Server Diagnostics & Analytics Tools · Server Tool · by lucko
A performance profiler for Minecraft clients, servers and proxies, with shareable reports.
Paper · Spigot · Fabric · +3MC 26.3 · 26.2
Open source
Server Tool
Monitor player activity and server performance over time in a web interface, across servers and proxies.
Plan Player Analytics is a Minecraft server diagnostics tool for Paper, Spigot, Velocity, BungeeCord, Folia and Bukkit, listed under Server Diagnostics & Analytics Tools. It lists support for Minecraft 26.3 and 26.2. It is free.
From the source listing
Plan records player sessions, new-player counts, retention and performance trends and shows them in a web interface. It runs on Bukkit-family servers, Sponge, Fabric and on the BungeeCord, Waterfall and Velocity proxies. It is published under the LGPL; its wiki explains installation and which data it stores.
From the source listing
Same category
Most recently approved first. This is not a recommendation or a ranking.
Server Diagnostics & Analytics Tools · Server Tool · by lucko
A performance profiler for Minecraft clients, servers and proxies, with shareable reports.
Paper · Spigot · Fabric · +3MC 26.3 · 26.2
Open source
World Management & Pregeneration Tools · Server Tool · by dumptruckman and contributors
The Bukkit world management plugin: create, load and travel between multiple worlds on one server.
Paper · Spigot · Purpur · +1MC 26.3 · 26.2
Open source
World Management & Pregeneration Tools · Server Tool · by pop4959
Pregenerate chunks quickly and efficiently so players do not trigger expensive terrain generation while exploring.
Paper · Spigot · Folia · +5MC 26.3 · 26.2
Folia support · Open source
Guides
Measure first. How to read TPS, profile with spark and change the settings that actually cost the server time.