Side by side
AcyMailing vs OpenEMM
Both stand on email marketing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Self-hostedWeb
AcyMailing combines newsletter creation, automation, audience tools, analytics, and sending support for WordPress and Joomla. Its free plans provide 500 emails per month, while some operational features remain limited per license.
Visit AcyMailing Free plan Open source APILinuxMac+3
Choose OpenEMM if you want a free, self-hosted email marketing system with automation, segmentation, and uncapped recipients and dispatches. Consider another option if you need a demo that can send campaigns or do not have the server access and resources required for installation.
Visit OpenEMMThe facts
| AcyMailing | OpenEMM | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | Self-hosted, Web | API, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 3 | 1 |
| Maker | AcyMailing | OpenEMM |
| Website | acymailing.com | agnitas.de |
| On email marketing software | #6 of 187 | #2 of 187 |
AcyMailing: what it does well
- Drag-and-drop editor supports reusable content blocks
- Includes automation, segmentation, and A/B testing
- Tracks clicks with heat maps
- Works with WordPress and Joomla
- Free plans allow 500 emails monthly
What to know first
- Several license services are limited to one website
- Requires PHP 7.4 or newer
- Spam testing is limited without the multisite pack
- 14-day trial includes 500 free emails
OpenEMM: what it does well
- Free plan has no recipient, mailing-list, or dispatch limits.
- Includes email automation, segmentation, landing pages, and A/B testing.
- Offers Make and n8n integrations, plus web services and import/export.
- Self-hosting lets users choose their operating environment.
- Source code is available for inspection and customization.
What to know first
- Installation requires SSH shell access with root rights.
- The maker lists at least 4 GB of server RAM.
- The three-day demo account cannot send mailings.
- Paid support and setup services are offered separately.
Alternatives to AcyMailing Alternatives to OpenEMM The whole list

