Modernizing the Fitbit Developer Experience.
The Fitbit Web APIs are moving to a new, scalable infrastructure. We will be deprecating the legacy Fitbit Web API in September 2026. To ensure uninterrupted data continuity for your users, you will need to migrate your applications. Detailed migration guides are live on the Google Health API developer site.
Developer Blog : by 'Jon Barlow'
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Developer Blog : by 'Jon Barlow'

It’s Time To Exercise With Fitbit OS 3.0

This update for Fitbit Ionic and Versa smartwatches will allow developers to easily create custom exercise applications, perform faster on-device calculations, launch other applications, upload files from the device to companion, and experience super fast side-loading with partial installs and compressed bundles. Read more

Join the Fitbit Developer Community

Introducing the Fitbit SDK, Fitbit Studio, and the New Developer Website Read more

By Your Command! Meet the Command Line Interface

Today is another exciting landmark in the evolution of the Fitbit OS Software Development Kit (SDK). We’ve created a command-line interface — it’s compatible with macOS, Windows, and Linux, and it allows developers to build and install Fitbit OS projects while using their favorite code editors, and their preferred version control system. Read more