Cloud & Middleware
Redox vs Mirth Connect
Redox and Mirth Connect both help you integrate with healthcare systems, but they sit at opposite ends of the build-versus-buy spectrum for integration infrastructure. Redox is a managed, cloud integration platform that connects you to many EHRs through one API; Mirth Connect (NextGen Connect) is a self-hosted, open-source interface engine you run and operate yourself. This comparison weighs Redox vs Mirth on control, cost, scale, and operational burden to help you pick the right integration foundation.
Two philosophies of integration infrastructure
Redox abstracts away per-EHR complexity: you integrate once with the Redox API, and Redox manages the connections, translation, and much of the monitoring across many health systems. Mirth Connect gives you a powerful, flexible engine — channels and JavaScript transformers — that you host, configure, and operate yourself, with no per-transaction platform fee. Redox is buy; Mirth is build. The decision mirrors the classic trade-off between speed and managed convenience versus control and ownership.
Cost, control, and scale
Redox reduces engineering and maintenance and accelerates onboarding new health systems, at the cost of a platform dependency and ongoing fees — attractive when you need to scale across many customers quickly. Mirth has no platform licensing in its open-source edition and gives low-level control ideal for bespoke, on-premise, or cost-sensitive scenarios, but you own the infrastructure, monitoring, and reliability of mission-critical interfaces. As volume and customer count grow, Redox's managed model often wins on total effort; for targeted or self-hosted needs, Mirth can be more economical.
When teams use both
These aren't mutually exclusive. A common architecture runs Mirth Connect on-site within a hospital to handle local HL7 v2 interfaces and conversions, while using a managed platform or cloud store further up the stack for breadth and analytics. Many products start with one and add the other as needs evolve — Mirth for deep, custom, in-facility work; Redox for scaling outward across many EHRs. The right mix depends on your scale, margins, and how much control you need at the interface layer.
Feature comparison
| Feature | Redox | Mirth Connect |
|---|---|---|
| Model | Managed cloud platform | Self-hosted interface engine |
| Reach | Many EHRs via one API | Whatever you build per interface |
| Hosting & ops | Managed by Redox | You host and operate |
| Cost model | Platform fees | Free (open source) + your infra |
| Control | Higher abstraction | Low-level, full control |
| Best for | Scaling across many systems fast | Custom / on-premise / cost-sensitive |
| Maintenance burden | Lower (managed) | Higher (yours) |
Which should you choose?
Scaling a SaaS product across many EHRs
Redox — build once, onboard customers faster.
On-premise HL7 v2 routing in a hospital
Mirth Connect — flexible, self-hosted, no per-transaction fee.
Tight budget, deep technical control
Mirth's open-source engine fits cost-sensitive, custom needs.
Minimising integration maintenance
Redox's managed model reduces ongoing operational burden.
Verdict
Pick Redox when you need to reach many EHRs quickly with minimal operational burden and can absorb platform fees — it's the pragmatic choice for scaling SaaS across health systems. Pick Mirth Connect when you need low-level control, self-hosting, or to avoid per-transaction costs, and have the capacity to operate mission-critical interfaces. Many mature architectures use both: Mirth for deep in-facility work, a managed platform for breadth. Match the tool to your scale and control needs.
Frequently asked questions
Is Mirth Connect cheaper than Redox?
Mirth's open-source edition has no platform licensing fee, so it can be cheaper for self-hosted or targeted needs — but you bear the infrastructure, operations, and maintenance cost. Redox's fees buy managed reach and lower operational burden, which often wins at scale.
Can I use both Redox and Mirth?
Yes, and many teams do. A common pattern runs Mirth on-site for local HL7 v2 interfaces while a managed platform or cloud store handles breadth and analytics upstream. They address different layers of the integration stack.
Which scales better across many EHRs?
Redox is designed for breadth — integrate once and reach many EHRs through one API, with managed connections. Mirth scales through engineering effort you own, which can be heavier as customer count grows.
Choosing your integration foundation? We help teams pick and build on Redox, Mirth, or a hybrid. Book a discovery call to design your stack.