For Technical Teams
Build your own stack.
Own your data. Pay hosting, not licensing.
If your org has a developer — or you're comfortable with a VPS and Docker — open-source tools can replace most of your SaaS subscriptions for $40–170/month in hosting vs. $500–2,000 in software fees.
You're in the right place if: you have a developer on staff or board, you're comfortable with DigitalOcean/Railway/Render, or you want full data ownership of donor records, supporter lists, and ministry data. If that's not you — the quiz recommends hosted tools that require no technical setup.
Recommended stacks by org size
Start with less than you think you need. Every tool added is maintenance burden — pick the lightest stack that covers your real needs.
NocoBase handles your member directory and giving log. Listmonk sends the newsletter. Cal.com books pastoral meetings.
Twenty for CRM. n8n connects everything. Chatwoot handles inbound messages. Metabase for giving dashboards.
ERPNext covers CRM, accounting, HR, and projects in one. Higher complexity but fully integrated and complete.
Top tools to know
These are the highest-signal picks from Mission Commons' 127-tool directory, filtered for nonprofit relevance and active maintenance.
| Tool | Category | GitHub Stars | Replaces |
|---|---|---|---|
| Twenty | CRM | ★ 39k | Salesforce |
| AppFlowy | Knowledge / Docs | ★ 68k | Notion |
| Plane | Project Management | ★ 45k | Linear / Jira |
| Cal.com | Scheduling | ★ 33k | Calendly |
| ERPNext | ERP / Accounting | ★ 31k | QuickBooks |
| n8n | Automation | ★ 55k | Zapier |
| Listmonk | Email / Newsletter | ★ 18k | Mailchimp |
| Chatwoot | Support / Messaging | ★ 21k | Intercom |
| NocoBase | No-Code Platform | ★ 21k | Airtable |
| Metabase | Analytics / Dashboards | ★ 38k | Tableau / Looker |
What you're currently paying vs. open-source equivalent
| You pay for | Replace with | You save | |
|---|---|---|---|
| Salesforce | → | Twenty | $150+/user/mo |
| Mailchimp | → | Listmonk | $100+/mo |
| Calendly | → | Cal.com | $15/user/mo |
| Monday.com | → | Plane | $40/user/mo |
| Notion | → | AppFlowy | $10/user/mo |
| Intercom | → | Chatwoot | $74+/mo |
| Zapier | → | n8n | $50+/mo |
| Airtable | → | NocoBase | $20/user/mo |
| QuickBooks | → | ERPNext | $80+/mo |
How to get started
Audit what you're paying for
List every SaaS subscription, the monthly cost, what it does, and any pain points. This becomes your migration priority list.
Pick a hosting provider
DigitalOcean, Railway, or Render all work well. Budget $40–80/month for a VPS that can run several containers. Railway is easiest for non-DevOps developers.
Deploy your foundation first
Start with just NocoBase (for small orgs) or Twenty (for mid-size). Get one tool running and used before adding more.
Add n8n as your integration layer
Once your foundation is stable, n8n connects it to the rest — donation alerts, email welcome series, giving receipts. This is where self-hosting starts to compound.
Migrate one SaaS tool at a time
Start with the most expensive or most painful. Run old and new in parallel for a month before fully cutting over. Never migrate everything at once.
See the full 127-tool directory
Mission Commons is our sister directory — 127 open-source tools with stack guides for orgs of every size.
Not technical? No problem. The Nonprofit Tool Finder quiz recommends hosted tools that require zero setup — free tiers on Google Workspace, Mailchimp, Zeffy, and HubSpot that most small nonprofits can be running in a week.