Odoo
93 · HealthyModular business suite whose community edition includes CRM, sales, invoicing and inventory.
Open source alternatives to Zoho CRM
4 open source projects replace Zoho CRM, ranked by how safe each is to depend on.
ERPNext
86 · HealthyFull ERP suite covering accounting, inventory, sales, purchasing and HR, with a CRM module for leads and opportunities.
SuiteCRM
84 · HealthyEnterprise CRM descended from SugarCRM Community Edition, covering sales, marketing and service.
EspoCRM
71 · StableWeb CRM for leads, accounts, opportunities and email, with a customizable entity model.
At a glance
Health and license are separate verdicts: a project can be well maintained and still not be open source.
| Project | Health | License | Stars |
|---|---|---|---|
| Odoo | 93 · Healthy | Free, share changesLGPL-3.0 | 55k |
| ERPNext | 86 · Healthy | Free, share changesGPL-3.0 | 40k |
| SuiteCRM | 84 · Healthy | Free, share hosted changesAGPL-3.0 | 5.8k |
| EspoCRM | 71 · Stable | Free, share hosted changesAGPL-3.0Relicensed 2023 | 3.5k |
More in CRM
Zoho CRM is a paid CRM product. See all open source CRM tools, ranked the same way.
Scores last refreshed from GitHub on 9 October 2026. How we score.