ItemSigner
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
Sign items just like signed books in Minecraft. Create signed collectibles, certificates, contracts, rewards, currencies, and many other unique items with…
⬇ Download on Modrinth
ItemSigner
Sign items just like signed books in Minecraft.
Create signed collectibles, certificates, contracts, rewards, currencies, and many other unique items with your Minecraft username.
Commands
/sign
Signs the item in your main hand.
The item receives a permanent signature containing your Minecraft username and cannot be signed again.
/sign all
Signs all matching item stacks in your inventory.
The item in your main hand is used as the reference item. Only items of the same type will be signed.
Example:
- Hold a Coin Stack.
- Run
/sign all. - All Coin Stacks in your inventory are signed.
- Other items remain unchanged.
Example
Before:
After:
The signature is displayed directly in the item's lore:
Signed by Steve
Perfect For
- Currencies
- Collectibles
- Certificates
- Contracts
- Event Rewards
- Roleplay Servers
- Player Economies
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as itemsigner-1.0.0.jar — drop this file into the mods folder
- Download size: 10 KB
- Download link checked 23 Oct 2026 — working
These come from our own check of the pack file, not from the source page.