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Block DetectiveMinecraft mod for 1.21.10

This mod shows you the properties of all blocks & items (vanilla + modded) as tooltips and JEI/REI/EMI info pages! Useful for mapmaker, pack maker, modder and redstoner!

client onlynewest supported 1.21.10UtilityManagement
Latest version
v.4.0.0
Minecraft
1.18 to 1.21.10
Java
Java 21+
Loaders
NeoForge, Forge
Licence
LicenseRef-All-Rights-Reserved
Downloads
4.2k
Updated
12 mo ago
Available on
Modrinth

Screenshots

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

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.10NeoForge, Forge21+declared7 Oct 2025
1.21.9NeoForge, Forge21+declared30 Sept 2025
1.21.5Forge, NeoForge21+declared25 Mar 2025
1.21.4NeoForge, Forge21+declared3 Dec 2024
1.21.3Forge, NeoForge21+declared23 Oct 2024
1.21.2NeoForge, Forge21+declared22 Oct 2024
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.21Forge, NeoForge21+declared13 Jun 2024
1.20.4NeoForge, Forge17+declared7 Dec 2023
1.20.3NeoForge, Forge17+declared4 Dec 2023
1.20.2NeoForge, Forge17+declared20 Sept 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.20NeoForge, Forge17+declared2 Jun 2023
1.19.4Forge, NeoForge17+declared14 Mar 2023
1.19.3NeoForge, Forge17+declared7 Dec 2022
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.19.1NeoForge, Forge17+declared27 Jul 2022
1.19NeoForge, Forge17+declared7 Jun 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021
1.18NeoForge, Forge17+declared30 Nov 2021

Download

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

v.4.0.0release8 Oct 2025

BlockDetective-1.21.10-(v.4.0.0-NEO).jar · 0.2 MB · for 1.21.10, 1.21.9

Download latest
453c5028c191…
Older versions11
  • v.3.3.027 Mar 20251.21.50.2 MB153 downloads29cf2c3be346…Get
  • v.3.2.026 Mar 20251.21.4, 1.21.3, 1.21.20.2 MB122 downloads292e696eb4c6…Get
  • v.3.1.024 Mar 20251.21.4, 1.21.3, 1.21.20.2 MB38 downloads5c284ad71095…Get
  • v.3.0.07 Feb 20251.21.4, 1.21.3, 1.21.20.2 MB40 downloadsfe319fa3b4c0…Get
  • v.2.1.013 Jul 20241.21.1, 1.210.2 MB876 downloadse3e114590c21…Get
  • v.2.0.09 Jul 20241.210.2 MB89 downloads92fd7ee47758…Get
  • v.1.3.126 Jan 20241.20.4, 1.20.3, 1.20.20.2 MB141 downloads20471098e08e…Get
  • v.1.3.022 Dec 20231.20.4, 1.20.3, 1.20.20.2 MB104 downloads3ca261fe3e5b…Get
  • v.1.2.021 Jun 20231.20.4, 1.20.3, 1.20.2, 1.20.1, 1.205.2 MB170 downloadsc07e6b8a4215…Get
  • v.1.1.215 Nov 20221.19.4, 1.19.3, 1.19.2, 1.19.1, 1.190.2 MB304 downloadsc00294325c19…Get
  • v.1.1.015 Nov 20221.18.2, 1.18.1, 1.180.2 MB207 downloads18784c8b14fe…Get

Frequently asked

Does Block Detective work on Minecraft 1.21.10?

Yes. 1.21.10 is the newest Minecraft version Block Detective 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 Block Detective support?

Everything the author has declared, from 1.18 up to 1.21.10. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Block Detective on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does Block Detective support?

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 Block Detective?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Block Detective 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 Block Detective?

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 Block Detective 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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Armor HiderHide or adjust the transparency of armor, glint, and offhand items - with full multiplayer sync. No dependencies required.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.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

Details from Modrinth, where the author last updated it on 8 Oct 2025. 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? .