Glance shows information about the block or entity you are looking at.

BLOCKS
• Break time with the tool in your hand, and whether it will drop
• A bar that fills while you mine it
• Furnace, smoker, blast furnace, brewing stand and campfire progress
• Container contents and fill level
• Crop growth, redstone signals, spawner and hive contents, fluid levels
• Energy buffers and fluid tanks on modded machines

ENTITIES
• Health, armour and status effects
• Held items and armour
• Breeding cooldown, tame owner
• Villager profession and trades in stock

Modded blocks work without specific support - Glance reads block states, tool tags
and the standard NeoForge capabilities rather than a list of known blocks.

Works on vanilla servers. Install it server-side too for furnace timers, container
contents, energy and tanks, which vanilla never sends to the client.

CONTROLS
Left Alt (hold) - expand the card
Y - pin a target to the side of the screen, where it keeps updating

Settings: Options → "Glance...". Five themes, everything configurable.