In 1832 he settled at Leipzig as a journalist, where he co-edited Blätter für litterarische Unterhaltung, and where he was subjected to a rigorous police supervision.
In 1839 he married Klara Müller (1814–1873), who under the name of Luise Mühlbach became a popular novelist, and he moved in the same year to Berlin.
Here his intention of entering upon an academical career was for a time thwarted by his collision with the Prussian press laws.
Mundt wrote extensively on aesthetic subjects, and as a critic he had considerable influence in his time.
But perhaps Mundt's chief title to fame was his part in the emancipation of women, a theme which he elaborated in Madonna, Unterhaltungen mit einer Heiligen (1835).