Visual Data Size

Key Features

• Exact Data Measurement: Measures the precise serialized data size of any item or full stack in Bytes (B), Kibibytes (KiB), or Mebibytes (MiB).
• Structural Tag Counter: Recursively counts tags and nested data stored inside an item, including complex items such as filled Shulker Boxes, books, and modded items with custom data.
• Live In-Game Commands: Toggle the display and change the format directly in chat using simple client-side commands with Tab completion.
• 100% Client-Side: Runs entirely on your client. No server-side installation or admin permissions are required, so it works on multiplayer servers and in singleplayer.
• Vanilla-Style Tooltip: Displays the additional information using the same simple dark-gray style as Minecraft's advanced tooltip data.
• No Cache: The current ItemStack is measured again when needed, so changes to item data are reflected immediately.
• Custom Item Support: Persistent data from modded items and custom data components is included in the measurement.
• Container Support: Nested item data, such as the contents of Shulker Boxes, is included in the serialized size.

Chat Commands

Use /visualdatasize to configure the mod. All commands support Tab completion.

• /visualdatasize toggle — Turns the tooltip display ON or OFF.
• /visualdatasize format smart — Automatically chooses a readable size unit.
• /visualdatasize format bytes — Shows the exact size in Bytes.
• /visualdatasize format kib — Shows the size in KiB.
• /visualdatasize format mib — Shows the size in MiB.
• /visualdatasize format bits — Shows the size in Bits.