# what hte difference between FIX and FIXML?

**URL:** <https://forum.fixtrading.org/t/what-hte-difference-between-fix-and-fixml/2584>\
**Category:** General Q&A\
**Tags:** general-qa, xid\_166201, imported\
**Created:** [July 11, 2007, 11:53am UTC](https://forum.fixtrading.org/t/what-hte-difference-between-fix-and-fixml/2584 "2007-07-11T11:53:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![vllv\_x](https://yyz2.discourse-cdn.com/flex010/user_avatar/forum.fixtrading.org/vllv_x/32/98_2.png) [@vllv\_x](https://forum.fixtrading.org/u/vllv_x)\
**Post date:** [July 11, 2007, 11:53am UTC](https://forum.fixtrading.org/t/what-hte-difference-between-fix-and-fixml/2584/1 "2007-07-11T11:53:29Z")

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Imported from previous forum

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**Author:** ![vllv\_x](https://yyz2.discourse-cdn.com/flex010/user_avatar/forum.fixtrading.org/vllv_x/32/98_2.png) [@vllv\_x](https://forum.fixtrading.org/u/vllv_x)\
**Post date:** [July 11, 2007, 11:53am UTC](https://forum.fixtrading.org/t/what-hte-difference-between-fix-and-fixml/2584/2 "2007-07-11T11:53:29Z")

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Hi all!

Can anyone tell me what hte difference between FIX and FIXML? And can the server working upon the FIX recieve FIXML data?

For example, please, write a login and logout messages.  
Thanks!

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<div class="post-metadata">

**Author:** ![fplpo\_x](https://avatars.discourse-cdn.com/v4/letter/f/7ab992/32.png) [@fplpo\_x](https://forum.fixtrading.org/u/fplpo_x)\
**Post date:** [July 11, 2007, 1:49pm UTC](https://forum.fixtrading.org/t/what-hte-difference-between-fix-and-fixml/2584/3 "2007-07-11T13:49:48Z")

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[original email was from Marcondes Farias - mfarias@bmf.com.br]  
Hi,

the difference between them are 2 letters!!

Talking seriously now, the main difference is that FIX is represented as a set of tag-value parts inside one stream of bytes. FIXML is a XML representation of the tag-value stream of bytes. For instance you could have a FIX message like:

8=FIX.4.49=8135=A34=149=SOMEONE … etc…

represented in FIXML as something like this (not  
FIX.4.4  
81  
35=A  
1  
SOMEONE …

hope this can help…

Marcondes

> Hi all!
> 
> Can anyone tell me what hte difference between FIX and FIXML? And can  
> the server working upon the FIX recieve FIXML data?
> 
> For example, please, write a login and logout messages. Thanks!