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Worldgen DevtoolsMinecraft mod for 26.4-snapshot-1

A mod that aids in the development of world generation data packs and mods. Allows reloading worldgen data packs in-game and resetting chunks. Colors jigsaw blocks by name and target.

newest supported 26.4-snapshot-1UtilityWorldgenManagement
Latest version
1.4.0+26.3-snapshot-2
Minecraft
1.20.5-pre4 to 26.4-snapshot-1
Java
Java 25+
Loader
Fabric
Licence
MIT
Downloads
9.5k
Updated
4 d ago
Available on
Modrinth
Space NodeOur hosting

Host Worldgen Devtools servers

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

  • 26.4-snapshot-1
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • 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 Worldgen Devtools declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
26.4-snapshot-1Fabric25+declared22 Sept 2026
26.3Fabric25+declared15 Sept 2026
26.3-rc-3Fabric25+declared14 Sept 2026
26.3-rc-2Fabric25+declared11 Sept 2026
26.3-snapshot-2Fabric25+declared30 Jun 2026
26.2Fabric25+declared16 Jun 2026
26.2-rc-2Fabric25+declared12 Jun 2026
26.1.2Fabric25+declared9 Apr 2026
26.1.1Fabric25+declared1 Apr 2026
26.1Fabric25+declared24 Mar 2026
26.1-rc-2Fabric25+declared20 Mar 2026
26.1-snapshot-2Fabric25+declared7 Jan 2026
26.1-snapshot-1Fabric25+declared16 Dec 2025
1.21.11Fabric21+declared9 Dec 2025
1.21.11-pre3Fabric21+declared25 Nov 2025
1.21.11-pre1Fabric21+declared19 Nov 2025
25w46aFabric21+declared11 Nov 2025
25w45aFabric21+declared4 Nov 2025
25w44aFabric21+declared28 Oct 2025
25w43aFabric21+declared21 Oct 2025
25w42aFabric21+declared14 Oct 2025
25w41aFabric21+declared9 Oct 2025
1.21.10Fabric21+declared7 Oct 2025
1.21.10-rc1Fabric21+declared2 Oct 2025
1.21.9Fabric21+declared30 Sept 2025
25w36bFabric21+declared2 Sept 2025
25w34bFabric21+declared19 Aug 2025
25w33aFabric21+declared12 Aug 2025
25w32aFabric21+declared5 Aug 2025
25w31aFabric21+declared29 Jul 2025
1.21.8Fabric21+declared17 Jul 2025
1.21.7Fabric21+declared30 Jun 2025
1.21.6Fabric21+declared17 Jun 2025
1.21.6-rc1Fabric21+declared12 Jun 2025
1.21.6-pre4Fabric21+declared10 Jun 2025
1.21.6-pre3Fabric21+declared4 Jun 2025
1.21.6-pre2Fabric21+declared2 Jun 2025
1.21.6-pre1Fabric21+declared28 May 2025
25w20aFabric21+declared13 May 2025
25w19aFabric21+declared6 May 2025

38 older versions not shown.

Download

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

All 60 releases
1.4.0+26.3-snapshot-2release1 Jul 2026

worldgenDevtools-1.4.0+26.3-snapshot-2.jar · 0.2 MB · for 26.3-snapshot-2

Download latest
64d9ecf423ef…
Older versions24
  • 1.4.0+26.2-rc-215 Jun 202626.2, 26.2-rc-20.3 MB128 downloads72eb62f83662…Get
  • 1.4.0+26.1-rc-222 Mar 202626.1.2, 26.1.1, 26.1, 26.1-rc-20.3 MB289 downloads6bc61389a41d…Get
  • 1.4.0+26.1-snapshot-2+0.141.29 Jan 202626.1-snapshot-20.3 MB24 downloads097d37f9d446…Get
  • 1.4.0+26.1-snapshot-1+0.140.331 Dec 202526.1-snapshot-10.3 MB34 downloads812c1923881e…Get
  • 1.4.0+26.1-snapshot-1+0.14021 Dec 202526.1-snapshot-10.3 MB38 downloadsbe2d60ef894f…Get
  • 1.4.0+1.21.11-pre325 Nov 20251.21.11, 1.21.11-pre30.3 MB758 downloadsc4a0a103cf3e…Get
  • 1.3.4+25w45a5 Nov 20251.21.11-pre1, 25w46a, 25w45a0.2 MB50 downloads65a8945db822…Get
  • 1.3.4+25w44a28 Oct 202525w44a0.2 MB98 downloads56d759827122…Get
  • 1.3.4+25w43a21 Oct 202525w43a0.2 MB75 downloads5861c0d7dc4c…Get
  • 1.3.4+25w42a15 Oct 202525w42a0.2 MB52 downloads152fa9de5cec…Get
  • 1.3.4+25w41a9 Oct 202525w41a0.2 MB68 downloadsfb992291b3f8…Get
  • 1.1.1+1.21.15 Oct 20251.21.10.2 MB317 downloads612e2cd8de36…Get
  • 1.3.4+1.21.105 Oct 20251.21.10, 1.21.10-rc1, 1.21.90.2 MB475 downloads625c7b1141b6…Get
  • 1.3.4+25w36b3 Sept 202525w36b0.2 MB47 downloads3d4e9e3953ed…Get
  • 1.3.4+25w34b22 Aug 202525w34b0.2 MB34 downloadsed253a5da119…Get
  • 1.3.4+25w33a12 Aug 202525w33a0.2 MB65 downloads44159f132c9d…Get
  • 1.3.4+25w32a6 Aug 202525w32a0.2 MB55 downloadsdca766ec7c8c…Get
  • 1.3.4+1.21.86 Aug 20251.21.80.2 MB296 downloads6b4d6350213a…Get
  • 1.3.3+25w31a31 Jul 202525w31a0.2 MB47 downloadsb001f0416e68…Get
  • 1.3.3+1.21.817 Jul 20251.21.80.2 MB79 downloads748e67d1e294…Get
  • 1.3.3+1.21.57 Jul 20251.21.50.2 MB88 downloads4abcea19f979…Get
  • 1.3.3+1.21.47 Jul 20251.21.40.2 MB109 downloadsc5323c6d6574…Get
  • 1.3.3+1.21.77 Jul 20251.21.70.2 MB95 downloadsf4b225983e92…Get
  • 1.3.2+1.21.730 Jun 20251.21.70.2 MB45 downloadsbaddb73f6280…Get

Frequently asked

Does Worldgen Devtools work on Minecraft 26.4-snapshot-1?

Yes. 26.4-snapshot-1 is the newest Minecraft version Worldgen Devtools 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 Worldgen Devtools support?

Everything the author has declared, from 1.20.5-pre4 up to 26.4-snapshot-1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Worldgen Devtools 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 Worldgen Devtools?

On the newest Minecraft version it supports, Java 25 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Worldgen Devtools 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 Worldgen Devtools?

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 Worldgen Devtools 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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

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

Always ShieldRemoves the obnoxious block delay of the shield, so it works the moment you press Right-Click. No more delay and confusion!Life Series DevDevelopment versions of the Life Series mod.CraftinggAdd new crafting recipes and items to Minecraft 1.20.x - 26.xShulkers In BundlesMaking bundles a little bit more convenient and useful by allowing to put shulkers in themFast NoiseVanilla Worldgen optimization modSimple DatapacksSimplifying the use of datapacks

Last checked 3 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? .