An important message to FlowJo v9 users:

Apple recently announced that macOS 10.14 Mojave will be the last Apple operating system to support 32-bit applications, such as FlowJo v9. 

To clarify what this means for our v9 users:

FlowJo v9 will continue to work on Mojave and previous Apple operating systems that support 32-bit applications. FlowJo v9 will continue to authenticate with serial numbers and dongles.

It's expected that macOS 10.15 Catalina and all following  Apple operating systems (macOS Big Sur 11, Monterey 12 and Ventura 13) will not support 32-bit applications and Apple computers that upgrade to Catalina will no longer run FlowJo v9. Please carefully consider your options before upgrading to Catalina if you use FlowJo v9.

The Good News

FlowJo v10 is a 64-bit application and will continue to run on Catalina. Access to v10 is included in your v9 license. To upgrade, visit our Downloads page. For technical and application support, please contact


Download FlowJo v9