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ISO8583 Builder

Build profile-aware message skeletons and bitmaps.

ISO8583 Message Builder

Compose a profile-aware authorization or network message skeleton with byte-level encoding.

Check input

Input

ModeInclude headerProfileMTIExactly four digits.MTI encodingDefault field encodingApplied to any data element without an explicit override.Default length bytesDefault length encodingData elementsOne field per line using field=value.

Field configuration

Field	Value	Encoding	Len bytes	Len enc
DE002	4111111111111111
DE003	000000
DE004	000000010000
DE007	0618123045
DE011	123456
DE022	051
DE037	615123456789
DE041	TERM0001
DE049	840

Output — 72 bytes

Full message (hex)

3031303072200400088080001034313131313131313131313131313131000000000000010000061812304512345600510c3631353132333435363738395445524d30303031383430

Component	Encoding	Bytes	Hex
MTI	ascii	4	30313030
Bitmap	bitmap	8	7220040008808000
DE002	ascii	17	1034313131313131313131313131313131
DE003	bcd	3	000000
DE004	bcd	6	000000010000
DE007	bcd	5	0618123045
DE011	bcd	3	123456
DE022	bcd	2	0051
DE037	ascii	13	0c363135313233343536373839
DE041	ascii	8	5445524d30303031
DE049	ascii	3	383430

Field	Encoding	Len bytes	Len enc	Len hex	Value bytes	Value hex
DE002	ascii	1	hex	10	16	34313131313131313131313131313131
DE003	bcd	0	hex	—	3	000000
DE004	bcd	0	hex	—	6	000000010000
DE007	bcd	0	hex	—	5	0618123045
DE011	bcd	0	hex	—	3	123456
DE022	bcd	0	hex	—	2	0051
DE037	ascii	1	hex	0c	12	363135313233343536373839
DE041	ascii	0	hex	—	8	5445524d30303031
DE049	ascii	0	hex	—	3	383430

A portable authorization profile for integration testing.

BCD value had odd digit count; left-padded with 0.