What it is
NMSCD (No Man's Sky Community Database, per the branding) is a community-tools portal created and maintained by the AssistantNMS team — the same group behind the most popular companion app for the game. The premise: many useful NMS tools are small individual projects living in isolation on GitHub or personal sites. NMSCD indexes, hosts or links to them and puts them under a common domain.
Today it contains 30+ categorized tools: generators (build markup for wiki pages), calculators (refining output conversions, stack-size optimization), base helpers (layout planning), data viewers, and glyph/coordinate converters between formats.
Open source under the AssistantNMS org on GitHub. Maintained by 40+ volunteers. Fully free, no ads.
What problem it solves
Before NMSCD, NMS community tools lived scattered: a glyph converter in a gist, a calculator in a Tumblr, a wiki-page generator in an abandoned repo. Finding them required googling and luck; using them required trusting unknown sites.
NMSCD centralizes everything under the same team that built Assistant — that is, with some quality stamp — and gives individual tools a common home with consistent UI.
Differentiation
Versus Assistant for No Man's Sky: Assistant is the main companion app — recipes, refining, live events. NMSCD is the complementary catalog of more niche tools. Overlap is small: NMSCD has tools Assistant doesn't (generators, niche calculators), while Assistant has the integrated database NMSCD doesn't replicate.
Versus searching GitHub or forums directly: NMSCD is more curated and consistent. Quality varies but the initial filter is done.
What people use it for
Wiki generators: if you're documenting a planet, ship or multi-tool on the Fandom Wiki, NMSCD has generators that build the infobox markup automatically from the fields you type.
Crafting calculators: how much Activated Indium do I produce with X Indium, Y Carbon, in Z stacks? There are dedicated calculators.
Coordinate converters: NMS uses several coordinate systems (glyphs, voxel coords, decimal coords). NMSCD has converters between them all.
Base layout planning: tools that let you plan bases without going into the game — useful for conceptualizing before building.
Collaborative tracking: tools for keeping cross-save inventories, discovery lists, per-expedition progress trackers.
Who this isn't for
If you just started NMS, NMSCD is noise — use Assistant first. NMSCD is for specific cases.
If you only want quick answers on your phone mid-session, NMSCD tools are usually web-only (no native app). For mobile fluidity, Assistant is better.
If you play fully offline, irrelevant — all tools need a connection.
How it's actually used
- Go to nmscd.com and look at the main catalog: each tool has a tile with name, short description and icon.
- Click whichever you need. Each tool is its own page with its own UI.
- Some tools require input (type something, paste coordinates, pick items); others are read-only exploration.
- Share output (link, copy/paste to the wiki, export JSON, etc.) per the tool's flow.
- Most tools don't need a login — they're stateless utilities.
Honest limitations
Heterogeneous quality. Although NMSCD goes through the AssistantNMS team's filter, individual tools were contributed by different volunteers. Some are excellent, others are basic or slightly abandoned.
Niche. If your use case doesn't fit one of the 30+ tools, NMSCD doesn't help. Coverage is good but not exhaustive.
Web-only. No native app. Everything lives in the browser.
Primary language: English. Even though the AssistantNMS ecosystem is multilingual, many NMSCD tools have UI only in English.
Discoverability inside the portal. The home has a grid, but finding exactly the tool you want takes browsing — there's no strong search.
Dependence on the core team. Like Assistant, it depends on Kurt Lourens and volunteers. If they pause, NMSCD slows down.
How to start
Go to nmscd.com and scroll the full catalog once to build a mental map of what's there. No need to memorize — just knowing that a "calculators" category exists reminds you to come back when you need one.
Bookmark it. When you're in a situation Assistant doesn't cover (e.g. generating markup for a Fandom page), open NMSCD and search.
If you bump into a useful tool that isn't in NMSCD, consider contributing — the AssistantNMS repo accepts PRs and often integrates third-party tools with author permission.