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Mapper BaseMinecraft mod for 1.21.1

A simple library mod that includes all common content shared by my other mods

client and servernewest supported release 1.21.1Library
Latest version
1.21.1-7.1.1.0
Minecraft
1.15.2 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
MIT
Downloads
76.9k
Updated
17 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Mapper Base servers

One click and Mapper Base is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Mapper Base declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021
1.17.1NeoForge, Forge16+declared6 Jul 2021
1.16.5NeoForge, Forge8+declared14 Jan 2021
1.16.4NeoForge, Forge8+declared29 Oct 2020
1.16.3Forge, NeoForge8+declared10 Sept 2020
1.16.1NeoForge, Forge8+declared24 Jun 2020
1.15.2NeoForge, Forge8+declared17 Jan 2020

Download

From Mapper Base’s own host. Nothing is re-hosted here.

Most recently published release

1.21.1-7.1.1.0release6 Jun 2025

mapperbase-1.21.1-7.1.1.0.jar · 0.2 MB · for 1.21.1 · NeoForge

Download this release
111cdca4fa93…
Older versions17
  • 1.21.1-7.0.0.026 Apr 20251.21.10.2 MB306 downloads452131b001ab…Get
  • 1.20.1-6.0.0.026 Apr 20251.20.10.2 MB25.6k downloads58e1d1d50385…Get
  • 5.0.0.218 Jun 20231.19.20.2 MB3.7k downloads2fc75da10d72…Get
  • 4.0.1.013 Nov 20221.18.20.2 MB31.5k downloads161d705caf1d…Get
  • 4.0.0.113 Nov 20221.18.10.2 MB275 downloads6e3813e50157…Get
  • 4.0.0.013 Nov 20221.18.10.2 MB226 downloadsc5dced530fb4…Get
  • 3.0.0.013 Nov 20221.17.10.2 MB351 downloads30140314ba5f…Get
  • 2.4.0.013 Nov 20221.16.50.2 MB11.0k downloadsfb89e7150503…Get
  • 2.3.0.013 Nov 20221.16.40.2 MB406 downloads7a5a01a51622…Get
  • 2.2.0.013 Nov 20221.16.30.2 MB265 downloads63c62a2375c6…Get
  • 2.1.0.113 Nov 20221.16.30.2 MB226 downloadsa57ef1d1516d…Get
  • 2.1.0.013 Nov 20221.16.30.2 MB197 downloadsb3782533d15d…Get
  • 2.0.0.013 Nov 20221.16.10.2 MB265 downloadsb549c5d07488…Get
  • 1.1.1.013 Nov 20221.15.20.2 MB415 downloadsc9c89c28c3aa…Get
  • 1.1.0.013 Nov 20221.15.20.2 MB239 downloads047f31e8e75d…Get
  • 1.0.0.113 Nov 20221.15.20.2 MB227 downloads106fa400024c…Get
  • 1.0.0.013 Nov 20221.15.20.2 MB232 downloadscf154abf7a53…Get

Frequently asked

Does Mapper Base work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Mapper Base declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Mapper Base support?

Everything the author has declared, from 1.15.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Mapper Base on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Mapper Base support?

NeoForge, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Mapper Base?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Mapper Base under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Mapper Base?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Mapper Base safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!BookshelfAn open source library for other mods!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from Modrinth, where the author last updated it on 6 Jun 2025. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .