---
title: Changing Feature Flag settings in Safari on macOS
framework: Safari Developer Features
role: article
role_heading: Article
path: safari-developer-tools/feature-flag-settings
---

# Changing Feature Flag settings in Safari on macOS

Test new web platform features before they ship in Safari.

## Overview

Overview The web is constantly evolving with new features and technologies. It can be exciting to see potential future tools and technologies, and even more exciting to begin experimenting with them before they ship in web browsers. Safari lets you enable these features using the new Feature Flags settings, which can be opened from the Develop menu by choosing Feature Flags…. Features are organized by topic, like Animation, CSS, JavaScript, Media, and more, making it easy to find related features. They can also be searched by both feature name and status. When you toggle a feature to a non-default state, its name is displayed in bold. important: The default setting for each feature flag is how users will generally experience your content, so make sure your pages gracefully handle the absence of a feature you’ve enabled for development. Feature Statuses There are four possible statuses for a feature, each with a different meaning and default state. Non-developer features will typically start as Testable features, and then move to Preview as the feature and spec the feature is based on matures, eventually becoming Stable features.

## See Also

### Settings

- [Changing Developer settings in Safari on macOS](safari-developer-tools/developer-settings.md)