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Mob JournalMinecraft mod for 1.21.1

A Journal for all the mobs you've seen / discovered!

client and servernewest supported 1.21.1AdventureMobs
Latest version
1.3.9+1.20.1
Loader
Fabric
Licence
MIT
Downloads
14.4k
Updated
6 mo ago
Available on
Modrinth
Space NodePartner

Host Mob Journal servers

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

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

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024
1.20.1Fabric17+declared12 Jun 2023

Download

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

All 38 releases
1.3.9+1.20.1release2 Feb 2026

journal-1.3.9+1.20.1.jar · 0.5 MB · for 1.20.1

Download latest
4416b97d4fd6
Older versions24
  • 1.3.9+1.21.12 Feb 20261.21.10.5 MB7.1k downloadsb9d7374c7796Get
  • 1.3.8+1.20.131 Jan 20261.20.10.5 MB33 downloads3bc3cf152ac5Get
  • 1.3.8+1.21.131 Jan 20261.21.10.5 MB66 downloads527b866659deGet
  • 1.3.7+1.20.127 Jan 20261.20.10.5 MB39 downloads24243a59fc19Get
  • 1.3.7+1.21.127 Jan 20261.21.10.5 MB43 downloadsdb5cdc0db613Get
  • 1.3.6+1.20.118 Jan 20261.20.10.5 MB74 downloadscab9e302cbe8Get
  • 1.3.6+1.21.118 Jan 20261.21.10.5 MB85 downloads6e230cc5cb46Get
  • 1.3.5+1.20.116 Jan 20261.20.10.5 MB36 downloadsa39235641735Get
  • 1.3.5+1.21.116 Jan 20261.21.10.5 MB36 downloads9ff561344fd2Get
  • 1.3.4+1.20.16 Jan 20261.20.10.5 MB180 downloads1b3526ff8da7Get
  • 1.3.4+1.21.16 Jan 20261.21.10.4 MB549 downloadsdd31537a8274Get
  • 1.3.3+1.20.15 Jan 20261.20.10.5 MB35 downloads3431248ba8bbGet
  • 1.3.3+1.21.15 Jan 20261.21.10.4 MB35 downloads93f8d00ce1f6Get
  • 1.3.2.2+1.20.12 Jan 20261.20.10.5 MB52 downloads25420bb701c9Get
  • 1.3.2.2+1.21.131 Dec 20251.21.10.4 MB84 downloadscd6035d18128Get
  • 1.3.2.1+1.21.115 Oct 20251.21.10.4 MB756 downloads474e5df85e60Get
  • 1.3.2.1+1.20.115 Oct 20251.20.10.5 MB621 downloadse3b4b13a589bGet
  • 1.3.2+1.21.114 Oct 20251.21.10.4 MB37 downloads3a85686df0deGet
  • 1.3.2+1.20.114 Oct 20251.20.10.5 MB47 downloads5c986307a76bGet
  • 1.3.1+1.20.113 Sept 20251.20.10.5 MB167 downloadse72c42f9b260Get
  • 1.3.121 Aug 20251.21.10.4 MB1.1k downloads858f4dbe9b96Get
  • 1.3.010 Aug 20251.21.10.4 MB241 downloads73bd341253dbGet
  • 1.2.922 Jun 20251.21.10.4 MB796 downloadsfd3914a1be6bGet
  • 1.2.813 Jun 20251.21.10.4 MB152 downloadsc54cea8cfc36Get

Frequently asked

Does Mob Journal work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Mob Journal 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 Mob Journal support?

Everything the author has declared, from 1.20.1 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 Mob Journal 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 loader does Mob Journal need?

Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Mob Journal?

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 mod itself.

What licence is Mob Journal 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 Mob Journal?

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 Mob Journal 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.

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? .