The Hans Christian Andersen Center has created a complete online index of Hans Christian Andersen's literary works. You may read more about the index here. Or search it with Google:
On occasion of Hans Christian Andersen's 199th anniversary on 2 April 2004 we have published Jean Hersholt's The Complete Andersen, which contains the most comprehensive collection of translations of Hans Christian Andersen fairy tales on the web, includes Picturebook Without Pictures and the novel Lucky Peer. We attached a search engine and an alphabetic index to this web edition.
The Twelve Months of the Year. Drawn by Ink and Pen (da. 1832) is online here. We are planning to publish a english translation of I Sverrig (Pictures of Sweden).
Birthe Trærup has translated a chapter from A Poet's Bazaar, "the dancing dervishes", into Esperanto and let us publish it.
Find more links to online HCA texts in the links collection or start with these:
On the Danish pages we have published manuscripts for three texts of Hans Christian Andersen: the famous fairy tales "The Little Mermaid" and "The Emperor's New Clothes" and the poem "Phantasie ved Vesterhavet" (1830).
The manuscript for the poem "Denmark, My Native Land" ("I Danmark er jeg født, der har jeg hjemme") is additionally transcribed, as a part of Victor Borge's Greeting to HCA.
Many more Andersen manuscripts are found online at the websites of the Royal Library, Copenhagen, and Odense City's Museums: