SyncManagerLimited availabilityThis feature is not Baseline because it does not work in some of the most widely-used browsers.Learn moreSee full compatibilityReport feedbackNote: This feature is available in Web Workers. The SyncManager interface of the Background Synchronization API provides an interface for registering and listing sync registrations.Instance propertiesNone.Instance methods SyncManager.register() Create a new sync registration and return a Promise. SyncManager.getTags() Return a list of developer-defined identifiers for SyncManager registrations. SpecificationsSpecificationWeb Background Synchronization # sync-manager-interfaceBrowser compatibilitydesktopmobileChromeEdgeFirefoxOperaSafariChrome AndroidFirefox for AndroidOpera AndroidSafari on iOSSamsung InternetWebView AndroidWebView on iOSSyncManagerChrome – Full supportChrome49Toggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – Full supportOpera36Toggle historySafari – No supportSafariNofootnoteToggle historyChrome Android – Full supportChrome Android49Toggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historyOpera Android – Full supportOpera Android36Toggle historySafari on iOS – No supportSafari on iOSNofootnoteToggle historySamsung Internet – Full supportSamsung Internet5.0Toggle historyWebView Android – No supportWebView AndroidNofootnoteToggle historyWebView on iOS – No supportWebView on iOSNofootnoteToggle historygetTagsChrome – Full supportChrome49Toggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – Full supportOpera36Toggle historySafari – No supportSafariNoToggle historyChrome Android – Full supportChrome Android49Toggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historyOpera Android – Full supportOpera Android36Toggle historySafari on iOS – No supportSafari on iOSNoToggle historySamsung Internet – Full supportSamsung Internet5.0Toggle historyWebView Android – No supportWebView AndroidNofootnoteToggle historyWebView on iOS – No supportWebView on iOSNoToggle historyregisterChrome – Full supportChrome49Toggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – Full supportOpera36Toggle historySafari – No supportSafariNoToggle historyChrome Android – Full supportChrome Android49Toggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historyOpera Android – Full supportOpera Android36Toggle historySafari on iOS – No supportSafari on iOSNoToggle historySamsung Internet – Full supportSamsung Internet5.0Toggle historyWebView Android – No supportWebView AndroidNofootnoteToggle historyWebView on iOS – No supportWebView on iOSNoToggle historyAvailable in workersChrome – Full supportChrome61moreToggle historyEdge – Full supportEdge79Toggle historyFirefox – No supportFirefoxNoToggle historyOpera – No supportOperaNoToggle historySafari – No supportSafariNoToggle historyChrome Android – Full supportChrome Android61moreToggle historyFirefox for Android – No supportFirefox for AndroidNoToggle historyOpera Android – No supportOpera AndroidNoToggle historySafari on iOS – No supportSafari on iOSNoToggle historySamsung Internet – Full supportSamsung Internet8.0moreToggle historyWebView Android – No supportWebView AndroidNofootnoteToggle historyWebView on iOS – No supportWebView on iOSNoToggle history