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SeedMapperMinecraft mod for 26.3

In-game Minecraft Fabric mod that allows you to do various things with the world seed.

client onlynewest supported release 26.3UtilityGame MechanicsWorldgen
Latest version
2.38.0
Minecraft
1.16.5 to 26.3
Java
Java 25+
Loader
Fabric
Licence
LGPL-3.0-or-later
Downloads
137.7k
Updated
5 d ago
Available on
Modrinth

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
26.3Fabric25+declared15 Sept 2026
26.2Fabric25+declared16 Jun 2026
26.1.2Fabric25+declared9 Apr 2026
26.1.1Fabric25+declared1 Apr 2026
26.1Fabric25+declared24 Mar 2026
1.21.11Fabric21+declared9 Dec 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.10-rc1Fabric21+declared2 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.5Fabric21+declared25 Mar 2025
1.21.4Fabric21+declared3 Dec 2024
1.21.3Fabric21+declared23 Oct 2024
1.21.2Fabric21+declared22 Oct 2024
1.21.1Fabric21+declared8 Aug 2024
1.21Fabric21+declared13 Jun 2024
1.20.6Fabric21+declared29 Apr 2024
1.20.5Fabric21+declared23 Apr 2024
1.20.4Fabric17+declared7 Dec 2023
1.20.3Fabric17+declared4 Dec 2023
1.20.2Fabric17+declared20 Sept 2023
1.20.1Fabric17+declared12 Jun 2023
1.20Fabric17+declared2 Jun 2023
1.19.4Fabric17+declared14 Mar 2023
1.19.3Fabric17+declared7 Dec 2022
1.19.2Fabric17+declared5 Aug 2022
1.19.1Fabric17+declared27 Jul 2022
1.19Fabric17+declared7 Jun 2022
1.18.2Fabric17+declared28 Feb 2022
1.18.1Fabric17+declared10 Dec 2021
1.18Fabric17+declared30 Nov 2021
1.17.1Fabric16+declared6 Jul 2021
1.17Fabric16+declared8 Jun 2021
1.16.5Fabric8+declared14 Jan 2021

Download

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

Browse 43 indexed releases

Most recently published release

2.38.0release2 Nov 2026

seedmapper-2.38.0.jar · 8.6 MB · for 26.3 · Fabric

Download this release
0fd2c4e46560…
Older versions24
  • 2.37.026 Oct 202626.38.6 MBc4facae55f6f…Get
  • 2.36.119 Oct 202626.37.8 MBa9b37ed2122a…Get
  • 2.36.07 Oct 202626.37.8 MB347b7e1da18e…Get
  • 2.35.027 Sept 202626.35.7 MBd4be368d0469…Get
  • 2.34.017 Sept 202626.35.7 MBffc21a4f3575…Get
  • 2.33.011 Sept 202626.35.7 MB43cb7c68e44e…Get
  • 2.32.16 Sept 202626.25.5 MB0301db1712bb…Get
  • 2.32.02 Sept 202626.25.6 MBb54589a42014…Get
  • 2.31.128 Aug 202626.25.5 MB00fac96e9210…Get
  • 2.31.026 Aug 202626.25.5 MBeebb5542ea9c…Get
  • 2.30.016 Aug 202626.25.4 MBc872f5455b04…Get
  • 2.29.17 Aug 202626.25.4 MB980f4f8ce486…Get
  • 2.29.026 Jul 202626.25.4 MB567e33f6e1d0…Get
  • 2.28.023 Jul 202626.24.8 MB421a3a55c709…Get
  • 2.27.024 Jun 202626.24.7 MB5e2e93087b30…Get
  • 2.26.017 Jun 202626.24.7 MB96cc7aab887c…Get
  • 2.25.115 Jun 202626.24.6 MBc54cd3771dbf…Get
  • 2.25.015 Jun 202626.24.6 MB403b3a25aa5e…Get
  • 2.24.021 May 202626.1.2, 26.1.1, 26.14.6 MB0f3b4b29c3fe…Get
  • 2.23.014 May 202626.1.2, 26.1.1, 26.14.6 MBcc10341ff02a…Get
  • 2.22.33 May 202626.1.2, 26.1.1, 26.14.5 MB5db1c4794372…Get
  • 2.22.29 Apr 202626.1.2, 26.1.1, 26.13.9 MB6dc261177e0d…Get
  • 2.22.17 Apr 202626.1.1, 26.13.9 MBf726dd8fda6d…Get
  • 2.22.023 Mar 202626.1.1, 26.13.9 MB881671c1c122…Get

Frequently asked

Does SeedMapper work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version SeedMapper 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 SeedMapper support?

Everything the author has declared, from 1.16.5 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.

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

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does SeedMapper support?

Fabric. 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 SeedMapper?

Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is SeedMapper under?

LGPL-3.0-or-later, 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 SeedMapper?

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 SeedMapper 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.

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.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Details from Modrinth, where the author last updated it on 2 Nov 2026. 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? .