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HEX Dump Viewer

Visualise raw bytes in classic xxd-style: offset, grouped hex pairs, and ASCII side-by-side. Indispensable for inspecting payment message fields, TLV blobs, and binary protocol data.

Follows xxd (vim)9.1·verified Oct 2026· double-checked Oct 2026— copied text matches xxd -c 8|16 -g 2|4 stdout byte for byte

Bytes/row
Group
Spaces and case optional — e.g. 9F 26 08 …
Something wrong or missing? Report a problem— we check reports against the specs and fix them.

Related tools

🔄HEX ↔ ASCII Converter🔓EMV TLV Decoder📦ISO 8583 Parser🧱ASN.1 / DER Decoder🔡Base64 Encoder / Decoder🔢BCD / Hex / Decimal Converter

Standards & Guides

🔐3D Secure Guide💳Transaction Flow🪙Tokenization Guide