Almqvist was taught at home before completing her education in France and Switzerland, where she studied languages and literature.

[3][4] From 1910 to 1912, Almqvist worked as a literary critic for the Swedish journal Idun, as well as contributed articles to Rösträtt för kvinnor on the subject of women's rights.

Before the commencement of World War I, she published several books including, Ur en själs lif: efter funna anteckningar (1902), Den svenska kvinnan (1910), Boken om Erland Höök (1911), and Gwendolins brott och andra sägner från fattighäradet (1916).

She released her last book, I tolfte timmen: en gammal, dåraktig kvinnas bekännelser in 1928 under the pen-name Molly Molander.

She was liberal in the representation of same-sex relationships, and the issue of prejudice towards unmarried women frequently became the subject of her works.