Open-source alternatives to Salesforce
Looking to replace Salesforce with something free and open-source? These 3 tools are the best open alternatives in 2026 — most are self-hostable, so you keep full control of your data and pay no subscription.
At a glance: how they compare
Click a column to sort — the best one depends on what matters to you.
| Alternative | Stars | Language | License | Last commit | In one line |
|---|---|---|---|---|---|
| Twenty | — | — | AGPL-3.0 | — | Modern open-source CRM, a Salesforce alternative. |
| Odoo | — | — | LGPL-3.0 | — | All-in-one business apps: CRM, sales, inventory and more. |
| ERPNext | — | — | GPL-3.0 | — | Full open-source ERP with CRM, accounting and HR. |
Which one should you pick?
Twenty
Modern open-source CRM, a Salesforce alternative. Its AGPL-3.0 license keeps the project and its forks open-source forever, and commercial use is allowed. Because it is self-hostable, your data can stay entirely on your own infrastructure.
Odoo
All-in-one business apps: CRM, sales, inventory and more. Its LGPL-3.0 license keeps the project and its forks open-source forever, and commercial use is allowed. Because it is self-hostable, your data can stay entirely on your own infrastructure.
ERPNext
Full open-source ERP with CRM, accounting and HR. Its GPL-3.0 license keeps the project and its forks open-source forever, and commercial use is allowed. Because it is self-hostable, your data can stay entirely on your own infrastructure.
Switching from Salesforce without the drama
- Export your data from Salesforce first — most tools above can import standard formats.
- Run your top pick in parallel for a week or two before committing; self-hosted options can be tried locally in minutes.
- Migrate one team or one project at a time, keeping the old account read-only until everything checks out.
FAQ
What is the best open-source alternative to Salesforce?
The top open-source alternative is Twenty — Modern open-source CRM, a Salesforce alternative. The full ranked list is above.
Are these Salesforce alternatives free?
Yes. Every tool listed is open-source and free to use; most can be self-hosted so you keep full control of your data.
Can I self-host an alternative to Salesforce?
Most of these tools are designed to run on your own server or machine, giving you privacy and no subscription fees.
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