Blockname
Blockname, a Fabric client mod for 1.20.1 – 1.21.11, shows details about the block a player is looking at through a pop-up and a real-time scan view.
What it does
Blockname displays the name of the block under the crosshair in a basic pop-up. A separate Scan Mode gives live information about the same block as the player looks at it. A Debug Mode adds block IDs, tags and loot table properties to the display for players and modpack makers who need to check those values.
The interface uses a Glass UI with dark and light themes, a compact or full layout, and animated transitions. Settings are reachable from a ModMenu screen inside the game. Lookups are cached with an LRU Cache, which the author describes as having no measurable CPU overhead. The mod is open source under the MIT License and runs on the client only, so servers do not need it.
Builds cover Minecraft 1.20.1 – 1.21.11 and are published for Fabric alone, with 18 release versions. The latest file is 1.0.0 for 1.21.11, marked as a beta release. Blockname has no required dependencies, and the author's notes say the mod is placed in the mods folder like any other.
Key features
Block name pop-up
A basic pop-up shows the name of the block the player is looking at.
Scan Mode
Real-time block information updates as the player moves the crosshair across blocks.
Glass UI theming
Dark and light themes, with a compact or full layout and animated transitions.
Debug Mode
Shows block IDs, tags and loot table properties for checking block data.
In-game settings
A ModMenu screen lets players change the display options without editing files.
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
1.20.x6 of 6 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Checking block data
Debug Mode shows the ID, tags and loot table of a block, which helps when writing datapacks or resource packs.
Identifying unfamiliar blocks
Players in modded worlds can read block names and details without leaving the game view.
Who it’s for: Players who want on-screen block details, and modpack makers or datapack authors who need block IDs, tags and loot tables. Servers do not need the mod, since it is client-side only.
How it compares
Just Another Survival Debug Stick is a Fabric server-side mod for 1.21.4 – 1.21.10, released under CC0 1.0 Universal and open source, so it adds server tooling rather than on-screen block details. Custom Totem Pop Animation is a Fabric client-side mod for 1.19.4 – 1.20.4 released under the MIT License, and it is not open source. Totem Tweaks is a client-side Fabric mod for 1.18.2 – 26.2 under All rights reserved, and it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Blockname | Fabric | 1.20.1 – 1.21.11 | Client-side only | 2026-04-24 |
| Just Another Survival Debug Stick | Fabric | 1.21.4 – 1.21.10 | Server-side only | 2025-10-20 |
| Custom Totem Pop Animation | Fabric | 1.19.4 – 1.20.4 | Client-side only | 2024-02-19 |
| Totem Tweaks | Fabric | 1.18.2 – 26.2 | Client-side only | 2026-07-19 |
Questions
Does Blockname need to be installed on the server?
Which loader does Blockname use?
Can Blockname show block IDs and loot tables?
In the catalog
Blockname is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from LeFilou2.0 STUDIO
Similar mods
What the author says
File: config/blockname.json (auto-generated on first launch) Fichier: config/blockname.json (créé automatiquement)
Official listing
- Modrinth page
- modrinth.com/mod/blockname
- Owner
- LeFilou2.0 STUDIO
- Published
- 2026-04-22
- Updated on Modrinth
- 2026-04-24
- Facts verified
- 2026-10-15