CurseForge · Minecraft mod
FNViaViewer
See what's new without updating: join 26.3 servers from 1.21.7 to 26.2 and see their real new blocks, items, sounds and mobs.
Quick answer
Which FNViaViewer release should I use?
FNViaViewer 0.4.0 targets 1.21.8, 1.21.7, 1.21.9 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is FNViaViewer required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does FNViaViewer 0.4.0 need?
FNViaViewer 0.4.0. Change the file and its required mods may change too.
Install Fabric API first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
1 extra mod was pulled in by another dependency. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add FNViaViewer without breaking your instance.
Built for FNViaViewer 0.4.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use FNViaViewer 0.4.0. It targets 1.21.8, 1.21.7, 1.21.9 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside FNViaViewer 0.4.0. It opens that exact file at the source.
About this project
What does FNViaViewer add?
See what's new without updating.
FNViaViewer is a client-side Fabric mod for Minecraft 1.21.7 to 26.2 that lets you join 26.3 servers and see their new blocks, items, sounds and mobs as they really are, instead of the older look-alikes you normally get.
One jar for every supported version: Fabric loads the right one for your game.
Why?
Protocol translators let an older client join a newer server. Content your version doesn't have gets swapped for something similar: poplar planks become birch, cinnabar becomes granite, a sulfur spike becomes pointed dripstone. FNViaViewer shows you the real thing.
Features
- 🌐 Works on any 26.3 server, whether or not it runs ViaVersion. Nothing is needed on the server.
- 🧱 Up to 166 new blocks, 227 items and 263 sounds (depending on your version): the full poplar wood set, cinnabar and sulfur building blocks, wool and concrete slabs and stairs, the golden dandelion, cushions, explorer maps and more.
- 🏃 No rubber-banding: collision, light and hardness match what the server expects.
- 🐚 Mobs your version doesn't have (nautilus, camel husk, parched, copper golem…) with their real shape and animations, plus the 26.x babies and the sulfur cube.
- 🔊 New sounds where 26.3 has them.
- 🎨 No Mojang files inside the mod: the 26.3 textures and sounds are downloaded from Mojang's official servers on first launch (SHA-1 checked), only what your version is missing.
- ⚙️ Settings (with Mod Menu): turn translation, new blocks, new items or new sounds on or off.
- ✅ Tested on 1.21.11 with Sodium and Xaero's maps. Iris support is built in (new blocks use their look-alike's shader ID).
Good to know
- Needs internet on first launch (to download the 26.3 assets).
- Not compatible with ViaFabricPlus or ViaFabric.
- Only 1.21.11 has been played on a server so far; the other versions start up fine but are not tested in game yet.
- New mobs on older clients: no nautilus saddle or armor, and no items in the copper golem's hand.
- Only 1.21.7–26.2 clients and 26.3 servers for now; older versions are planned.
Full details and how it works: GitHub README.
🇪🇸 En español
Lo nuevo sin actualizar. Mod de Fabric para clientes 1.21.7 a 26.2 (un solo jar para todas) que te deja entrar en servidores 26.3 y ver sus bloques, items, sonidos y mobs nuevos tal como son, en vez de los parecidos antiguos. Funciona tenga el servidor ViaVersion o no, sin tirones, y baja las texturas y sonidos de Mojang la primera vez (el mod no lleva ningún archivo de Mojang). Con Mod Menu puedes activar o desactivar cada tipo de contenido. No es compatible con ViaFabricPlus ni ViaFabric.
Todos los detalles en el README en español.
Credits
FNViaViewer bundles ViaVersion and ViaBackwards and adapts connection code from ViaFabricPlus, all under GPLv3. Huge thanks to the ViaVersion team. Not affiliated with Mojang Studios or the ViaVersion team.
Project description from CurseForge.
Pick your setup
FNViaViewer by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.11
1 loader build1.21.10
1 loader build1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
FNViaViewer versions and loaders
FNViaViewer 0.4.0
fnviaviewer-0.4.0-universal.jar
7 Nov 2026
FNViaViewer 0.3.0
fnviaviewer-0.3.0.jar
6 Nov 2026
FNViaViewer 0.2.0
fnviaviewer-0.2.0.jar
2 Nov 2026
FNViaViewer 0.1.1
fnviaviewer-0.1.1.jar
1 Nov 2026
FNViaViewer 0.1.0
fnviaviewer-0.1.0.jar
1 Nov 2026
Looking for an older file? The official CurseForge project page is in Resources.