This is an experimental technology
Check the Browser compatibility table carefully before using this in production.


This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The BudgetService interface of the Web Budget API provides a programmatic interface to the user agent’s budget service. It is available in both document and worker environments.




Returns a Promise that resolves to a double, indicating the worst-case background operation cost of the provided background operation.
Returns a Promise that resolves to an array of BudgetState objects, indicating the expected state of the budget at times in the future.
Returns a Promise that resolves to a boolean, indicating whether the requested budget operation can be reserved.

Browser compatibility

BCD tables only load in the browser