Who this guide is for
Small businesses, nonprofit teams, consultants, and developers evaluating adaptable CRM platforms.
How we selected these projects
Projects were selected for direct CRM relevance, public source availability, documentation, and observable repository metadata.
GitHub stars are useful popularity signals, but they are not guarantees of quality, security, maintenance, or suitability.
| Repository | Stars | Forks | Language | License | Updated |
|---|---|---|---|---|---|
| twentyhq/twenty | 52.9K | 8K | TypeScript | NOASSERTION | 7/14/2026 |
| frappe/erpnext | 36.8K | 12.1K | Python | GPL-3.0 | 7/14/2026 |
| espocrm/espocrm | 3.1K | 898 | PHP | AGPL-3.0 | 7/14/2026 |
| SuiteCRM/SuiteCRM-Core | 269 | 199 | PHP | AGPL-3.0 | 7/14/2026 |
| monicahq/monica | 24.9K | 2.6K | PHP | AGPL-3.0 | 7/14/2026 |
twentyhq /
twenty
The open alternative to Salesforce, designed for AI.
frappe /
erpnext
Free and Open Source Enterprise Resource Planning (ERP)
espocrm /
espocrm
EspoCRM – Open Source CRM Application
SuiteCRM /
SuiteCRM-Core
SuiteCRM - Open source CRM for the world
monicahq /
monica
Personal CRM. Remember everything about your friends, family and business relationships.
Key considerations
- Map required workflows and data retention before comparing interfaces.
- Test import, export, permissions, backups, and integrations.
- Understand which features or support options are outside the repository.
Limitations
- This guide does not score usability or implementation effort.
- CRM suitability depends heavily on organization-specific processes.
This guide is informational, uses changeable public GitHub data, and is not a security audit, legal opinion, or endorsement. Always review the repository, license, dependencies, and current documentation yourself.
Frequently asked questions
What makes an open-source CRM project worth evaluating?
Start with fit for your use case, then review the license, documentation, release history, issue tracker, security guidance, and the maintainers’ stated support model.
Do more GitHub stars mean a project is better?
No. Stars are a useful popularity signal, but they do not guarantee quality, security, maintenance, performance, or suitability.
Is every listed project safe for production?
No independent directory can make that guarantee. Review the source, dependencies, advisories, deployment model, and license before adoption.