Wranå has skipped the Swedish team in four World Junior Curling Championships, in 2014, 2015, 2017 and 2018. In 2014, she led her team of Jennie Wåhlin, Elin Lövstrand, Fanny Sjöberg and Almida de Val to a fourth-place finish, after they lost in the bronze medal game to Russia. In 2015, she and teammates Wåhlin, Johanna Heldin, Sjöberg and Johanna Höglund again finished fourth after this time losing to Switzerland in the bronze medal game. She was back at it in 2017 when her and teammates Wåhlin, de Val and Sjöberg won the gold medal, defeating Scotland's Sophie Jackson in the final, and lost just two round robin games in the process. The next year the same team went undefeated in the round robin, but ended up losing to Canada's Kaitlyn Jones in the final. This team also represented Sweden at the 2017 Winter Universiade, where they took home the bronze medal.