How Much Can You Save by Switching to Open Source? A 2026 Cost Breakdown
ToolAlts Team
The average company spends $5,800 per employee per year on SaaS subscriptions. For a 50-person company, that's $290,000 annually — often for tools that have free, open-source alternatives with comparable features.
We calculated the real cost of replacing the 10 most popular SaaS categories with open source alternatives. The results are striking.
The SaaS Cost Problem
SaaS pricing has escalated dramatically. Slack Pro costs $8.75/user/month. Notion Plus is $10/user/month. GitHub Team is $4/user/month. These individual prices seem reasonable, but they compound:
- 50 users on Slack Pro: $5,250/year
- 50 users on Notion Plus: $6,000/year
- 50 users on GitHub Team: $2,400/year
That's $13,650/year for just three tools. Add project management, design, analytics, scheduling, and communication, and you're easily past $50,000/year.
The Open Source Alternative Stack
Here's what a complete open source stack looks like in 2026, with real pricing:
Communication
| SaaS Tool | SaaS Cost (50 users/year) | Open Source Alternative | Self-Hosted Cost |
|---|---|---|---|
| Slack Pro | $5,250 | Rocket.Chat | $0 |
| Microsoft Teams Business | $7,500 | Mattermost | $0 |
| Zoom Business | $9,000 | Jitsi Meet | $0 |
Productivity and Knowledge
| SaaS Tool | SaaS Cost (50 users/year) | Open Source Alternative | Self-Hosted Cost |
|---|---|---|---|
| Notion Plus | $6,000 | Outline | $0 |
| Confluence | $6,000 | BookStack | $0 |
| Google Workspace | $4,200 | Nextcloud | $0 |
Development
| SaaS Tool | SaaS Cost (50 users/year) | Open Source Alternative | Self-Hosted Cost |
|---|---|---|---|
| GitHub Team | $2,400 | Gitea | $0 |
| GitLab Premium | $35,400 | GitLab CE | $0 |
| Vercel Pro | $3,000 | Coolify | $0 |
Project Management
| SaaS Tool | SaaS Cost (50 users/year) | Open Source Alternative | Self-Hosted Cost |
|---|---|---|---|
| Linear Standard | $4,200 | Plane | $0 |
| Jira Standard | $5,400 | Focalboard | $0 |
| Asana Premium | $7,800 | Wekan | $0 |
Design
| SaaS Tool | SaaS Cost (50 users/year) | Open Source Alternative | Self-Hosted Cost |
|---|---|---|---|
| Figma Professional | $10,800 | Penpot | $0 |
| Miro Business | $14,400 | Excalidraw | $0 |
Analytics and Marketing
| SaaS Tool | SaaS Cost (50 users/year) | Open Source Alternative | Self-Hosted Cost |
|---|---|---|---|
| Google Analytics 360 | $50,000+ | Plausible | $0 |
| Mailchimp Standard | $1,200 | Listmonk | $0 |
| Calendly Teams | $1,800 | Cal.com | $0 |
Total Savings
| Category | SaaS Stack (Annual) | Open Source Stack (Annual) |
|---|---|---|
| Communication | $21,750 | $0 |
| Productivity | $16,200 | $0 |
| Development | $40,800 | $0 |
| Project Management | $17,400 | $0 |
| Design | $25,200 | $0 |
| Analytics/Marketing | $53,000 | $0 |
| Total | $174,350 | ~$1,200 (VPS) |
Annual savings: $173,150 for a 50-person team.
Even for a 10-person startup, the savings are significant:
| Category | SaaS (10 users/year) | Open Source |
|---|---|---|
| Communication (Slack) | $1,050 | $0 |
| Productivity (Notion) | $1,200 | $0 |
| Development (GitHub) | $480 | $0 |
| Project Management (Linear) | $840 | $0 |
| Design (Figma) | $2,160 | $0 |
| Total | $5,730 | ~$300 (VPS) |
The Hidden Costs of Self-Hosting
Open source software is free, but self-hosting isn't entirely free. Here are the real costs:
Server Costs
A basic VPS (4 vCPU, 8GB RAM) costs $20-40/month and can run most self-hosted tools. For heavier workloads, $50-100/month covers a 50-person team's entire stack.
Setup Time
Initial setup takes 1-2 days for a complete stack using Docker Compose. One-time cost.
Maintenance
Updating Docker images, monitoring, and backups take 2-4 hours per month. For a 50-person team, this is typically handled by one DevOps engineer as part of their existing responsibilities.
Downtime Risk
Self-hosted tools can go down. Mitigation: use a VPS provider with 99.99% uptime SLA, set up monitoring, and maintain backups.
Total Realistic Cost
For a 50-person team:
- VPS hosting: $600-1,200/year
- Setup time: ~$500 (one-time, if you value your time at $50/hour)
- Maintenance: ~$1,200/year (4 hours/month at $25/hour)
- Total: ~$2,400/year
Net savings vs SaaS: $171,950/year
When NOT to Self-Host
Self-hosting isn't always the right choice. Consider staying with SaaS when:
- You have zero DevOps skills: Self-hosting requires basic server management knowledge
- Uptime is mission-critical: If 5 minutes of downtime costs $10,000, pay for SaaS SLAs
- Your team is under 5 people: The cost savings may not justify the setup effort
- Compliance requires third-party hosting: Some regulations mandate specific hosting arrangements
- The tool has no good open source alternative: Some categories (like advanced BI/reporting) still lack strong OSS options
How to Start Saving
- Audit your SaaS spend: List every tool, every user, every dollar. You'll be surprised where the money goes.
- Pick the biggest line item: Communication tools (Slack/Teams) are usually the largest expense. Start there.
- Pilot with one team: Run the open source alternative alongside SaaS for 30 days. Compare the experience.
- Migrate gradually: Don't switch everything at once. Move one tool per month.
- Use Docker: Every tool listed here has a Docker image.
docker compose upand you're running.
Find Alternatives for Every Tool
Browse our database of 50+ tools with pricing, features, and alternatives:
- All categories — Find alternatives for any tool
- Communication tools — Replace Slack, Teams, Zoom
- Development tools — Replace GitHub, GitLab, Vercel
- Productivity tools — Replace Notion, Confluence, Airtable
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