RedCheck

RedCheck is a client-side Fabric mod that displays useful redstone information directly in your HUD when you look at redstone-related blocks.

It is designed for players who build, debug, test, or learn redstone contraptions and want fast visual feedback without opening F3, guessing comparator output, or manually checking every block.

Client-side only

RedCheck works entirely on the client.

• No server installation required
• Uses only data already visible to the Minecraft client
• Can cache container contents after you open them once

Features

When looking at supported blocks, RedCheck can show information such as:

• Redstone power
• Repeater delay
• Repeater chain length and total delay
• Comparator mode
• Container fill level
• Estimated comparator output from containers
• Powered / lit / open state
• Note block note and instrument
• Sculk sensor phase and calibrated filter
• Lectern book presence
• Daylight detector mode and signal
• Composter level
• Cauldron fill level
• Target block signal
• Weighted pressure plate output
• Approximate TNT cluster estimate

Configurable HUD

The HUD is highly configurable:

• Enable / disable the HUD by default
• Auto-enable HUD while holding or wearing specific items
• Toggle 3D item preview
• Show container panel while holding Shift
• Enable local container cache
• Configure repeater scan length
• Enable or disable specific HUD lines individually

You can customize which types of information are shown, so the HUD stays clean and useful.

Container cache

Because this mod is client-side only, some container information is only available after the client has seen it.

RedCheck can cache container contents locally after you open a container once, allowing the HUD to show approximate comparator output and fill level later in the world.