Client-side Thin SDKs
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Harness FME provides client-side SDKs that let you evaluate feature flags, run experiments, and deliver personalized experiences directly in your application's frontend.
Thin SDKs delegate flag evaluation to the Remote Evaluator in FME cloud rather than computing treatments locally. Rollout rules stay in the cloud, and the SDK sends the target to FME cloud each time it fetches an evaluation. Use a thin SDK when keeping rollout rules off the client is the deciding factor.
If you have not chosen between local and remote evaluation yet, see Choosing an evaluation mode.
Get started
Select a platform to start integrating an FME thin SDK into your client application.
