See study by S. A. Rooth (1955).
Bremer was not comfortable with this role, and was inflicted by a crisis, which she overcame by charitable work in the country around Årsta. In 1828, she debuted as a writer, anonomously, with a series of novels published until 1831, and was soon followed by others. Her novels were romantic stories of the time and concentrates on women in the marriage market; either beautiful and superficial, or unattractive with no hope of joining it, and the person telling the story and watching them is often an independent woman. She wanted a new kind of family life, not focused only on the men of the family, that would allow for women to develop their own talents and personality. By the 1840s, she was an acknowledged part of the culture life in Sweden and was translated to many languages. Politically, she was a liberal, but also felt symphaty for the socialism of the English working class movement.
Her novel Hertha (1856) remains her most influential work; it is a dark novel about the lack of freedom for women, and it raised a debate and contributed to the new law of legal majority for adult unmarried women in Sweden in 1858, which was somewhat of a start for the real feminist movement in Sweden. At the reforms regarding the right to vote of 1862, she supported the idea to give women the right to vote, which was talked about as the "horrific sight" of seeing "crinolines at the electionboxes". The first real Women's rights movement in Sweden, Fredrika Bremer Förbundet, founded by Sophie Adlersparre in 1884, was named after her. She was glad to mention and to recomend the work of other professional: she mentioned both the doctor Lovisa Årberg and the engraver Sofia Ahlbom in her work, and she helped Johanna Berglind to fund a School for the deaf and mute in Stockholm.
From 1849 she travelled for a couple of years, by herself, in the United States (1849-1851 and to the island of Cuba, and was disappointed in the promised land, particularly slavery. She alos visited Switzerland, Italy, Palestine and Greece 1856-1861 and wrote popular accounts of her travels.
Bremer never married. She got to know Per Böklin, a principal at a school in Kristianstad, in the 1830s, who gave her private lessons and became her friend; he asked her to marry him, but she said no after several years time to think about it.
Many of her works were translated into English by Mary Howitt.