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Modrinth Modrinth · Mod

How to install "ViaVersion"

Allow newer Java Edition clients to connect to older servers.

Author

kennytv

Downloads

2.1M

Last Updated

May 15, 2026

License

GPL-3.0-or-later

Mod Loaders

Fabric

Minecraft Versions

26.1.2 1.21.11 1.20.6 1.19.4 1.18.2 1.17.1
bungeecord folia paper sponge utility velocity

Quick Install ID

#viaversion

Install ViaVersion in GDLauncher

ViaVersion runs on Fabric. Pick whichever your existing instance uses, or create a new one. GDLauncher installs the correct loader automatically.

Install on Fabric

  1. Open GDLauncher and create a new instance (the + button on the Library page).
  2. Pick the Fabric loader and a Minecraft version that ViaVersion supports (26.1.2, 1.21.11, 1.20.6 are common choices).
  3. Open the new instance, go to the Addons tab, and click Add Addons.
  4. Paste the Quick Install ID #viaversion, find ViaVersion in the results, and hit Download. GDLauncher pulls dependencies automatically.
  5. Hit Play. That's it.

Before you install

Make sure your Minecraft version matches what ViaVersion supports. As of the latest release, 26.1.2, 1.21.11, 1.20.6 are supported. ViaVersion only runs on Fabric; mods built for other loaders won't work. GDLauncher checks compatibility for you and won't install something incompatible with the instance you've chosen.

Frequently Asked Questions

Is ViaVersion free?

Yes. ViaVersion is free to download and install through GDLauncher. GDLauncher itself is also free and ad-free.

What Minecraft versions does ViaVersion support?

ViaVersion supports Minecraft 26.1.2, 1.21.11, 1.20.6, 1.19.4, 1.18.2, 1.17.1. GDLauncher will automatically pick a compatible version when you install it.

Does ViaVersion require Forge or Fabric?

ViaVersion requires Fabric. GDLauncher will install the correct loader automatically when you create an instance.

How do I install ViaVersion?

Open GDLauncher, go to your instance's Addons tab, click Add Addons, and paste the Quick Install ID #viaversion. GDLauncher handles dependencies and the right Minecraft version automatically.

Who made ViaVersion?

ViaVersion is made by kennytv. The full project lives on Modrinth (https://modrinth.com/mod/viaversion).

Need help?

Read our troubleshooting guide, check the guides section, or join the GDLauncher Discord community.

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