Born on March 6, 1997, in Mumbai, India, Janhvi Kapoor hails from a prestigious family in the Indian film industry. Her father, Boney Kapoor, is a renowned film producer, and her mother, Sridevi, was a legendary actress who acted in Hindi, Tamil, Telugu, Kannada, and Malayalam movies. She has a younger sister, Khushi Kapoor, who is also an actress. From her father's first marriage, she has two half-siblings, Arjun Kapoor and Anshula Kapoor, who are also actors.

Janhvi completed her schooling at Ecole Mondiale World School in Mumbai. To pursue her passion for acting, she took an acting course from the Lee Strasberg Theatre and Film Institute in California.

Janhvi made her acting debut in 2018 with the romantic drama "Dhadak", co-starring Ishaan Khatter. The film was a commercial success, grossing over ₹1.1 billion worldwide. Her performance in the movie won her the Zee Cine Award for Best Female Debut.

She then starred in Zoya Akhtar's segment in the Netflix horror anthology film "Ghost Stories" in 2020. The same year, she played the title role of aviator Gunjan Saxena in the biopic "Gunjan Saxena: The Kargil Girl" which premiered on Netflix due to the COVID-19 pandemic.

In 2021, she played a double role for the first time in her career in the comedy horror film "Roohi". The following year, she appeared in two films, "Good Luck Jerry" and "Mili". In "Mili", her character gets locked in a freezer, and she does everything possible to fight against the freezing cold and keep herself alive.

In 2023, she starred in the movie "Bawaal" and received the Laboratoires Embryolisse presents Best Actor (Female) OTT Popular Choice award. She also has upcoming projects like "JGM (JanaGanaMana)" and "Teri Baaton Mein Aisa Uljha Jiya" slated for release in 2024.

Janhvi Kapoor is known for her impeccable sense of style and grace. She is passionate about dance, particularly classical and belly dancing. She often shares her dance videos on social media. She is also a fitness enthusiast, engaging in activities like yoga, pilates, and strength training.

Janhvi Kapoor's performances have earned her several awards and nominations. She won the Zee Cine Award for Best Female Debut for "Dhadak" in 2019. She also received nominations for the Filmfare Award for Best Actress for playing the titular aviator in "Gunjan Saxena: The Kargil Girl" and a woman trapped in a freezer in "Mili". In 2022, she won the Pinkvilla Style Icons Award for Super Stylish Youth Idol – Female. In 2023, she received the Bollywood Hungama Style Icons Award for Stylish Youth Icon – Female and the Pinkvilla Style Icons Award for Style Icon of the Year – Reader’s Choice.