Free & open source
Do you know what
technology your
organisation
actually uses?
Most don’t. Stackmap helps charities, social enterprises, and councils build a clear picture of their tech — systems, costs, risks, and who’s responsible — in about an hour. No consultants needed.
54%
of councils already document their architecture — but use spreadsheets. They’re limiting, hard to share, and impossible to aggregate. The same is true across the charity and voluntary sector, often worse.
GDS Local “Sourcing the Stack” initiative
One afternoon. One clear map.
Name what you do
Pick from common functions — finance, fundraising, service delivery — or describe your own services. We give you a starting point so you’re never staring at a blank page.
Map your tools
For each area, tell us what software you use. We suggest common tools based on your organisation type and size, complete with estimated costs. Spreadsheets and manual processes count too.
See the full picture
Get a diagram of your architecture, a cost breakdown, and — if you choose — a risk assessment of your technology dependencies. Export everything to share with your board or funders.
Not another enterprise tool
Commercial architecture tools cost thousands, require training, and are designed for organisations with dedicated architects. Stackmap is designed for a single person with operational knowledge to complete in an afternoon.
- No account required — works entirely in your browser
- Plain language throughout — no TOGAF, no ArchiMate
- Captures reality — including “Sarah exports it on Tuesdays”
Built for
- Small charities with no IT team
- Social enterprises managing growth
- Councils planning LGR transitions
- Co-ops and community organisations
- Anyone who thinks “we should probably document this”
You probably already know more than you think.
If you can name the software your organisation uses, you can map your architecture. Stackmap turns that knowledge into something you can share, analyse, and act on.
Start mapping