The series has been well received in Japan, with the anime adaptation ranking in the top twenty in Animage's polls between 1996 until 2000, where it dropped below the top twenty. In the Japanese TV anime ranking, Detective Conan often ranked the top six. It has even been used as a mascot to promote citizens to follow the law. The English adaption has not been as equally popular as in Japan, and has been criticized for the name changes.
The manga is a huge success and it is continued to be published. It won the prestigious Shogakukan Manga Award for the shōnen category in 2000. Some of its volumes appear on the lists of best-selling manga.
The series is successful in Asia and Europe, where some countries translated most of the episodes and volumes. Due to the high popularity DC is re-broadcasting in many countries after the original premieres.
Although popular in many other countries, Case Closed was not as successful in the US, most likely due to poor advertising, name changes, and script changes. Due to this, the "Case Closed" version was cancelled at only 130 episodes. However, the manga is still released by VIZ media.
The story follows the adventures of Shinichi Kudo (also known as Jimmy Kudo in Case Closed), a young detective prodigy who was inadvertently shrunk into a child's body due to a poison he was force-fed by members of a criminal syndicate. Neighbor and family friend Professor Agasa strongly suggested Shinichi hide his identity to prevent them from killing him and the people he cares about, so Shinichi takes the name Conan Edogawa. He goes to live with his childhood friend Ran Mouri and her father, Kogoro, and tries to use Kogoro's detective agency as a way to find the people who shrank him—without letting Ran figure out who he really is.