About EDI X12 Formatter

This tool helps you turn dense EDI X12 text into something you can scan and debug quickly — without sending your data anywhere.

What it does

• Pretty print X12 so each segment is on its own line
• Compact formatted X12 back into a single-line blob
• Copy or download the result instantly

Privacy

Formatting happens entirely in your browser. Your pasted X12 data is not uploaded and not stored.

Quick access

Bookmark the tool for fast access during partner onboarding, support, or testing.