Nintendo Switch Online offers cloud saves, and JKSV offers local save management, so are they substitutes? Not really: they protect different things, under different rules, with different levels of control. This comparison lays out coverage, requirements and file control honestly, so you can decide whether you need one, the other, or both. JKSV is on our download page for Switch 1 owners with CFW. More comparisons are on the comparisons hub.
Coverage: supported games vs everything on the console
NSO cloud saves cover only supported games. Most major titles participate, but support is the publisher’s and Nintendo’s choice, and the exceptions tend to be exactly the games players worry about most. JKSV, running locally on a modded Switch 1, works at the console’s save level: it can back up the save data present on the machine across the full range of types — Account, System, BCAT, Device-Shared, Temporary, Cache and System BCAT. If a save exists on your Switch 1, JKSV can copy it, whether or not anyone opted that game into a cloud programme.
Coverage also differs by hardware. NSO cloud saves are Nintendo’s service for its consoles, while JKSV exists only on Switch 1 with Atmosphère; it does not run on Switch 2, as detailed in the Switch 2 status explainer.
Requirements: a subscription vs a modded console
NSO cloud saves require a paid Nintendo Switch Online subscription and the games and console staying in good standing with that service. Stop subscribing, and the cloud side of the arrangement stops with it. JKSV requires no subscription and no account; its price of entry is a Switch 1 set up with custom firmware, which is a different kind of commitment and not one every owner wants to make. Neither requirement is hidden, but they are very different doors into save protection.
Cost is therefore not a simple comparison. One charges money continuously, the other asks for a modded console once. Which is ‘cheaper’ depends on what you already own and how you already play.
Control: their cloud vs your files
The deepest difference is control. NSO saves live in Nintendo’s cloud, usable through Nintendo’s restore flow, and you cannot download them as files, open them, edit them, archive them yourself or move them outside the service. JKSV gives you actual files: folders or ZIPs in /JKSV/ on your SD card, ready to copy to a PC, store with your own cloud backup, edit with PC tools, or transfer to another Switch 1 or an emulator. For workflows like the ones in our game save guides, files are not a detail; they are the entire point.
That control is also why the save data types matter to JKSV users: you are handling the real data, including Device saves such as an Animal Crossing island, on your own responsibility.
Which do you need?
If you play on an unmodified console and just want mainstream games backed up with zero effort, NSO cloud saves do that job inside Nintendo’s rules. If you want files you control, coverage for whatever is on the console, editing and transfer workflows, or protection that survives a lapsed subscription, JKSV is the tool — on a modded Switch 1. Many Switch 1 owners sensibly run both: NSO for frictionless day-to-day cover on supported games, JKSV for the complete, portable archive.
See how JKSV’s own cloud options compare in the cloud backup hub, and the broader manager shortlist in best Switch save managers. The services are complements far more than they are rivals.
There is also a portability angle that only becomes visible years later. Saves held as your own files can outlive services, subscriptions and even consoles: a folder of JKSV backups copied to a PC today can still be restored to a Switch 1, or carried into an emulator setup, long after account-based arrangements have changed around you. That long view — your progress as files you possess, not entries in someone else’s database — is the philosophical core of local save management, and the reason tools like JKSV exist alongside the official service rather than underneath it.