RSS feed validators, both Online and Offline
Feed Validator for Atom and RSS
This is a validator for syndicated feeds. It works with RSS 0.90, 0.91, 0.92, 0.93, 0.94, 1.0, and 2.0. It also validates Atom feeds.
Feedvalidator-users Email List
Questions, bugs, patches, and general discussion of FeedValidator.org's Atom and RSS feed processing service.
Redland RSS 1.0 Validator and Viewer
Enter the address of an RSS 1.0 feed into the form, and it will be validated and formatted for display.
RSS1.0 Validator (ldodds.com)
An experimental online RSS1.0 Validator
Userland RSS validator
Userland Software's online validator for RSS 0.9x
W3C RDF Validation Service
A full RDF Validation Service - for use with any RDF, not just RSS 1.0
Last update:October 30, 2011 at 17:24:04 UTC