Free Tool — NorthboundFIX

FIX Message Decoder

Paste any raw FIX protocol message and instantly decode every tag — field names, values, descriptions and enumeration translations. No install. No login. Always free.

FIX 4.2 FIX 4.4 FIX 5.0 FIXT 1.1 500+ tags Checksum validation Shareable links

💡 Bookmark this tool — press Ctrl+D (Win) or ⌘+D (Mac) to save it for next time.

Header tags (8, 9, 35, 49, 56…)

Body tags (message-specific)

Trailer tags (10, 89, 93)

Input — Paste FIX Message

0 chars

Sample messages

Decoded Output

⌗

Paste a FIX message on the left
to decode it here

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What would make this more useful? (pick all that apply)

📋FIX Log Analyser

🔧FIX Message Builder

🔢Checksum Calculator

🔍Tag Dictionary Search

⚡Session Simulator

🔌API Access

📦FIX 5.0 SP2

📊Export to Excel/CSV

📁Custom Data Dictionary

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FIX Message Decoder

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