Entity Library – Mob Preview Browser

Entity Library adds a simple in-game “library” screen that lets you browse and preview entities in 3D without actually summoning them into the world.

Built for modpacks where you want a quick way to check what mobs exist (including modded mobs) and what they look like, without spawning, ticking, or affecting gameplay.

Features

• Browse a searchable list of LivingEntity types registered by Minecraft and your mods
• 3D preview panel (no entity is spawned into the world)
• Shows the entity registry ID and a /summon <id> ~ ~ ~ hint for reference
• Mouse wheel zoom (preview scale)
• Drag to rotate the preview
• Optional walk/idle animation toggle
• Favorites: star entities and filter to show only favorites (saved across sessions)
• Filters: All, Living, Hostile, Passive, Favorites
• Namespace/mod filter to show entities from a specific mod/namespace
• Detail panel with: display name, registry ID, max health, dimensions, mob category, and /summon command with copy button
• Dark/Light theme toggle (saved to config)
• Optional NBT editor for common tags (NoAI, Glowing, Invulnerable, Silent, NoGravity, PersistenceRequired, CustomNameVisible) plus Custom Name, with live /summon preview + copy
• Loot table / drops display (singleplayer only)

Controls

• Open the library: O (configurable in Minecraft Controls)

Compatibility

• Minecraft: 1.18.2
• Forge: 40.3.11+
• Client-side mod. Intended to be safe to use on servers (it does not summon anything), but servers may still require clients to follow their mod rules.

Notes / Limitations

• The list intentionally hides non-living entity types (projectiles, boats, minecarts, etc.).
• Some modded entities may fail to preview if they require server-only initialization or special spawn data; these will show a preview error instead of crashing the game.
• Loot table / drops display works in singleplayer only.

Modpack Permissions

• You may include this mod in modpacks.