Are you not sure about how to correctly generate hreflang annotations? You have come to the right place to start!
This tool will help you to generate hreflang tags for the different languages and alternatively, countries URL versions of a given page, with the correct syntax and value formats*, for example, for the following setting:
So as you can see this tool is not meant to generate the hreflang annotations for all the URLs of a given language or country Web version, or a massive amount of hreflang tags for URLs across them (wait for the next version of the tool for this) but rather, to help you to have a reference of the codes to facilitate this process.
You can either upload a CSV (one column only, urls) or fill in the form below
* The hreflang annotations generated will follow Google's specification, using the ISO 639-1 format for languages and ISO 3166-1 Alpha 2 format for countries. If you have doubts about why and how to use it, take a look at this Moz post.