Heartbeat
by 1TheCrazy
Heartbeat places an Update Button inside the Mod Menu screen so players can check and install mod updates without leaving the game.
What it does
The update button appears in the Mod Menu list and lets a player apply available updates for installed mods directly from that screen, with one click for files from Modrinth. Files that cannot be fetched automatically can be handled through the browser for manual installation instead. The mod filters results so only updates matching the running Minecraft version and the Fabric loader are offered.
Heartbeat's background automatic updates were removed, so nothing changes on disk until the player chooses to act. Updates happen only through Mod Menu, and the player decides which ones to apply, which keeps version changes under the player's control. The mod is a client mod: servers run without it, and players need Fabric API and Mod Menu alongside it.
Heartbeat is released under the MIT License and is open source, with its source code and issue tracker public. It is published for Fabric only, with 12 release versions and the latest file, 2.0.0, built for 1.21.11 and dated 2026-01-05.
Key features
Update button in Mod Menu
An update button is added inside the Mod Menu interface, next to the installed mod list.
One-click Modrinth updates
Available updates can be applied from Modrinth with a single click.
Version filtering
Only updates compatible with the running Minecraft version and mod loader are listed.
Optional notifications
Players can turn update notifications on or off, so no alert appears unless wanted.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Who it’s for: Players who manage a Fabric setup with many mods and want to update them from Mod Menu, one at a time, without automatic changes running in the background.
How it compares
RotProxy is a Fabric client mod for 1.21.10 – 26.2, open source under the MIT License, and it changes nothing on the server side. Item Count Background is also a Fabric client mod under the MIT License, covering 1.21.5 – 26.2, and it is open source. CustomMc is a Fabric client mod for 1.21 – 1.21.11 that is not open source and is released under All rights reserved. Heartbeat handles updates, while these two alternatives focus on other client-side features.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Heartbeat | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-01-05 |
| RotProxy | Fabric | 1.21.10 – 26.2 | Client-side only | 2026-09-07 |
| Item Count Background | Fabric | 1.21.5 – 26.2 | Client-side only | 2026-07-01 |
| CustomMc | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-04-09 |
Questions
Does Heartbeat require Fabric API and Mod Menu?
Does Heartbeat need to be installed on the server?
Does Heartbeat update mods automatically in the background?
Which Minecraft versions does Heartbeat support?
In the catalog
Heartbeat is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from 1TheCrazy
Similar mods
What the author says
Perfect for players who want Mod Menu updates, version safety, and a clean workflow.
Official listing
- Modrinth page
- modrinth.com/mod/heartbeat
- Owner
- 1TheCrazy
- Published
- 2025-09-28
- Updated on Modrinth
- 2026-01-05
- Facts verified
- 2026-10-15