X12 EDI Viewer | EDI Parser for 837, 850, 810

X12 EDI viewer and parser for 850, 810, 856, 837 and 835 files. Names every segment and element and checks ISA, GS and ST control numbers. Free, no upload. Designed specifically for developers and professionals, this free online viewer runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking and no registration required.

Also known as: x12 edi viewer · edi viewer online · edi parser online · x12 parser · ansi x12 viewer · edi 850 viewer · edi 837 parser · edi 835 viewer · x12 to json converter · edi file reader online

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X12 EDI Input

Parsed Interchange

Every envelope, segment and element will appear here with its X12 name and a check of the control numbers.

About X12 EDI Viewer

An X12 EDI viewer is used to read the ANSI X12 documents that retailers, suppliers, carriers and health plans exchange, such as 850 purchase orders, 810 invoices, 856 ship notices and HIPAA 837 claims. This tool reads the delimiters from the ISA header, names every segment and element, and checks that each envelope's control numbers and counts agree, the errors trading partners reject first.

Key Features

Reads element, component and segment delimiters from the fixed-width ISA header
Checks ISA13 against IEA02, GS06 against GE02, ST02 against SE02, and every segment and group count
Names segments and elements for 850, 810, 856, 997, 999, 834, 835 and 837 transaction sets
Explains codes such as N101 ship-to parties, PO103 units, CLP02 claim status and CAS01 adjustment groups
Identifies HIPAA implementation guides like 005010X222A1 (837P) from GS08 or ST03
Reformats a one-line file to one segment per line and exports the parse as JSON

Use Cases

Find why Walmart or Target rejected an 850 with an SE01 segment count error
Read an 835 remittance to see which CAS reason code reduced a claim payment
Check an 856 ship notice's HL hierarchy before a carrier pickup in Columbus, OH
Debug an 837P that a clearinghouse returned with a 999 rejection
Review EDI files during SOC 2 or HIPAA testing without uploading them to a third party
Turn a single-line EDI file into readable segments for an onboarding call with a trading partner

Supported Formats

ANSI X12 4010

ANSI X12 5010

.edi

.x12

.txt

Single-line or one segment per line

Related Keywords

x12 edi viewer

edi viewer online

edi parser online

x12 parser

ansi x12 viewer

edi 850 viewer

edi 837 parser

edi 835 viewer

x12 to json converter

edi file reader online

How do you read an X12 EDI file?

An X12 file is a series of segments ending in a terminator, usually a tilde. Each segment starts with an ID such as BEG or N1, and its elements are separated by the character in position 4 of the ISA segment, usually an asterisk. ISA is always exactly 106 characters, so its last two characters define the component separator and the segment terminator for the whole file. Envelopes nest: ISA and IEA wrap the interchange, GS and GE wrap a functional group, and ST and SE wrap each transaction, with matching control numbers on both ends.

Does this tool upload my EDI files?

No. Parsing happens in your browser and nothing is sent to a server. That matters for 837 and 835 files, which carry protected health information, and for purchase orders that carry pricing.

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Frequently asked questions

What is X12 EDI Viewer used for?

X12 EDI viewer and parser for 850, 810, 856, 837 and 835 files. Names every segment and element and checks ISA, GS and ST control numbers. Free, no upload.

Is X12 EDI Viewer free to use?

Yes. X12 EDI Viewer is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use X12 EDI Viewer?

No. X12 EDI Viewer works immediately in your browser with no signup, login, or email address required.

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