Yes. ViaFabric is free to download from Modrinth. Its license is GPL-3.0-only.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

ViaFabric — Minecraft Mods | NxLabs

About ViaFabric

From Modrinth

Allows to connect to older servers with older versions

This mod implements ViaVersion on Fabric servers and clients, allowing you to connect to different Minecraft versions.

It can be installed on Legacy Fabric 1.8.9 and 1.12.2, and Fabric 1.14.4-1.20.4.

If you are using the latest Minecraft version and care about the gameplay being more enjoyable/functional, you may want to check ViaFabricPlus out.

Requires Fabric API for Minecraft 1.14+.

Requires Legacy Fabric API for Minecraft 1.8.9

For more information, go to GitHub repository.

Addons (allows older clients on newer servers):

https://modrinth.com/mod/viabackwards

https://modrinth.com/mod/viarewind

What's is the difference between ViaFabric and ViaFabricPlus?

Differences with ViaFabricPlus

| | ViaFabric | ViaFabricPlus | |----------------------------------|-------------------------------------------------|-----------------------------------------------------------------| | Can be installed on | Multiple client/server versions with fabric | Latest client-side version with fabric | | Objectives | Simply implement ViaVersion | Implements ViaVersion with client-side fixes to version changes | | How does it work? | Modifying packets at network code | Modifying client code more deeply | | Triggering anti-cheats | Very likely | Mostly not |

Forge version: https://modrinth.com/mod/viaforge

Discord: https://discord.gg/viaversion

Highlights

From source data

Game versions

Supports 50 Minecraft versions, the newest being 26.3.

Loaders

Runs on Fabric.

Footprint

Rated a light load on a server.

ViaFabric on Nxeon

From our catalogue

One-click install: Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side: Optional on the server
Server type needed: Fabric
Server load: light
Smallest plan we suggest: Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build: 0.4.22+188-26.x (alpha), released 2026-10-22

Game versions by loader

Loader	Game versions	Newest
Fabric	1.14.4 to 26.3 (13 versions)	26.3

From 8 recorded builds of ViaFabric.

Recent builds

Build	Released	Game versions	Loaders
0.4.22+188-26.x alpha	2026-10-22	26.1 to 26.3 (5 versions)	Fabric
0.4.22+187-26.x alpha	2026-10-22	26.1 to 26.3 (5 versions)	Fabric
0.4.22+186-26.x alpha	2026-10-02	26.1 to 26.3 (5 versions)	Fabric
0.4.22+185-26.x alpha	2026-09-20	26.1 to 26.3 (5 versions)	Fabric
0.4.22+184-1.14-1.21 alpha	2026-09-20	1.14.4 to 1.21.11 (8 versions)	Fabric
0.4.21+183-26.x alpha	2026-09-18	26.1 to 26.3 (5 versions)	Fabric

Dependencies

Required: modrinth project P7dR8mSH (modrinth, not in our catalogue)
Bundled: modrinth project P1OZGk5p (modrinth, not in our catalogue)

Declared by the newest build that lists any. Required ones are installed with it on one-click installs.

Run ViaFabric on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog

Listed on Modrinth as “Mods”

Gameplay & overhauls

New mechanics, content and overhauls that change how the game plays.

Works on a server

From source side support

Modrinth lists server-side support for ViaFabric as optional: it can run on a server, but isn’t required there.

Compatibility

Game: Minecraft
Loaders: Fabric
Runs on: Serveroptional on the server
Game versions: 26.3 and 49 earlier

Verified at the source

✓ModrinthOfficial listing, checked 2026-10-23Open ↗
✓Authorkennytv, as published on Modrinth
✓LicenseGPL-3.0-onlyFree

ViaFabric