Some of her notable works include:
- "An Imperfect Haven: Race, Religion, and the Politics of Belonging in a Haitian Neighborhood" (2017) is a non-fiction book that examines the lives of Haitian immigrants in the Boston area and their struggles and triumphs in the face of discrimination and poverty.
- "The Haiti You Don't Know" (2019) is a collection of essays that provide an in-depth look at various aspects of Haitian culture and society, including its music, art, cuisine, and religion.
- "When the Stars Begin to Fall" (2022) is a novel that tells the story of a young Haitian woman who must grapple with the aftermath of a devastating earthquake and the political corruption that ensues in her country.
Duplaix's writing is known for its deep insights, personal stories, and passionate advocacy for social justice. She has also written for various publications, including The New York Times, The Boston Globe, and The Nation, and has appeared on several television and radio programs to discuss issues related to Haiti and the Caribbean.