NMSE (No Man's Save Editor)

Free#4 of 26 in Game Save Editors

Free, open-source desktop save editor for No Man's Sky.

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NMSE (No Man's Save Editor)— Visit NMSE

At a glance

Editor score
Not yet scored
Pricing
Free plan
Best for
Cross-platform No Man’s Sky editing
Free plan
Yes
Paid from
None
Supported platforms
Steam, GOG, Xbox Game Pass, PlayStation 4, Nintendo Switch
Facts checked
20 Sep 2026

Where it wins
- Edits inventories, progression, stats, bases, vehicles, fleets, and more
- Supports Steam, GOG, Xbox Game Pass, PlayStation 4, and Nintendo Switch
- Includes backups, restoration, JSON editing, imports, and exports
Where it doesn't
- Linux and macOS packages run through Wine rather than native ports
- Focused exclusively on No Man’s Sky save data
- Raw JSON editing requires care with underlying save structures

Our verdict on NMSE (No Man's Save Editor)

NMSE (No Man's Save Editor) is a free, open-source desktop application for editing No Man’s Sky save files. It is aimed at players who want direct control over progression, inventories, discoveries, bases, vehicles, fleets, recipes, and other game data without limiting edits to a single save area. The editor supports saves from Steam, GOG, Xbox Game Pass, PlayStation 4, and Nintendo Switch, making it suitable for players across five gaming platforms.

The pricing model is straightforward: NMSE is free and ad-free, with no paid tiers described. Its ecosystem coverage is broader than its desktop operating-system list might suggest. Windows builds are provided, while Linux and macOS users can run AppImage and DMG packages through Wine. The interface supports 16 languages, and import and export tools cover save data, outfits, configurations, and other editor data. That combination gives the product useful reach across different game platforms and desktop environments, though Linux and macOS users should expect a Wine-based setup rather than a native port.

Its standout strength is breadth. NMSE can edit player health, currencies, milestones, discoveries, words, glyphs, inventories, item values, starships, multitools, exocraft, companions, frigates, squadrons, bases, settlements, missions, space stations, and points of interest. A recipe browser adds crafting trees and database search, while a raw JSON tree viewer and editor offers deeper control. Backup selection and restoration tools provide a practical safeguard around save changes. NMSE is a strong fit for players seeking extensive No Man’s Sky save control; users who need a native Linux or macOS application, or an editor for other games, should choose a different tool.

NMSE (No Man's Save Editor) pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on nmse.vectorcmdr.xyz

NMSE (No Man's Save Editor) fact sheet

Free plan	Yes
Paid from	None
Supported platforms	Steam, GOG, Xbox Game Pass, PlayStation 4, Nintendo Switch
Supported games	No Man's Sky
Inventory editing	Yes
Progression editing	Yes
Character stats editing	Yes
Automatic backup	Not verified
Deployment	Desktop
Platforms	Windows, Linux, macOS
Support	Community, Docs
Built for	Solo, Small business (editorial estimate)
Pricing	Free plan
Website	nmse.vectorcmdr.xyz
Facts checked	20 Sep 2026

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used NMSE (No Man's Save Editor) for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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