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Useful SpyglassMinecraft mod for 1.21.1

Viewing a mob or player with a spyglass displays some information on the screen. Also adds a unique enchantment for the spyglass.

client and servernewest supported release 1.21.1UtilityEquipment
Latest version
1.0.2
Minecraft
1.18.2 to 1.21.1
Java
Java 21+
Loaders
Fabric, NeoForge, Forge
Licence
GPL-3.0-only
Downloads
353.7k
Updated
5 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Useful Spyglass servers

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

  • 1.21.1
  • Fabric
  • NeoForge
  • Forge
  • 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 Useful Spyglass declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric, NeoForge, Forge21+declared8 Aug 2024
1.20.1Fabric, Forge, NeoForge17+declared12 Jun 2023
1.19.2Fabric, Forge, NeoForge17+declared5 Aug 2022
1.18.2Fabric, NeoForge, Forge17+declared28 Feb 2022

Download

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

For Minecraft 1.21.1

Choose the loader you use before downloading.

Most recently published release

1.0.2release6 Jun 2026

usefulspyglass-fabric-1.21.1-1.0.2.jar · 78 KB · for 1.21.1, 1.20.1 · Fabric, Forge, NeoForge

Choose file on publisher ↗
5422616ce51b…
Older versions13

Frequently asked

Does Useful Spyglass work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Useful Spyglass 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 Useful Spyglass support?

Everything the author has declared, from 1.18.2 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 Useful Spyglass 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 Useful Spyglass support?

Fabric, NeoForge, Forge. 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 Useful Spyglass?

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 Useful Spyglass under?

GPL-3.0-only, 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 Useful Spyglass?

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 Useful Spyglass 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.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!BookshelfAn open source library for other mods!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 6 Jun 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? .