The book is available at Project Gutenberg, Internet Archive, Hathi Trust, and Google Books. There is also a free audiobook at LibriVox.
First Adventure Concerning the Niebelungs
Second Adventure Concerning Siegfried
Third Adventure How Siegfried Came to Worms
Fourth Adventure How Siegfried Fought with the Saxons
Fifth Adventure How Siegfried First Saw Kriemhild
Sixth Adventure How Gunther Went to Issland to Woo Brunhild
Seventh Adventure How Gunther Won Brunhild
Eighth Adventure How Siegfried Journeyed to the Nibelungs
Ninth Adventure How Siegfried Was Sent to Worms
Tenth Adventure How Brunhild Was Received at Worms
Eleventh Adventure How Siegfried Brought his Wife Home
Twelfth Adventure How Gunther Invited Siegfried to the Hightide
Thirteenth Adventure How They Rode to the Hightide
Fourteenth Adventure How the Queens Quarrelled
Fifteenth Adventure How Siegfried Was Betrayed
Sixteenth Adventure How Siegfried Was Slain
Seventeenth Adventure How Siegfried Was Mourned and Buried
Eighteenth Adventure How Siegmund Returned Home
Nineteenth Adventure How the Nibelung Hoard Came to Worms
Book II
Twentieth Adventure How King Etzel Sent to Burgundy for Kriemhild
Twenty-First Adventure How Kriemhild Journeyed to the Huns
Twenty-Second Adventure How She Was Received Among the Huns
Twenty-Third Adventure How Kriemhild Thought of Revenging Her Wrong
Twenty-Fourth Adventure How Werbel and Schwemmel Brought the Message
Twenty-Fifth Adventure How the Kings Journeyed to the Huns
Twenty-Sixth Adventure How Dankwart Slew Gelfrat
Twenty-Seventh Adventure How They Came to Bechlaren
Twenty-Eighth Adventure How Kriemhild Received Hagen
Twenty-Ninth Adventure How Hagen and Folker Sat Before Kriemhild's Hall
Thirtieth Adventure How Hagen and Folker Kept Watch
Thirty-First Adventure How the Burgundians Went to Church
Thirty-Second Adventure How Bloedel Fought With Dankwart in the Hall
Thirty-Third Adventure How Dankwart Brought the News to His Masters
Thirty-Fourth Adventure How They Threw Down the Dead
Thirty-Fifth Adventure How Iring Was Slain
Thirty-Sixth Adventure How the Queen Bad Them Burn Down the Hall
Thirty-Seventh Adventure How Rudeger Was Slain
Thirty-Eighth Adventure How Dietrich's Knights Were All Slain
Thirty-Ninth Adventure How Gunther, Hagen, and Kriemhild Were Slain
