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mod

EnvelopeMinecraft mod for 1.21.1

Letters. Packages. And Pigeons to deliver them across the world.

newest supported release 1.21.1TechnologyStorageCosmeticTechnology Item Fluid Energy Transport
Latest version
Envelope - NeoForge 1.21.1 - 0.8.1
Minecraft
1.21.1
Java
Java 21+
Loaders
NeoForge, Fabric
Licence
not stated
Downloads
203.9k
Updated
12 d ago
Available on
CurseForge

Screenshots

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

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Fabric21+declared8 Aug 2024

Download

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

Browse 28 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    Envelope - NeoForge 1.21.1 - 0.8.1 · 26 Oct 2026 · envelope-neoforge-1.21.1-0.8.1.jar

    Get NeoForge

  • Fabric

    Envelope - Fabric 1.21.1 - 0.8.1 · 26 Oct 2026 · envelope-fabric-1.21.1-0.8.1.jar

    Get Fabric

Most recently published release

Envelope - NeoForge 1.21.1 - 0.8.1release26 Oct 2026

envelope-neoforge-1.21.1-0.8.1.jar · 2.4 MB · for 1.21.1 · NeoForge

Download this release
f2f9510cbc66…
Older versions24
  • Envelope - Fabric 1.21.1 - 0.8.126 Oct 20261.21.12.2 MBfad6e673eb97…Get
  • Envelope - NeoForge 1.21.1 - 0.8.020 Oct 20261.21.12.4 MB0bb37ca395f3…Get
  • Envelope - Fabric 1.21.1 - 0.8.020 Oct 20261.21.12.2 MB1ffed4c0fb83…Get
  • Envelope - NeoForge 1.21.1 - 0.7.515 Aug 20261.21.12.1 MB6438c750876f…Get
  • Envelope - Fabric 1.21.1 - 0.7.515 Aug 20261.21.11.9 MB0c4d2fa064db…Get
  • Envelope - NeoForge 1.21.1 - 0.7.410 Aug 20261.21.12.1 MBc83bf4cab239…Get
  • Envelope - Fabric 1.21.1 - 0.7.410 Aug 20261.21.11.8 MB782cbd57225f…Get
  • Envelope - NeoForge 1.21.1 - 0.7.38 Aug 20261.21.12.1 MB0e6d7a40dcbd…Get
  • Envelope - Fabric 1.21.1 - 0.7.38 Aug 20261.21.11.8 MB0996c1719d7d…Get
  • Envelope - NeoForge 1.21.1 - 0.7.227 Jul 20261.21.12.1 MB392 downloads3f62aef04de5…Get
  • Envelope - Fabric 1.21.1 - 0.7.227 Jul 20261.21.11.8 MB2 downloadsf70808de1ac3…Get
  • Envelope - Fabric 1.21.1 - 0.7.123 Jul 20261.21.11.8 MB53 downloads04dacfea97d8…Get
  • Envelope - NeoForge 1.21.1 - 0.7.123 Jul 20261.21.12.1 MB77b76a41ef48…Get
  • Envelope - NeoForge 1.21.1 - 0.7.021 Jul 20261.21.12.1 MB496 downloadsdee350061949…Get
  • Envelope - Fabric 1.21.1 - 0.7.021 Jul 20261.21.11.8 MBd5f1816a146d…Get
  • Envelope - Fabric 1.21.1 - 0.6.211 Jun 20261.21.11.3 MB73 downloadsf8d794d857fe…Get
  • Envelope - NeoForge 1.21.1 - 0.6.211 Jun 20261.21.11.6 MB4a651cb23ae3…Get
  • Envelope - NeoForge 1.21.1 - 0.6.17 Jun 20261.21.11.6 MB30e3918f447f…Get
  • Envelope - Fabric 1.21.1 - 0.6.17 Jun 20261.21.11.3 MBceef697ab06b…Get
  • Envelope - NeoForge 1.21.1 - 0.6.016 Apr 20261.21.11.5 MB127 downloadsa297c22f9570…Get
  • Envelope - Fabric 1.21.1 - 0.6.016 Apr 20261.21.11.3 MB8cf3c53504f0…Get
  • Envelope - NeoForge 1.21.1 - 0.5.26 Feb 20261.21.11.3 MB26 downloadse4b90b114bba…Get
  • Envelope - Fabric 1.21.1 - 0.5.26 Feb 20261.21.11.1 MB6d28f3df6fb8…Get
  • Envelope - NeoForge 1.21.1 - 0.5.131 Jan 20261.21.11.3 MB37 downloads0b945ba0f666…Get

Frequently asked

Does Envelope work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Envelope 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 platform or loader does Envelope support?

NeoForge, 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 Envelope?

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.

How do I install Envelope?

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 Envelope safely?

Start with the author's page on CurseForge, 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.

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Details from CurseForge, where the author last updated it on 26 Oct 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? .