The most reliable way to find your save location is through the Yuzu interface:
Master Guide: Managing Your Save Data for Super Smash Bros. Ultimate on Yuzu Portable save data super smash bros ultimate yuzu portable
Managing save data for Super Smash Bros. Ultimate on a portable version of The most reliable way to find your save
⚠️ Do rename or edit the main file directly — Yuzu uses strict checksums. Use Yuzu's built-in save manager for exporting/importing. Use Yuzu's built-in save manager for exporting/importing
To back up or move your progress (characters, Spirits, GSP, settings):
Beyond simple backups, the portable save data system facilitates a "plug-and-play" lifestyle. A player can maintain their competitive settings, Spirit collections, and DLC unlocks on a single external drive. When this drive is connected to any compatible computer, Yuzu recognizes the internal "user" folder and immediately loads the player’s specific profile. This level of flexibility was previously unheard of in traditional console gaming, where save data is often locked behind proprietary cloud walls or specific hardware. Conclusion
The "Portable" version of Yuzu is preferred by many because it keeps all your data—firmware, keys, shaders, and —within a single folder. This makes it incredibly easy to: Play on multiple computers without re-configuring settings. Keep your SSBU progress on an external SSD. Quickly back up your entire emulated Switch environment. Locating Your SSBU Save Data