WE'RE OPEN SOURCE

Automate & change webpage's behaviour with JS & CSS

Customise any Webpage using Requestly's Insert script Rule. Add Custom JavaScript (JS) or Styles (CSS) Remove/hide unwanted sections, add action buttons, add your own libraries to support your script, etc.

insert script editor

Inject JS Script

Inject custom JavaScript code into a webpage. This feature enables you to modify the behavior or appearance of a website by running your own scripts

Inject CSS

inject custom CSS styles into a webpage and override existing styles or add new styles to elements on a website

Multiple Scripts Support

Supports the execution of multiple scripts simultaneously on a webpage. This feature allows you to combine and apply multiple JavaScript or CSS injections to a website

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185,000+ Happy users

Hear It from our customers

Luke Seleenbinder

Luke Seleenbinder

Founder & CEO - Stadia Maps

When I think about Requestly, I think it fits one of the key aspects of selling a product - show rather than tell. Requestly gives us the power to show the customers our solution on their own websites rather than some demo environment which they're not familiar with.

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Robert Thelen

Robert Thelen

Co-founder & CEO - Rownd

Requestly has eliminated the complexity of testing environments for us, allowing our development team to directly test API and JS snippet changes on customer apps and sites without the need for deployment cycles.

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Michael Levinson

Michael Levinson

CPO & Co-Founder

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.

Piers Carrigan

Piers Carrigan

QA Lead

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.

Mike Mitchell

Mike Mitchell

QA Engineer at Clayton Homes

I'm a big fan of Requestly, and use it on a daily basis as a QA Engineer. It removes the need to use Charles pretty often, which is always nice. Not that Charles wouldn't do the job, it's just super convenient to not need to open a separate application to do the same things -- instead I can just use Requestly directly in Chrome

Carl Hand

Carl Hand

Senior Software Engineer at Workday

Requestly is awesome. I used to use Charles proxy in my day to day work but it always messed with my wifi. I haven't had any issues with Requestly. Requestly's UI is amazing too and great to work in

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!

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.