You can retrieve the result of a previously-scheduled validation run by entering its key here:
This tests the syntax and internal consistency of an SBML file. Passing this validator does not guarantee correctness, but it's the best automated assessment available.
This validator supports all specifications of SBML through Level 3 Version 1 Core (Release 1), as well as all Level 3 packages for which specifications exist. Limitations: (1) For SBML Level 3 packages that have not been finalized, validation is limited to XML syntax only; consequently, a model may have other errors in its use of Level 3 package constructs yet still pass this validator. (2) SBML <annotation> element content is always only checked for proper XML syntax; the content of annotations is not validated; consequently, a model may have errors in its annotations yet still pass this validator. (3) The maximum file size allowed is 32 megabytes (compressed or uncompressed).
The change log summaries recent changes made to the Online SBML Validator.
This facility is the work of Frank T. Bergmann, Michael Hucka, Benjamin J. Bornstein, and Akiya Jouraku. It is an interface to the validation engine built into libSBML 5.13.1. This version of the validator uses the XML parser library "libxml".