincustom reload
Downloads and documentation
All public downloads are hosted on GitHub Releases:
https://github.com/ImStaxDev/LoginCustom/releases
Project page and installation documentation:
https://github.com/ImStaxDev/LoginCustom
You can also follow releases on Modrinth:
https://modrinth.com/plugin/logincustom
Protect every account. Keep every login under control.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.7, 1.8, 1.9
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Spigot — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
LoginCustom is a free Minecraft Java mod. Compatible with Minecraft 1.7, 1.8, 1.9, 1.10 and newer. Downloaded 60 times (via Spigot). Download it and open it directly in the game.