Should You Self-Host Software? The Real Cost Calculation
Last updated March 2026 · 15 min read
Self-hosting sounds attractive: zero vendor fees, full data control, no pricing surprises. But the true cost includes server hosting, maintenance time, security updates, backups, and the opportunity cost of your time. Sometimes cloud is actually cheaper.
This guide compares the real cost of self-hosting vs cloud for the three most commonly self-hosted SaaS tools: n8n (automation), Ghost (publishing), and Supabase (database/backend).
n8n: Self-Hosted vs Cloud
| Cost Component | Self-Hosted | n8n Cloud Starter ($20/mo) | n8n Cloud Pro ($50/mo) |
|---|---|---|---|
| Software license | $0 (fair-code, community edition) | Included | Included |
| Server hosting | $5–$20/mo (VPS like Hetzner, DigitalOcean) | Included | Included |
| Execution limits | Unlimited | 2,500 executions/mo | 10,000 executions/mo |
| Maintenance time | 2–4 hrs/month (updates, monitoring, debugging) | 0 hours | 0 hours |
| Time cost (@$50/hr) | $100–$200/mo | $0 | $0 |
| Total real cost/month | $105–$220/mo | $20/mo | $50/mo |
| Annual real cost | $1,260–$2,640/yr | $240/yr | $600/yr |
When n8n self-hosting makes sense:Only when your time cost is near $0 (you enjoy the sysadmin work), you need unlimited executions, or data sovereignty is a hard requirement. If you value your time at $50+/hour, n8n Cloud at $20–$50/month is almost always cheaper than self-hosting.
Ghost: Self-Hosted vs Ghost(Pro)
| Cost Component | Self-Hosted | Ghost(Pro) Starter ($18/mo) | Ghost(Pro) Publisher ($35/mo) |
|---|---|---|---|
| Software | $0 (open source) | Included | Included |
| Server | $10–$30/mo (needs more RAM than n8n) | Included | Included |
| Email delivery (Mailgun/SES) | $0.80/1,000 emails (Mailgun) | Included | Included |
| Member limits | Unlimited | 1,000 members, 1 staff user | Unlimited members, 3 staff |
| Maintenance | 3–5 hrs/month (updates, SSL, email config, backups) | 0 hours | 0 hours |
| Time cost (@$50/hr) | $150–$250/mo | $0 | $0 |
| Total real cost/month | $160–$280/mo | $18/mo | $35/mo |
When Ghost self-hosting makes sense: When you have 5,000+ members (Ghost Pro Business jumps to $239/month at that scale), need full theme customization, or your developer is already managing servers. For most publishers under 5,000 members, Ghost(Pro) Publisher at $35/month is dramatically cheaper than self-hosting when you account for time.
Supabase: Self-Hosted vs Cloud
| Cost Component | Self-Hosted | Supabase Free | Supabase Pro ($25/mo) |
|---|---|---|---|
| Software | $0 (open source) | Included | Included |
| Server | $20–$80/mo (PostgreSQL needs decent specs) | Included | Included ($10 compute credits) |
| Database limits | Limited by server specs | 500MB, 2 projects, pauses after 7 days | 8GB, no pausing |
| Maintenance | 4–8 hrs/month (PostgreSQL tuning, backups, security patches) | 0 hours | 0 hours |
| Time cost (@$50/hr) | $200–$400/mo | $0 | $0 |
| Total real cost/month | $220–$480/mo | $0 (with 7-day pause risk) | $25/mo |
When Supabase self-hosting makes sense:When you need more than 8GB database storage (Pro plan), have compliance requirements demanding full data control, or already have a DevOps team managing PostgreSQL. Supabase Team at $599/month is where self-hosting starts to show real dollar savings — but only if your team already has the expertise.
The Self-Hosting Decision Framework
Self-host when ALL of these are true:
- You (or your team) already manage servers regularly
- Your time cost for maintenance is low (under $25/hour effective rate)
- Data sovereignty is a hard business or regulatory requirement
- You've exceeded the cloud vendor's mid-tier pricing (making cloud expensive)
- You're comfortable with emergency troubleshooting at 2 AM
Stay on cloud when ANY of these are true:
- Your time is worth $50+/hour and you'd rather spend it on your core business
- You're a solo founder or small team without DevOps capacity
- The cloud tier pricing fits your budget (most tools under $50/month)
- You need guaranteed uptime without managing it yourself
- You value not thinking about SSL certificates, backups, and security patches
The Hidden Costs Nobody Mentions
- Initial setup time. Budget 8–20 hours for first-time setup (Docker, reverse proxy, SSL, email delivery, backups). That's $400–$1,000 in time at $50/hour before the tool serves a single request.
- Downtime cost. When your self-hosted n8n goes down at 3 AM, automations stop running until you fix it. Cloud services have teams on-call 24/7.
- Security responsibility. You own security patches, firewall rules, and SSL renewal. One missed update can expose your data.
- Backup testing. Having backups is meaningless unless you regularly test restoring from them. Add 1–2 hours/month for backup verification.
- Scaling complexity. When your self-hosted Supabase runs out of RAM at 50,000 users, the migration to a bigger server is your problem.
Frequently Asked Questions
Is self-hosting actually cheaper?
In raw server costs, yes. A $10/month VPS is cheaper than a $50/month SaaS subscription. But when you include 2–8 hours of monthly maintenance time at $50/hour, cloud is almost always cheaper for individuals and small teams. Self-hosting becomes cost-effective at scale (5+ team members) or when cloud pricing exceeds $200–$500/month.
What's the easiest tool to self-host?
n8n. It runs in a single Docker container, has excellent documentation, and requires minimal server resources ($5–$10/month VPS). Ghost is next-easiest but requires configuring email delivery separately. Supabase is the hardest due to multiple services (PostgreSQL, Auth, Storage, Edge Functions).
Can I self-host and then move to cloud later?
Yes, all three tools support migration between self-hosted and cloud. n8n workflows export as JSON. Ghost has full JSON export. Supabase is PostgreSQL, so standard pg_dump works. The migration isn't painless but it's possible.
What about Cal.com self-hosting?
Cal.com is another popular self-hosted option. The cloud version is free for 1 user with unlimited event types and bookings. Self-hosting makes sense primarily for teams wanting to avoid $15/seat/month (Team plan) or organizations with data sovereignty requirements.
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