# Optimizely Feature Experimentation

[Optimizely Feature Experimentation](https://www.optimizely.com/products/full-stack/) (formerly Optimizely Full Stack) is a powerful A/B testing, feature flagging and experimentation platform. It lets you track every aspect of your customer's overall product journey, and experiment with various application features.

## Links

This documentation consists of the following sections:

- [Set up Optimizely Feature Experimentation in RudderStack]({{< ref "destinations/streaming-destinations/optimizely-feature-experimentation/setup-guide.md" >}})
- [Send events via cloud mode]({{< ref "destinations/streaming-destinations/optimizely-feature-experimentation/cloud-mode.md" >}})
- [Send events via device mode]({{< ref "destinations/streaming-destinations/optimizely-feature-experimentation/device-mode.md" >}})