AbortController

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2019.

Note: This feature is available in Web Workers.

The AbortController interface represents a controller object that allows you to abort one or more Web requests as and when desired.

You can create a new AbortController object using the AbortController() constructor. Communicating with an asynchronous operation is done using an AbortSignal object.

Constructor

AbortController(): Creates a new AbortController object instance.

Instance properties

AbortController.signal Read only: Returns an AbortSignal object instance, which can be used to communicate with, or to abort, an asynchronous operation.

Instance methods

AbortController.abort(): Aborts an asynchronous operation before it has completed. This is able to abort fetch requests, consumption of any response bodies, and streams.

Examples

See the AbortSignal page for usage examples.

You can find a full working example on GitHub; you can also see it running live.

Specifications

Specification
DOM # interface-abortcontroller

Browser compatibility

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This page was last modified on Sep 17, 2025 by MDN contributors.

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