Coleus
by Master-Bw3
Coleus is a Fabric utility mod for opening guidebooks in a web browser while the game is running.
What it does
Coleus lets players view guidebooks in a web browser. The books are hosted locally by the game, so they are only reachable while Minecraft is running, and the host machine must serve them itself. The mod needs Fabric API, Fabric Language Kotlin and Lavender to start. Only the client needs it, and the build targets Fabric for 1.21 – 1.21.4 under a custom license that is not open source.
Key features
Local guidebook hosting
Guidebooks are served from the running game on the player's own machine rather than from an external website.
Browser viewing
Books open in a web browser, using the Lavender addon to connect the guidebook content to the browser view.
Current file for 1.21.4
The latest file, 1.4.0 from 2026-06-22, is built for 1.21.4, with earlier release versions also available.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 3
How it compares
Domix's Guidebook is a Fabric option for 1.21.1 that runs on client and server and is open source under the GNU Lesser General Public License v3.0 only. Web Window Mod is client-side only, covers 1.21.1 – 1.21.11, and is not open source under the MIT License.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Coleus | Fabric | 1.21 – 1.21.4 | Client-side only | 2026-06-22 |
| Domix's Guidebook | Fabric | 1.21.1 | Client and server | 2026-04-05 |
| Web Window Mod | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-10-04 |
Questions
Does Coleus need Fabric API?
Can Coleus run on a server?
In the catalog
Coleus 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.
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/coleus
- Owner
- Master-Bw3
- Published
- 2025-07-13
- Updated on Modrinth
- 2026-06-22
- Facts verified
- 2026-10-15