Target Block Reader
by crimew
Target Block Reader shows the redstone signal strength of the block a player is looking at, as a number near the crosshair.
What it does
The mod places a readout near the crosshair that gives the redstone signal emitted by the block the player is aiming at. It is intended for checking how a block responds when it is struck, and a test command can summon a wind charge from the eye position to fire along the aim. Target Block Reader is client-side only, so a server does not need it and players can join without installing anything. It is released under CC0 1.0 Universal and is open source, with the source code and issue tracker public. Files are published for Fabric only, for Minecraft 1.21.4.
Key features
Signal readout
A number near the crosshair shows the redstone signal the targeted block is giving off.
Wind charge test
A command summons a wind charge at eye height, so the block's reaction to a punch can be observed along the aim.
Targeted block display
The readout follows whichever block sits under the crosshair, updating as the player looks at different blocks.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
CombatGlow is a Fabric mod for 1.21.1 – 1.21.11, client-side only, under All rights reserved and not open source. Block Target Info is a Fabric mod for 1.21.8 – 1.21.10, client-side only, under the MIT License and not open source. Both cover a different job from this readout.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Target Block Reader | Fabric | 1.21.4 | Client-side only | 2025-03-20 |
| CombatGlow | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-08-18 |
| Block Target Info | Fabric | 1.21.8 – 1.21.10 | Client-side only | 2026-06-03 |
Questions
Does Target Block Reader need to be installed on the server?
In the catalog
Target Block Reader is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 17,979 mods support Minecraft 1.21.4.
More from crimew
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What the author says
Target Block Reader adds a number near the crosshair that reads out the redstone signal that would be emitted by the target block you are looking at if it was struck there. You can test this with the command /summon minecraft:wind_charge ~ ~1.62 ~. This will summon a wind charge directly at your eye's position, so…
Official listing
- Modrinth page
- modrinth.com/mod/target-block-reader
- Owner
- crimew
- Published
- 2025-03-20
- Updated on Modrinth
- 2025-03-20
- Facts verified
- 2026-10-15