CurseForge · Minecraft mod
TheRuler
A lightweight holographic selection and measurement tool. Mark two positions, instantly see dimensions, distance, area and volume.
Quick answer
Which TheRuler release should I use?
TheRuler RulerModV1 26.3 targets 26.3 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is TheRuler required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does TheRuler RulerModV1 26.3 need?
RulerModV1 26.3. Change the file and its required mods may change too.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add TheRuler without breaking your instance.
Built for TheRuler RulerModV1 26.3. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use RulerModV1 26.3. It targets 26.3 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside RulerModV1 26.3. It opens that exact file at the source.
About this project
What does TheRuler add?
Ruler
**Ruler** is a lightweight, client-side selection and measurement tool for Minecraft 1.21.1 (Fabric). It lets you mark two positions in the world and instantly see a clean holographic 3D visualization of the selected area — along with all relevant measurements in a HUD overlay.
Inspired by WorldEdit CUI, but completely standalone. No server plugin or WorldEdit installation required.
How it works
Press **R** to activate the ruler (rebindable under Controls → Ruler).
- **Left-click** a block to set **Pos1**
- **Right-click** a block to set **Pos2**
That's it. The selection renders immediately.
Press **R** again to deactivate and clear the selection.
3D Visualization
The selection is rendered as a holographic wireframe box directly in the world:
- **XYZ color-coded edges** — X red, Y green, Z blue
- **Subtle inner grid** for spatial orientation
- **Transparent block highlights** at Pos1 (green) and Pos2 (red)
- Single positions are shown before the second is placed
- Clean, modern look — no chunky vanilla-style boxes
HUD Overlay
A small panel in the top-left corner shows:
| Field | Description |
|---|---|
| Pos1 / Pos2 | Block coordinates |
| Distance | Direct 3D diagonal (air-line) |
| X / Y / Z | Dimensions of the selection |
| Area | Footprint (X × Z) |
| Volume | Total blocks (X × Y × Z) |
Languages
Ruler ships with **37 languages** out of the box:
**Standard:** English, Deutsch, Français, Español, Italiano, Português, Русский, Українська, Polski, Nederlands, Svenska, Dansk, Norsk, Suomi, Čeština, Slovenčina, Magyar, Română, Türkçe, Ελληνικά, 简体中文, 繁體中文, 日本語, 한국어, العربية, עברית, Tiếng Việt, ภาษาไทย
Compatibility
- ✅ **Client-side only** — works on any server, no server mod needed
- ✅ **ModMenu** — appears correctly in the mod list
- ✅ Fabric API required
Requirements
- Minecraft **1.21.1**
- Fabric Loader **≥ 0.17.3**
- Fabric API
Project description from CurseForge.
Pick your setup
TheRuler by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.3
1 loader build26.2
1 loader build1.21.11
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
TheRuler versions and loaders
RulerModV1 26.3
ruler-1.0.2.jar
18 Sept 2026
RulerModV1 26.2
ruler-1.0.1.jar
17 Sept 2026
RulerModV1 1.21.11
ruler-1.0.0.jar
27 Jul 2026
Looking for an older file? The official CurseForge project page is in Resources.