Built a modern HL7 v2 / FHIR editor for Mirth debugging — looking for honest feedback

[techemv-srl]

Hi all,

Long-time Mirth user here (stuck on 4.5.2 like many of you after the
4.6 licensing change). I've been frustrated for years that when I need
to inspect a specific HL7 message outside Mirth — or test a channel
by sending crafted ADT/ORU messages — my options are:

• 7edit (abandoned since ~2015, Windows-only)
• HL7 Inspector / HAPI TestPanel (Java Swing, struggles past 2-3 MB)
• HL7 Spy (~$8.7k/year, view-only for FHIR)

So TECHEMV (we're a small Italian integration shop) spent the last
months building BridgeLab — a desktop HL7 v2 / FHIR editor focused on
the stuff Mirth's own Message Browser does poorly:

• Opens 10 MB messages with base64 attachments in under 2 seconds
  (SIMD parser in Rust, on-demand field truncation so Monaco never
  sees 10 MB of raw text)
• MLLP client AND listener with auto-ACK — point a Mirth channel at
  port 2575, watch the inbox fill up, open any message in a tab
• FHIRPath evaluator for Bundles
• PHI anonymization that preserves message structure (21 built-in PID/
  NK1/IN1/GT1 fields, extensible via declarative JSON plugin packs —
  no code execution)
• Cross-platform: Windows / macOS (Intel + ARM) / Linux (.deb / .rpm
  / AppImage)
• Free core (MIT), Pro tier for listener/HTTPS/plugins unlimited/FHIR
  bundle visualizer. 7-day Pro trial, free tier stays usable for real
  work.

This is v0.1.0. I won't pretend it's battle-tested: you'd be among
the first external users. That's why I'm here — I need Mirth-shaped
feedback on what's missing, what's broken, and what's useless.

Download: https://techemv-srl.github.io/BridgeLab/
Repo (MIT core): https://github.com/techemv-srl/BridgeLab

Not trying to replace Mirth — I use Mirth every day. This is the
debugging tool I wished existed alongside it.

Happy to answer questions here or on GitHub Discussions.