FNViaViewer

See what’s new without updating.

FNViaViewer is a client-side Fabric mod for Minecraft 1.21.11 that lets you join 26.3 servers and see their new blocks, items and sounds as they really are, instead of the older look-alikes you normally get.

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.
• 🧱 120 new blocks, 153 items and 153 sounds: 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.
• 🔊 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), about 640 KB plus sounds.
• ⚙️ Settings (with Mod Menu): turn translation, new blocks, new items or new sounds on or off.
• ✅ Tested 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.
• Not done yet: sign text, entity models (poplar boats, cushions) and new mobs.
• Only 1.21.11 → 26.3 for now; more versions are planned.

Full details and how it works: GitHub README.

🇪🇸 En español

Lo nuevo sin actualizar. Mod de Fabric para el cliente 1.21.11 que te deja entrar en servidores 26.3 y ver sus bloques, items y sonidos 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.