Which Minecraft (Java & Bedrock) tools can I use online?

We list 14 tools for Minecraft (Java & Bedrock): Command & NBT Workshop, Potion Brewing Lab, Anvil Enchantment Optimizer, Nether Portal 8:1 Sync, Shulker Box & Stack Math, XP Level Calculator, Pixel Circle Blueprint, Player 3D Skin Workshop, Redstone Timing & Signal, Mob Spawning & Farm Siting, Villager Trade Economy, Farm Output & Pregeneration, Storage & Logistics, Version Notes. All of them run straight in your browser.

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.

Voxel Classic

Command & NBT Workshop · Minecraft (Java & Bedrock)

Java & Bedrock Edition Support · Voxel Sandbox / Redstone Survival

Player tools indexed: 14 Admin consoles: 11

1.20.5–1.20.6 data components & entity summon syntax

Player tools (14)

Instant interactive calculations and recipe planners

Command & NBT Workshop

Essential

1.20.5–1.20.6 data components & entity summon syntax

#Components#NBT Gen

Open tool →

Potion Brewing Lab

Interactive brewing stand for 30+ vanilla potions

#Recipes#Splash/Lingering

Open tool →

Anvil Enchantment Optimizer

Save XP

Avoid "Too Expensive" with lowest XP cost binary tree

#Enchanting#God Gear

Open tool →

Nether Portal 8:1 Sync

Bidirectional coordinate translation and MCA region file finder

#Nether Portal#Coordinates

Open tool →

Shulker Box & Stack Math

Convert between items, stacks (64/16), chests and shulkers

#Shulker#Stacks

Open tool →

XP Level Calculator

Convert levels to total XP and mob kill requirements

#XP Pool#Mob Farm

Open tool →

Pixel Circle Blueprint

Generate exact pixel circle blueprints from radius 1 to 128

#Blueprints#Pixel Art

Open tool →

Player 3D Skin Workshop

Interactive 3D skin renderer and official texture download

#Skin 3D#Capes

Open tool →

Redstone Timing & Signal

Technical

Game ticks, redstone ticks and seconds converted both ways, component delays, signal strengths and version timing traps

#Redstone#Technical

Open tool →

Mob Spawning & Farm Siting

Technical

The 24/32/128 zone test, hostile mob caps, spawner output and why farms underperform

#Mob Farm#Technical

Open tool →

Villager Trade Economy

Book pricing, how Hero of the Village and curing multiply, all 13 professions and restock troubleshooting

#Trading#Economy

Open tool →

Farm Output & Pregeneration

Work back from target output to spawn cadence, hopper count and storage, plus pregeneration time

#Throughput#Pregeneration

Open tool →

Storage & Logistics

Container math, hopper throughput, the real 1458 shulker ceiling and the cost of unstackable items

#Storage#Logistics

Open tool →

Version Notes

Version

Version timeline, pack formats and protocol numbers, plus the year-based numbering switch

#Version#Changelog

Open tool →

Server admin and config generation (11)

Config files, startup scripts and command wizards for running a server

MOTD Visual Designer

Style

WYSIWYG server list preview, RGB gradients and Unicode escape generator

#MOTD#RGB Gradient

Generate config →

server.properties Tuner

Core

Visual tuner for all server properties, 1.20/1.21 features and presets

#Config#Tuning

Generate config →

Paper 20.0 TPS Optimizer

Anti-Lag

Tuning 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-Lag

G1GC & ZGC tuning for Paper & Purpur servers to eliminate GC lag spikes

#G1GC / ZGC#Performance

Generate config →

Crash Log & Error Diagnostics

Diagnostic

Instant offline stacktrace parser for OOM, port conflicts, ticking entities and mixin errors

#Crash Analyzer#Offline Engine

Generate config →

GameRule Switchboard

Visual switchboard with snake_case rule names (keep_inventory, mob_griefing) and 1.21.11+ renames applied

#GameRules#KeepInventory

Generate config →

Server Software Matrix

Curated guide for Paper, Purpur, Fabric, NeoForge, Velocity, and Geyser

#Core Selection#Ecosystem

Generate config →

Whitelist & Ops Manager

Auto official UUID resolution for whitelist.json and ops.json

#Whitelist#OPS

Generate config →

Version Migration

Upgrade

Blocking and conditional upgrade items, with a paste-in scanner for legacy gamerule names

#Upgrade#Checklist

Generate config →

Gamerule Reference

Mapping

40+ legacy-to-current mappings distinguishing semantic from format renames, with search and export

#Mapping#Upgrade

Generate config →

Performance Diagnostics

Troubleshoot

MSPT/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.

https://minecraft.wiki/w/Server.properties

Minecraft (Java & Bedrock) Config file paths

server.properties
eula.txt
world/
ops.json
whitelist.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) tools can I use online?: We list 14 tools for Minecraft (Java & Bedrock): Command & NBT Workshop, Potion Brewing Lab, Anvil Enchantment Optimizer, Nether Portal 8:1 Sync, Shulker Box & Stack Math, XP Level Calculator, Pixel Circle Blueprint, Player 3D Skin Workshop, Redstone Timing & Signal, Mob Spawning & Farm Siting, Villager Trade Economy, Farm Output & Pregeneration, Storage & Logistics, Version Notes. All of them run straight in your browser.
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.