Comparing TypeScript/Node.js EDI libraries: EDIFlow vs edifact vs x12-parser

[hello-ediflow]

I'm evaluating npm packages for EDI parsing in Node.js. The main options seem to be:

• edifact (EDIFACT only)
• x12-parser (X12 only)
• @ediflow/core (both?)

What are the differences in features, maintenance, and TypeScript support?

[hello-ediflow]

Here's a comparison based on npm and GitHub data (May 2026):

Feature	edifact	x12-parser	@ediflow/*
Standards	EDIFACT only	X12 only	EDIFACT + X12 + HIPAA + EANCOM
TypeScript	❌ JavaScript	❌ JavaScript	✅ Native TypeScript
Validation	Basic syntax	None	3-phase (syntax + structure + business)
Message Builder	❌ No	❌ No	✅ Full builder with envelopes
Business Object Mapping	❌ No	❌ No	✅ Type-safe mapping
Schema Export	❌ No	❌ No	✅ JSON Schema & TypeScript
Message Definitions	Limited	Limited	1294+ message types
Architecture	Monolith	Monolith	Clean Architecture monorepo
Tests	~50	~30	857

When to use what:

• edifact — Simple EDIFACT-only parsing, no TypeScript needed
• x12-parser — Quick X12 segment splitting
• @ediflow/* — Production EDI gateway, type safety needed, multi-standard, validation + building required

npm install @ediflow/core @ediflow/edifact @ediflow/edifact-d96a

📦 npmtrends comparison