Download Mirth Connect
All versions of Mirth® Connect for Windows, Linux and Mac from their official links from NextGen® Healthcare.

Mirth Connect by NextGen Healthcare is an open-source healthcare integration engine that facilitates easy, fast, and scalable interoperability among various systems. It allows for the integration of messaging across different systems, offering a suite of tools for developing, deploying, and monitoring various connection interfaces both easily and intuitively. Mirth Connect is great filtering and transforming messages between diverse protocols and standards and allows integrating systems that do not conform to standard messaging.
As a mature, reliable, and extensively used application, Mirth Connect is perfect for managing substantial, corporate-level projects. It is a robust system equipped with a wide range of powerful and versatile tools, that make it an ideal solution for any healthcare interoperability challenge.
Mirth Connect changed to a propietary license model from version 4.6.0 and it is not open-source anymore. Open Integration Engine (OIE) is a fully compatible, open-source fork of Mirth, you can find it on our Open Integration Engine download page.
Download Mirth Connect 4.6
License change from Mirth Connect 4.6
In March 2025, NextGen Healthcare announced an important change in the Mirth Connect licensing model. From Mirth Connect 4.6 onward, the license will become a closed-source proprietary license, and thus Mirth Connect will not be publicly available nor free. If you want to purchase Mirth Connect 4.6 or newer, please contact NextGen Healthcare directly.
For complete details, please refer to our article about the Mirth Connect license change.
Open Integration Engine (OIE) is an open-source fork of Mirth Connect, you can easily migrate from Mirth Connect to OIE. Download Open Integration Engine to get started.
Do you want to learn more? Contact us.
Download Mirth Connect 4.5
Previous versions of Mirth Connect 4.5
Download Mirth Connect 4.4
The latest version of Mirth Connect 4.4 is Mirth Connect 4.4.2 that was released on 6 November 2023.
Previous versions of Mirth Connect 4.4
Critical Vulnerability in Mirth Connect: CVE-2023-43208
A significant vulnerability, identified as CVE-2023-43208, has been discovered in Mirth Connect. This vulnerability allows for remote, unauthenticated execution of arbitrary code.
All versions of Mirth Connect before version 4.4.1 are affected by this security flaw.
While the risk is notably lower for Mirth Connect instances that are not accessible from the Internet (which is the recommended configuration), it is still advisable to avoid using versions older than 4.4.1. We strongly recommend upgrading to version 4.4.1 or later as soon as possible to mitigate this vulnerability.
Download previous releases of Mirth Connect
The following versions of Mirth Connect are deprecated and, for security reasons, we do not recommend their use in production environments. They are listed for reference and archival purposes and only the most recent update of each one is included.
- Download Mirth Connect 4.3.0
- Download Mirth Connect 4.2.0
- Download Mirth Connect 4.1.1
- Download Mirth Connect 4.0.1
- Download Mirth Connect 3.12.0
- Download Mirth Connect 3.11.0
- Download Mirth Connect 3.10.1
- Download Mirth Connect 3.9.1
- Download Mirth Connect 3.8.1
- Download Mirth Connect 3.7.1
- Download Mirth Connect 3.6.2
- Download Mirth Connect 3.5.2
- Download Mirth Connect 3.4.2
- Download Mirth Connect 3.3.2
- Download Mirth Connect 3.1.1
- Download Mirth Connect 3.0.3
- Download older versions from the archive
All versions of Mirth Connect and other downloads can be found in Mirth Connect archived downloads page.
Download Open Integration Engine
Open Integration Engine (OIE) is a fully compatible, open-source fork of Mirth Connect. Find all the official releases on our Open Integration Engine download page.
Download Administrator Launcher for Mirth Connect
Mirth Connect Administrator Launcher is a tool that allows the management to multiple Mirth Connect from a single place. You can get it from our Administrator Launcher download page.
Mirth®, NextGen® and their respective logos are registered trademarks of NXGN Management, LLC.
Meditecs (Caduceus Software SL) is not affiliated with NXGN Management, LLC. in any way.
