Tools
Command builders and reference tools for Minecraft 1.21.8. Every configuration encodes into the URL — bookmark or share to keep your build.
/give Command Builder
Pick an item, set count, enchantments, custom name, and lore. Outputs a copyable /give command.
/summon Command Builder
Spawn an entity with custom name, behavior flags (NoAI, Invulnerable, Silent) and health overrides.
Overworld ↔ Nether Coords
Convert coordinates between dimensions using the 8:1 ratio. Find ideal nether-portal placement.
Color & Formatting Codes
§0–§f legacy codes, formatting (bold, italic, underline), and 1.16+ hex colors with live preview.
/tellraw JSON Builder
Compose colored, formatted chat segments with click events (URL, command, copy-to-clipboard).
Banner Designer
Base color + up to 6 pattern layers, with a live SVG preview. Outputs /give banner with banner_patterns NBT.
Firework Designer
Flight duration + multi-explosion bursts (ball, star, creeper) with colors, fades, trails, and twinkle.
Crafting Tree
Pick an output item — get the recursive recipe tree and total raw materials needed. Unique to this site.
Slime Chunk Finder
Enter your world seed + coordinates. Bit-exact replica of Mojang's algorithm with a chunk-grid visualization.
Stronghold Finder
Compute all 128 stronghold coordinates from a world seed. Sorted by distance from your position.
Player Head Generator
Build a /give player_head with any username's skin. Includes Notch, Dinnerbone, and other famous heads.
Datapack Builder & Exporter
Build a custom datapack — recipes, loot tables, advancements, functions. Download a working .zip ready to install.