
openCRX
Mature enterprise CRM with calendar, email integration and REST API
Overview
openCRX is a Java-based enterprise CRM platform that has been actively maintained for over 20 years. It covers contact and account management, opportunity tracking, activity and calendar management, e-mail integration, and exposes both REST and SOAP APIs. It runs on standard Java EE application servers such as WildFly and TomEE.
Where it falls short of Salesforce
- Deployment requires a Java EE application server and significant manual configuration
- UI is dated and considerably less intuitive than modern CRM tools
- Small community; limited third-party plugin and integration ecosystem
We list the gaps honestly so you can decide if the trade-off is worth owning your data.
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