Command & NBT Workshop
Essential1.20.5–1.20.6 data components & entity summon syntax
#Components#NBT Gen
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Voxel Classic
Aikar JVM Flags Generator · Minecraft (Java & Bedrock)
Java & Bedrock Edition Support · Voxel Sandbox / Redstone Survival
Player tools indexed: 14
Admin consoles: 11
G1GC & ZGC tuning for Paper & Purpur servers to eliminate GC lag spikes
Player tools (14)
Instant interactive calculations and recipe plannersInteractive brewing stand for 30+ vanilla potions
#Recipes#Splash/Lingering
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Anvil Enchantment Optimizer
Save XPAvoid "Too Expensive" with lowest XP cost binary tree
#Enchanting#God Gear
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Bidirectional coordinate translation and MCA region file finder
#Nether Portal#Coordinates
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Convert between items, stacks (64/16), chests and shulkers
#Shulker#Stacks
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Convert levels to total XP and mob kill requirements
#XP Pool#Mob Farm
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Generate exact pixel circle blueprints from radius 1 to 128
#Blueprints#Pixel Art
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Interactive 3D skin renderer and official texture download
#Skin 3D#Capes
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Redstone Timing & Signal
TechnicalGame ticks, redstone ticks and seconds converted both ways, component delays, signal strengths and version timing traps
#Redstone#Technical
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Mob Spawning & Farm Siting
TechnicalThe 24/32/128 zone test, hostile mob caps, spawner output and why farms underperform
#Mob Farm#Technical
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Book pricing, how Hero of the Village and curing multiply, all 13 professions and restock troubleshooting
#Trading#Economy
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Work back from target output to spawn cadence, hopper count and storage, plus pregeneration time
#Throughput#Pregeneration
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Container math, hopper throughput, the real 1458 shulker ceiling and the cost of unstackable items
#Storage#Logistics
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Version Notes
VersionVersion timeline, pack formats and protocol numbers, plus the year-based numbering switch
#Version#Changelog
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Server admin and config generation (11)
Config files, startup scripts and command wizards for running a serverMOTD Visual Designer
StyleWYSIWYG server list preview, RGB gradients and Unicode escape generator
#MOTD#RGB Gradient
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Visual tuner for all server properties, 1.20/1.21 features and presets
#Config#Tuning
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Paper 20.0 TPS Optimizer
Anti-LagTuning paper-world-defaults.yml, spigot.yml, hopper checks and entity limits for steady 20.0 TPS
#Paper Tuning#20.0 TPS
Generate config →
Aikar JVM Flags Generator
Anti-LagG1GC & ZGC tuning for Paper & Purpur servers to eliminate GC lag spikes
#G1GC / ZGC#Performance
Generate config →
Crash Log & Error Diagnostics
DiagnosticInstant offline stacktrace parser for OOM, port conflicts, ticking entities and mixin errors
#Crash Analyzer#Offline Engine
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Visual switchboard with snake_case rule names (keep_inventory, mob_griefing) and 1.21.11+ renames applied
#GameRules#KeepInventory
Generate config →
Curated guide for Paper, Purpur, Fabric, NeoForge, Velocity, and Geyser
#Core Selection#Ecosystem
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Auto official UUID resolution for whitelist.json and ops.json
#Whitelist#OPS
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Version Migration
UpgradeBlocking and conditional upgrade items, with a paste-in scanner for legacy gamerule names
#Upgrade#Checklist
Generate config →
Gamerule Reference
Mapping40+ legacy-to-current mappings distinguishing semantic from format renames, with search and export
#Mapping#Upgrade
Generate config →
Performance Diagnostics
TroubleshootMSPT/TPS conversion, health grading and a symptom-driven path to the bottleneck
#Troubleshooting#Performance
Generate config →
Minecraft (Java & Bedrock) Ports & Protocols
| Port | Protocol | Purpose |
|---|---|---|
| 25565 | TCP | Game port |
| 25575 | TCP | RCON (optional; keep it internal) |
Minecraft (Java & Bedrock) Dedicated Server Install (SteamCMD)
This game does not ship its server via SteamCMD — download it from the official source.
Minecraft (Java & Bedrock) Config file paths
server.propertieseula.txtworld/ops.jsonwhitelist.json
Server notes
Minecraft Java Edition does not use SteamCMD: the server is Mojang’s own server.jar, downloaded from minecraft.net and launched with java -Xmx… -jar server.jar nogui, which is why this page ships no SteamCMD command. The very first start exits immediately — you must write eula=true into eula.txt before it will run. Keep online-mode=true on any public server; turning it off lets cracked clients impersonate any account. Do not expose the RCON port 25575 to the internet — bind it locally and tunnel in. Every extra point of view-distance and simulation-distance costs real CPU; the default 10 is plenty, so lower it if ticks are slipping.
FAQ
- Which Minecraft (Java & Bedrock) server-admin tools are available?
- We list 11 tools for Minecraft (Java & Bedrock): MOTD Visual Designer, server.properties Tuner, Paper 20.0 TPS Optimizer, Aikar JVM Flags Generator, Crash Log & Error Diagnostics, GameRule Switchboard, Server Software Matrix, Whitelist & Ops Manager, Version Migration, Gamerule Reference, Performance Diagnostics. All of them run straight in your browser.
- Which ports does Minecraft (Java & Bedrock) need open?
- Minecraft (Java & Bedrock) defaults to 25565/TCP, 25575/TCP. Use the actual instance configuration and allow only the listed protocols and ports. Check the host firewall, router forwarding and game visibility settings.
- Where are the Minecraft (Java & Bedrock) config files?
- Common paths for Minecraft (Java & Bedrock) config files are server.properties, eula.txt, world/. Stop the server before editing, otherwise it overwrites your changes on exit.
- Do these tools cost anything or need installing?
- No. Everything runs in the page: no install, no sign-up, no cost. Enter your values and the result appears instantly, and you can copy the generated configs and commands with one click.