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MapModCompanionMinecraft plugin for 1.21.9

Fixes Multi-world detection by simulating mod presence on the server side

server onlynewest supported 1.21.9TechnologyUtility
Latest version
0.10.0
Minecraft
1.8 to 1.21.9
Java
Java 21+
Loaders
Bukkit, Waterfall, Velocity, Spigot and 3 more
Licence
MIT
Downloads
10.2k
Updated
2 y ago
Available on
Modrinth
Space NodePartner

Host MapModCompanion servers

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

  • 1.21.9
  • Bukkit
  • Waterfall
  • Velocity
  • Spigot
  • One click plugin install
  • Paper and Purpur ready
  • Automatic updates
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

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

Other plugins
MinecraftThroughJavaEvidenceReleased
1.21.9Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord21+declared30 Sept 2025
1.21.8BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit21+declared17 Jul 2025
1.21.7BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit21+declared30 Jun 2025
1.21.6Spigot, Waterfall, Velocity, Paper, Folia, BungeeCord, Bukkit21+declared17 Jun 2025
1.21.5Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord21+declared25 Mar 2025
1.21.4BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit21+declared3 Dec 2024
1.21.3Folia, Waterfall, Velocity, Bukkit, Spigot, Paper, BungeeCord21+declared23 Oct 2024
1.21.2Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord21+declared22 Oct 2024
1.21.1Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord21+declared8 Aug 2024
1.21BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit21+declared13 Jun 2024
1.20.6BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit21+declared29 Apr 2024
1.20.5Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord21+declared23 Apr 2024
1.20.4Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord17+declared7 Dec 2023
1.20.3BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit17+declared4 Dec 2023
1.20.2BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit17+declared20 Sept 2023
1.20.1BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit17+declared12 Jun 2023
1.20Spigot, Waterfall, Velocity, Paper, Folia, BungeeCord, Bukkit17+declared2 Jun 2023
1.19.4Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord17+declared14 Mar 2023
1.19.3BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit17+declared7 Dec 2022
1.19.2BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit17+declared5 Aug 2022
1.19.1Spigot, Waterfall, Velocity, Paper, Folia, BungeeCord, Bukkit17+declared27 Jul 2022
1.19Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord17+declared7 Jun 2022
1.18.2BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit17+declared28 Feb 2022
1.18.1Folia, Waterfall, Velocity, Bukkit, Spigot, Paper, BungeeCord17+declared10 Dec 2021
1.18Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord17+declared30 Nov 2021
1.17.1Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord16+declared6 Jul 2021
1.17BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit16+declared8 Jun 2021
1.16.5BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit8+declared14 Jan 2021
1.16.4Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord8+declared29 Oct 2020
1.16.3Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord8+declared10 Sept 2020
1.16.2BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit8+declared11 Aug 2020
1.16.1BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit8+declared24 Jun 2020
1.16Folia, Waterfall, Velocity, Bukkit, Spigot, Paper, BungeeCord8+declared23 Jun 2020
1.15.2Bukkit, BungeeCord, Folia, Paper, Spigot, Velocity, Waterfall8+declared17 Jan 2020
1.15.1Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord8+declared16 Dec 2019
1.15BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit8+declared9 Dec 2019
1.14.4BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit8+declared19 Jul 2019
1.14.3Spigot, Waterfall, Velocity, Paper, Folia, BungeeCord, Bukkit8+declared24 Jun 2019
1.14.2Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord8+declared27 May 2019
1.14.1BungeeCord, Waterfall, Velocity, Spigot, Paper, Folia, Bukkit8+declared13 May 2019

28 older versions not shown.

Download

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

0.10.0release3 May 2024

MapModCompanion.jar · 0.1 MB · for 1.8, 1.8.1, 1.8.2, 1.8.3

Download latest
4c96ee9ace35…
Older versions17
  • 0.10.0-beta.73 Apr 20241.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.1 MB137 downloads15dc77c6421b…Get
  • 0.10.0-beta.623 Mar 20241.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.1 MB75 downloads0473571fb492…Get
  • 0.9.0-beta.213 Jan 20241.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.1 MB298 downloadsbfcf804897be…Get
  • 0.8.14 Jul 20231.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.1 MB458 downloads873acae2cd97…Get
  • 0.8.029 Mar 20231.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.1 MB216 downloadsbea767030208…Get
  • 0.8.0-beta.126 Mar 20231.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.1 MB105 downloads2507e19c807d…Get
  • 0.8.0-alpha.325 Mar 20231.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.1 MB1.0k downloads8ddf88d0daa7…Get
  • 0.8.0-alpha.125 Mar 20231.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.1 MB239 downloads3ac28c55f627…Get
  • 0.7.0-beta.218 Mar 20231.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.0 MB250 downloadsf1039dbe17e1…Get
  • 0.6.019 Sept 20221.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.0 MB749 downloadsce04909c65b2…Get
  • 0.6.0-beta.117 Sept 20221.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.0 MB230 downloads7b6fc6d9f105…Get
  • 0.5.0-beta.313 Sept 20221.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.0 MB233 downloadsc9ad53bbf6ce…Get
  • 0.5.0-beta.212 Sept 20221.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.0 MB266 downloads1febd1e886a1…Get
  • 0.5.0-beta.111 Sept 20221.8, 1.8.1, 1.8.2, 1.8.3, 1.8.40.0 MB272 downloads1484941a27fc…Get
  • 0.4.010 Sept 20221.18, 1.18.1, 1.18.2, 1.19, 1.19.10.0 MB181 downloads418806223ee4…Get
  • 0.3.19 Sept 20221.18, 1.18.1, 1.18.2, 1.19, 1.19.10.0 MB192 downloadsb4217b5778d4…Get
  • 0.3.08 Sept 20221.18, 1.18.1, 1.18.2, 1.19, 1.19.10.0 MB220 downloadsb0e86a54f635…Get

Frequently asked

Does MapModCompanion work on Minecraft 1.21.9?

Yes. 1.21.9 is the newest Minecraft version MapModCompanion 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 MapModCompanion support?

Everything the author has declared, from 1.8 up to 1.21.9. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install MapModCompanion on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which server software does MapModCompanion need?

Bukkit, Waterfall, Velocity, Spigot, Paper, Folia, BungeeCord. A build for one server platform will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for MapModCompanion?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the plugin itself.

What licence is MapModCompanion 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 MapModCompanion?

Download the file from the author's own release, drop it into your server's plugins folder, and restart the server. It generates its configuration on first start. Check the Minecraft version matches the one your server runs.

Where do I download MapModCompanion safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

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Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .