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Free X12 EDI Viewer and Converter (835, 837, HIPAA Healthcare)

View and convert X12 EDI 835 (ERA), 837 (claims), and other HIPAA EDI transactions in a clean, human-readable format (examples). Displays 100% of EDI fields and automatically decodes CPT, ICD, UB, and other healthcare codes.

Export data to CSV, Excel, or JSON using built-in formats or custom mappings (paid). View CSV column documentation and JSON schemas.

Free viewer’s limits: 25 KB files, up to 5 claims
Unrestricted viewer: large files, unlimited claims, search, analytics, and more. View demo and sign up for a trial.

Want to automate converting your files? Try our on-prem EDI Converter via API or CLI with bundled EDI Viewer

Data Protection and HIPAA Compliance

  • The viewer does not store uploaded files. They are deleted automatically as soon as a file is rendered.
  • No PII/PHI information is written to the logs.
  • The viewer does not use a database; file processing is done in-memory.
  • Our instances are recycled every night.

Note: the viewer is a free tool; consider upgrading to our paid version and establishing a Business Associate Agreement with us to ensure full compliance.

What’s new in the free version?

  • Rendering of outpatient and inpatient adjudication data (MOA/MIA segments); “pay-to address” for billing providers and “pay-to plan” for subrogation claims
  • Additional payment details for 835; more intuitive display of payment details and service lines
  • New export to CSV option for 837/835: repeat claim-level data on all lines, here is an example
  • We now support export of 834 files to CSV and Excel; see examples here
  • You can now export/convert 835/837 directly to Excel format without having to go through CSV. Click “Download CSV/Excel” and select an Excel option.
  • CSV column description and X12 EDI mapping (data dictionary) for 835 and 837P
  • Improved parsing of 810 and many other non-healthcare transactions.
  • Improved reporting of parsing warnings with segment and line numbers
  • CSV export for 837I (institutional/hospital claims)
  • You can now export only key fields for 835 and 837, select “Download CSV/Key Fields”

We’re constantly improving the viewer; please sign up for our updates below: