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Works for APIs triggered by XHR/fetch

Using Requestly Modify Response rule, you can override the API responses triggered by XHR/fetch. No need to hardcode API responses in frontend code anymore.

 Test error paths in your code

Modify API responses to trigger different error paths in your codebase and test the flows without changing anything on backend. e.g. Simulate Payment Timeout Issue, Item out of stock Issue, etc.

1-Click Sharing

Use-Cases in teams are very similar so Requestly makes it easier to share the rules with each other and collaborate faster.
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What our customers say

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4.7/5 Star ratings

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1000+ Chrome web store reviews

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160,000+

Happy Users

Afsheen Amroliwala

Afsheen Amroliwala

Software Development Engineer

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With Requestly, we can quickly set up "Replace Rules for switching API & Javascript Hosts" and load selective (or all) APIs from the local environment directly on higher environments. This saved us a lot of hassle, time & effort in working across environments. It's a go-to tool every day for Devs & QAs now.

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Michael Levinson

Michael Levinson

CPO & Co-Founder

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Requestly not just made it easier for us to develop, test & debug our code on our customer sites but It also helps us do engaging product demos to our prospective clients.

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Piers Carrigan

Piers Carrigan

QA Lead

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Requestly is a game-changer for us. It started with one person and now the entire team uses Requestly to test our Staging code on production customers & non-customer sites. We more confidently ship product updates now.

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Robert Wharton

Robert Wharton

Senior Product Manager at Metrical

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Requestly has been a lifesaver for testing our product on our customers websites. Everyone's stage sites are a hot mess of half finished dev projects, but Requestly allows us to mock up stage sites in seconds that better reflect the live sites!

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Nitish Mittal

Nitish Mittal

Director of Engineering at Wingify

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Requestly is one-stop solution for all our needs at Wingify. Collaboration feature works like a Charm. Our devs & QAs collaborate on Requestly Rules while debugging & testing campaigns.

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Kushagra Gour

Kushagra Gour

Frontend Lead at PushOwl

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Requestly’s Script Modification Rule feels like magic. Me & my team actively use Requestly to test our local changes on the customers websites and ensure we deploy no-breaking changes in production.

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Param Aggarwal

Param Aggarwal

Engineering Manager at Cult.fit

It allows me to convert my Chrome browser into a supercharged development tool by creating advanced rules to modify the requests that the website is making. Very useful to quickly tweak API parameters and image resolutions without any code change!

Mukul Gupta

Mukul Gupta

Senior Software Engineer at Adobe

I'd rate it as one of the best extensions around to boost developer productivity. Even if you're not a developer but need to navigate through loads of seemingly similar web pages, it is highly recommended with a very small learning curve.

Varun Jain

Varun Jain

Co-Founder at SendX

Requestly just works :) We are one of the paid users. We have been using Requestly to debug SendX Javascript API on our client's websites and Requestly has saved ton of debugging time for us.

Robert Wharton

Robert Wharton

Senior Product Manager at Metrical

Requestly has been a lifesaver for testing our product on our customers websites. Everyone's stage sites are a hot mess of half finished dev projects, but Requestly allows us to mock up stage sites in seconds that better reflect the live sites!

Rafael Gibelli

Rafael Gibelli

Compra Rapido YC W'22

Requestly is a fantastic tool. It has made our team's life so much easier and more productive. Totally Recommend!

Kos Breton

Kos Breton

Director (Management) at Coinbase

Thank you for making this great addon. I just checked out Requestly and indeed it is very easy to set up. It helps me customize my browsing experience entirely. Keep up the great work!

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Empowering frontend developers to achieve more in development, testing & debugging workflows.

Download for Chrome

Download for Chrome
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