You can watch the original Dexter series and its spinoffs on Paramount+ with the Showtime add-on. This includes all eight seasons of Dexter and the new spinoff Dexter: Resurrection, which started streaming on July 11, 2025. Additionally, Dexter is available to stream on fuboTV and for free with ads on The Roku Channel. Hulu also offers Dexter and Dexter: Resurrection for streaming. Specifically:

• Dexter (original series) is streaming on Paramount+ with Showtime, fuboTV, and The Roku Channel.
• Dexter: Resurrection is available on Paramount+ with Showtime (premium tier) and Hulu.
• Dexter: New Blood is also on Showtime's streaming services.

Note that Dexter was removed from Netflix in June 2025, so it is no longer available there. To watch Dexter: Resurrection and the original series, you'll need a subscription to Paramount+ with Showtime, which is the main streaming home for the Dexter universe as of 2025.