Hreflang Tag Generator

Both are valid. XML sitemap is easier to maintain for large sites as it centralises all declarations. HTML tags require adding code to every page but are simpler to implement on small sites. Whichever you choose, every page in a hreflang set must reference every other page including itself (self-referencing). Missing reciprocal tags cause Google to ignore the entire implementation.

x-default is the fallback page shown to users whose language or country does not match any specified alternative. Typically set to your international English page, homepage language selector, or most widely accessible page. It is optional but strongly recommended.