head to head · open source
EspoCRM vs oms-erp
EspoCRM has 3,368 GitHub stars, 972 forks, 69 open issues and last shipped yesterday. oms-erp has 1,927 stars, 358 forks, 1 open issues and last shipped 9 months ago. EspoCRM leads on adoption by 75% (3,368 vs 1,927 stars). EspoCRM is written in PHP under AGPL-3.0; oms-erp is written in Java under Apache-2.0. EspoCRM has attracted 29% as many forks as stars, oms-erp 19%. EspoCRM was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (crm), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| EspoCRM | oms-erp | |
|---|---|---|
| GitHub stars | ★ 3.4K | ★ 1.9K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | PHP | Java |
| Last push | 2026-09-17 | 2025-12-24 |
| Forks | ⑂ 972 | ⑂ 358 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick EspoCRM if
- You weight community size — 3.4K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches PHP
- You value the larger contributor base for long-term maintenance
pick oms-erp if
- You want the oms-erp feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and oms-erp fits your workflow better
About EspoCRM
EspoCRM is a free, open source customer relationship management application written in PHP. It lives in the open source business software ecosystem for CRM and sales systems, and it combines a single page frontend with a REST API backend. The project describes itself as a platform for storing, organizing, and managing leads, contacts, sales opportunities, marketing campaigns, support cases, and related business information.
read the full EspoCRM overview →
About oms-erp
oms erp is an Apache 2.0 licensed Java project in the Spring Cloud, Kubernetes, and business software ecosystem. It describes itself as a one stop omnichannel business middle platform system with OMS/e commerce ERP, unified inventory WMS, and SAP financial management components. The repository is categorized as Business Software / CRM & Sales, with topics including CRM, ERP, TMS, WMS, Nacos, and omni channel.
read the full oms-erp overview →
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Frequently asked questions
Is EspoCRM or oms-erp more popular?
EspoCRM has 3,368 GitHub stars and oms-erp has 1,927. EspoCRM has the larger community by that measure.
Are EspoCRM and oms-erp free?
Both are open source. EspoCRM is licensed under AGPL-3.0 and oms-erp under Apache-2.0. Neither carries a licence fee.
What is the difference between EspoCRM and oms-erp?
EspoCRM is written in PHP and oms-erp in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, EspoCRM or oms-erp?
Choose EspoCRM if you want the larger community (3,368 stars) or its AGPL-3.0 licence terms. Choose oms-erp if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.