BetterConfigSync

Config Sync
Save your entire Minecraft setup with one click and load it anywhere.
Config Sync is a lightweight client-side mod that lets you export all your settings into a simple short code.
Whether you’re switching PCs, testing different modpacks, or playing on a laptop and desktop — just save your settings once, copy the code, and paste it on any other instance to instantly restore everything.
Features:

Save video settings, keybinds, sound, chat, resource packs, and most mod configurations
Generate a short, easy-to-share code (e.g. 8xne5n6)
Load your settings on any PC or Minecraft instance in seconds
No file copying, no cloud storage, no hassle
Works with Forge, Fabric, NeoForge & Quilt
Client-side only (safe for multiplayer)

Perfect for players who use multiple computers, heavily modded setups, or just want to quickly share their optimized config with friends.
One code = Your perfect setup, everywhere.