FIX Assistant
Decode raw FIX protocol messages via the clipboard. FIX Assistant is a native desktop application, always-on in your task or menu bar. To decode FIX, select and copy the raw message, choose an output format from the FIX Assistant menu, and paste to the destination.
Decodes FIX version 4.x and 5.x, and can convert tags and enum values to their string names for ease of reading.
Works with Outlook, GMail, Word, Jira, Confluence, and most other applications.
for Windows, macOS, or Linux
All FIX Versions
Support for all FIX versions: 4.0, 4.1, 4.2, 4.3, 4.4, 5.0, 5.0sp1, and 5.0sp2. Decodes all standard tag numbers and enum values.
Application Compatibility
Format decoded messages for pasting into: Outlook™, GMail™, Word™, Jira™, Confluence™, as well as plain text and HTML.
Self-contained
Fully self-contained application does not require Internet access, suitable for air-gapped networks. The complete FIX database is included in the installer packages.
Cross-platform
Same application available for Windows, macOS and Linux. Uses the renowned Qt toolkit for cross-platform functionality.
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CLI Tool
In addition to the GUI, all platforms support decoding and formatting from the command-line: great for use over SSH to production servers.
Downloads
The downloaded installers are fully functional, and are not time-limited. However, it will not automatically update to newer versions, and support will be provided on a "best effort" basis only.
If you purchase a support package, you will get access to automatic software updates and priority support.
FIX Assistant is licensed under the Open Source MIT licence. You may download the full source code at no cost, modify it, and redistribute the source code and/or compiled executables.
zeroXone is the original author of FIX Assistant, and offers pre-built installers and full commercial support to those who purchase a support package from us. If you use it in a professional context, you are encouraged to purchase a copy, and support the future development of this application.
Windows
Microsoft Windows 7 and 10 with x86 or x86-64 processors.
This version will likely also work on Windows 8 / 8.1, and on Windows Server 2012 or later, but use on these platforms is not supported.
macOS
Apple macOS 10.12 Sierra, 10.13 High Sierra, and 10.14 Mojave for x86-64 processors.
Ubuntu
Canonical Ubuntu Linux 16.04, and 18.04 for x86-64 processors.
This version will likely also work on non-LTS versions: 16.10, 17.04, 17.10, and 18.10, but use on these platforms is not supported.
Fedora
Fedora Linux 28, and 29 for x86-64 processors.
Frequently-asked Questions
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