Create rules to automatically modify API traffic in real-time.

The beta version of the new Web Rewriter is now available! Click here to learn what's new.

Modify Network Traffic

Intercept XMLHttpRequest (XHR), Fetch, and WebSocket traffic from any website. Create your own rules for how data should be modified.

Write your own rules

With Web Rewriter, the sky's the limit. Use powerful RegEx-enabled rules in the UI, or write your own code in JavaScript to make Web Rewriter work for you.

Test and validate different states

Test all of the what-ifs and edge cases you can imagine without modifying a single line of your site's code.

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