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Post It!Minecraft mod for 1.21.1

A mod that adds sticky notes to Minecraft!

client and servernewest supported release 1.21.1UtilityDecorationCursed
Latest version
1.1.0
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
1.3k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Post It! servers

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

  • 1.21.1
  • NeoForge
  • 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 Post It! declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Post It!’s own host. Nothing is re-hosted here.

Most recently published release

1.1.0beta3 Sept 2026

postit-1.1.0.jar · 0.1 MB · for 1.21.1 · NeoForge

Download this release
fba2d5653bb2…
Older versions3
  • 1.0.25 Aug 20261.21.172 KBf05c7e0c0ded…Get
  • 1.0.131 Jul 20261.21.169 KBd0520c20a367…Get
  • 1.0.031 Jul 20261.21.169 KBf794bdf97e73…Get

Frequently asked

Does Post It! work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Post It! declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Post It! 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 platform or loader does Post It! support?

NeoForge. 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 Post It!?

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.

What licence is Post It! under?

LicenseRef-All-Rights-Reserved, 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 Post It!?

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 Post It! 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!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!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.

Details from Modrinth, where the author last updated it on 3 Sept 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? .