Top 6 Java modpack Projects

Slimefun4

8 915 9.4 Java

Slimefun 4 - A unique Spigot/Paper plugin that looks and feels like a modpack. We've been giving you backpacks, jetpacks, reactors and much more since 2013.

Project mention: vanilla 1.19.4 plugins | /r/MinecraftPlugins | 2023-05-13

Slimefun, and maybe some addons for it

Launcher

7 610 4.3 Java

🚀 Distribute your Minecraft modpacks with a custom launcher (by SKCraft)

Project mention: Custom launcher | /r/admincraft | 2023-05-23

Now I did find something from a quick google search. I've never used it though so trust in your will. https://github.com/SKCraft/Launcher Now, however, I would like to preface that you may have to deal with allowing your launcher to be supported through Microsoft as I read elsewhere about the PolyMC launcher having their MSA client ID rejected when they had drama (although this is different it may be something you have to get) but I am not an expert regarding the subject so I cannot confirm.

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
CMPDL

2 79 0.0 Java

A lightweight alternative to Twitch App for downloading Minecraft modpacks. (by skyecodes)
AutoModpack

1 79 8.8 Java

Enjoy a seamless modpack installation process and effortless updates with a user-friendly solution that simplifies management, making your gaming experience a breeze.
Cabricality

1 63 9.0 Java

[Quilt Modpack & Mod] A Create centered challengeable modpack inspired by 'Create: Above and Beyond'.
ToolProgression

2 7 0.0 Java

A small mod, which allows to set harvest levels of tools and blocks

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).