Input
Paste Hex or Base64, or choose a binary payload file. Hex accepts spaces, line breaks, colons, commas, and 0x prefixes.
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BUILD PACKET ↗PACKET / MODBUS
Network data workbench
Modbus packet parser.
Inspect Modbus network packets online: explore protocol fields, byte offsets, hexadecimal values, and raw payload data with a focused Modbus packet analyzer.
101protocolsHEXBASE64 / BIN1 MiBparse limit
Active profile
Modbus
Ready
0 bytes
- Parsed fields will appear here.
Select a field to inspect its byte range and value.
Inspect
Parsed fields retain byte offsets and lengths. Selecting a field highlights its corresponding bytes and shows the decoded value.
Handle with care
Parsing sends the current data for processing. Do not submit credentials, keys, personal records, or sensitive production traffic.
PROTOCOL REFERENCE
About Modbus packet parsing
Inspect Modbus packet bytes in a focused network protocol workspace. The page exposes industrial register reads and writes, preserves byte offsets, and lets you compare field values with the original Hex, Base64, or binary payload.
01Paste a captured Modbus payload as Hex or Base64, or open a binary file to keep the original byte sequence intact.
02Select a field to highlight its exact byte range and inspect the decoded value, type, offset, and length.
03When you need a test fixture instead of an existing capture, open the Modbus packet generator to compose a new payload.
Frequently asked questions
What does this Modbus parser show?
It displays the decoded Modbus fields together with byte offsets, field lengths, values, and the corresponding hexadecimal bytes.
Can I inspect a Modbus capture without converting it first?
Yes. The parser accepts Hex, Base64, and binary files, so a payload extracted from a capture can be inspected directly.