Stražanac has a particular affinity for rarely performed operas, and in recent years he has sung the title roles in the premieres of Telemann’s Orpheus in Amsterdam and Caccini’s Liberation of Ruggiero from the Island of Alcina in Vienna’s Theater an der Wien, where he also portrayed the Devil in Weinberger’s Schwanda the Bagpiper. He performed the roles of Ambrosio in Weber’s The Three Pintos in Leipzig and King Froila in Schubert’s Alfonso und Estrella in Helsinki. Additionally, he performed in Handel’s Messiah, directed by Robert Wilson, at the Gran Teatre del Liceu in Barcelona. 

Krešimir Stražanac studied under Dunja Vejzović, studying lied with Cornelis Witthoefft at the State University of Music and Performing Arts in Stuttgart, and he also studied privately with Jane Thorner Mengedoht and Hanns-Friedrich Kunz. After graduating, he became a permanent member of the Zurich Opera. Over seven seasons, he played roles such as Harlequin (R. Strauss’ Ariadne auf Naxos), Baron Tusenbach (Eötvös’ Three Sisters), Ping (Puccini's Turandot), and Don Fernando (Beethoven’s Fidelio) under conductors such as Vladimir Fedoseyev, Bernard Haitink, Nello Santi, Peter Schneider, and Franz Welser-Möst. 

Stražanac is the winner of several international competitions, including Cantilena in Bayreuth, La Voce of Bavarian Radio and Television, and Hugo Wolf, in the composer’s hometown of Slovenj Gradec, Slovenia. 

His first lied album was released in November 2024 on the Hänssler Classic label. This double CD features the first studio recording of songs by Croatian composer Blagoje Bersa, which Stražanac recorded in collaboration with pianist Krešimir Starčević. The album received praise and the highest ratings from critics.