fastfastmap
by zamusix
fastfastmap is a lightweight minimap for Fabric that draws terrain, water depth and biome colours around the player, and it updates as the player moves.
What it does
The minimap renders tiles of terrain around the player. Water is shown down to the terrain beneath it, with depth shading in blue, and grass, leaves and water take on the colour of their biome. Height is shown by smooth brightness that follows the slope, rather than in discrete steps.
A red filled triangle with a white outline marks the player's direction and turns with the view. Scrolling the mouse wheel zooms toward the cursor position, and the zoom eases in and out instead of snapping. Tile resolution switches automatically as the view zooms in or out, and lower-resolution tiles stay on screen until higher-resolution ones finish loading, so the map does not show black squares while it loads.
The mod is client-side only, so players install it and servers do not need it. ModMenu Beta is optional and only adds a settings entry point for the mod. Files are published for Fabric, targeting 1.21.11, and the source code and issue tracker are public. The code is under the MIT License, so the project is open source.
Key features
Terrain and water view
Blocks are drawn from the surface, and water shows the terrain under its surface with depth shading.
Smooth height shading
Brightness follows the slope of the terrain continuously instead of in discrete steps.
Biome tinted colours
Grass, leaves and water are coloured per biome, so neighbouring regions can be told apart at a glance.
Zoom around the cursor
The scroll wheel zooms toward the mouse position, with a smooth animation between levels.
Automatic level of detail
Tile resolution changes with the zoom level, and low-resolution tiles fill gaps while detailed ones load.
Gallery
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.
Optional 1
Use cases
Who it’s for: Players on Fabric who want a minimap that shows water depth and biome colour, and who play on single-player or on a server that does not need the mod.
How it compares
Zoomyy is a Fabric client-side mod for 1.21.11 under All rights reserved, and its source is not open. Aerial3D is a client-side Fabric mod for 1.21.10 released under the MIT License, so it is open source, and it draws the map in 3D. ZoomW (WAIZA) is client-side and open source under the CC0 1.0 Universal license, with Fabric files for 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| fastfastmap | Fabric | 1.21.11 | Client-side only | 2026-03-10 |
| Zoomyy | Fabric | 1.21.11 | Client-side only | 2026-09-05 |
| Aerial3D | Fabric | 1.21.10 | Client-side only | 2025-11-27 |
| ZoomW (WAIZA) | Fabric | 1.21.1 | Client-side only | 2024-09-01 |
Questions
Does fastfastmap need Fabric API?
Do servers need fastfastmap installed?
Which game version does fastfastmap support?
Is ModMenu Beta needed to use the mod?
In the catalog
fastfastmap is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from zamusix
Similar mods
What the author says
A high-performance minimap mod for Minecraft 1.21.11 (Fabric). Built for speed — parallel chunk scanning, GPU tile caching, and seamless updates with zero flicker. Works alongside all major optimization mods.
Official listing
- Modrinth page
- modrinth.com/mod/fastfastmap
- Owner
- zamusix
- Published
- 2026-03-09
- Updated on Modrinth
- 2026-03-10
- Facts verified
- 2026-10-15