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HeartDevMinecraft mod for 1.21.4

API that allows developers to easly access the health bar rendering system

client onlynewest supported release 1.21.4UtilityLibrary
Latest version
1.1.3.4.1-devonly21.0-21.1
Minecraft
1.21 to 1.21.4
Java
Java 21+
Loader
NeoForge
Licence
MIT
Downloads
487
Updated
6 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 HeartDev declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.4NeoForge21+declared3 Dec 2024
1.21.3NeoForge21+declared23 Oct 2024
1.21.2NeoForge21+declared22 Oct 2024
1.21.1NeoForge21+declared8 Aug 2024
1.21NeoForge21+declared13 Jun 2024

Download

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

Browse 27 indexed releases

For Minecraft 1.21.4

Choose the loader you use before downloading.

  • NeoForge

    1.1.3-neoforge21.4 · 13 Jul 2025 · heartdev-1.1.3-neoforge21.4.jar

    Get NeoForge

Most recently published release

1.1.3.4.1-devonly21.0-21.1alpha17 May 2026

heartdev-1.1.3.4.1-devonly21.0-21.1.jar · 58 KB · for 1.21.1, 1.21 · NeoForge

Download this release
b3dd05c1418f…
Older versions24
  • 1.1.3.11-devonly21.0-21.116 Nov 20251.21.1, 1.2183 KB24 downloadsb154d93db74f…Get
  • 1.1.3.9-devonly21.0-21.120 Oct 20251.21.1, 1.2184 KB15 downloads9b70a527b8f8…Get
  • 1.1.3.8-devonly21.0-21.128 Sept 20251.21.1, 1.2183 KB18 downloads81154ff7199b…Get
  • 1.1.3.7-devonly21.0-21.125 Sept 20251.21.1, 1.2183 KB14 downloadsdaf51bd2b4ed…Get
  • 1.1.3.6-devonly21.0-21.119 Sept 20251.21.1, 1.2183 KB17 downloads05706b49bb1b…Get
  • 1.1.3.4-devonly21.0-21.118 Aug 20251.21.1, 1.2158 KB16 downloadsc6306f0e0341…Get
  • 1.1.3.3-devonly21.0-21.118 Aug 20251.21.1, 1.2159 KB19 downloadsbb782535df62…Get
  • 1.1.3.2-devonly21.0.21.114 Aug 20251.21.1, 1.2158 KB18 downloadseeee0ec67a0a…Get
  • 1.1.3.1-devonly21.0-21.114 Aug 20251.21.1, 1.2158 KB18 downloads8eb64a51f386…Get
  • 1.1.3-neoforge21.413 Jul 20251.21.455 KB18 downloadsc1a10f0f2b1c…Get
  • 1.1.3-neoforge21.2-21.313 Jul 20251.21.3, 1.21.255 KB17 downloads2a15a355a9ef…Get
  • 1.1.3-neoforge21.0-21.113 Jul 20251.21.1, 1.2158 KB24 downloads67564645e9ec…Get
  • 1.1.2-neoforge21.416 Jun 20251.21.454 KB20 downloads4b869f60ec21…Get
  • 1.1.2-neoforge21.2-21.316 Jun 20251.21.3, 1.21.254 KB16 downloadsf48caaa6b6a3…Get
  • 1.1.2-neoforge21.0-21.116 Jun 20251.21.1, 1.2157 KB23 downloads576e98af64bc…Get
  • 1.1.1-neoforge21.411 Jun 20251.21.454 KB17 downloadsdf3b9793e486…Get
  • 1.1.1-neoforge21.2-21.311 Jun 20251.21.3, 1.21.254 KB16 downloads9de6520f6875…Get
  • 1.1.1-neoforge21.0-21.111 Jun 20251.21.1, 1.2158 KB19 downloadsd552a9d2d3e6…Get
  • 1.1.0-neoforge21.411 Jun 20251.21.454 KB18 downloads6fd8ac19bb5c…Get
  • 1.1.0-neoforge21.2-21.311 Jun 20251.21.3, 1.21.254 KB14 downloadsa69cc8cc9489…Get
  • 1.1.0-neoforge21.0-21.111 Jun 20251.21.1, 1.2158 KB16 downloads634b154fa89a…Get
  • 1.1.010 Jun 20251.21.1, 1.2159 KB21 downloads162949c389c9…Get
  • 1.0.610 Jun 20251.21.159 KB17 downloadsdca221dccf65…Get
  • 1.0.59 Jun 20251.21.159 KB27 downloadsa6ce5b6b8c94…Get

Frequently asked

Does HeartDev work on Minecraft 1.21.4?

Yes. 1.21.4 is the newest Minecraft version HeartDev 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 HeartDev support?

Everything the author has declared, from 1.21 up to 1.21.4. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install HeartDev 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 HeartDev 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 HeartDev?

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 HeartDev 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 HeartDev?

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 HeartDev 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.

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Details from Modrinth, where the author last updated it on 17 May 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 51 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .