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WE'RE OPEN SOURCE

Open source alternative to ModHeader

On the other hand, Requestly is a powerful tool that goes beyond just modifying headers. It allows users to set up rules for modifying URLs, injecting scripts, and redirecting requests, thus offering a more comprehensive solution for web debugging and testing. Unlike Modheader, Requestly provides a broader range of functionalities, including the ability to manipulate both request and response data, making it a more versatile tool for developers.

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Comparing Requestly vs. ModHeader

Using ModHeader, you can modify http request headers. However, Requestly offers a complete web debugging platform for developers.

Features
ModHeader
Requestly
Team collaboration
Mock Server
Browser Extension
Desktop App
Android Debugger
Modify API Response
Query Param Modification
Session Recording

Our Users Tell a Better Story

Requestly is used by more than 180,000 developers from 4000+ organizations around the world. We take a lot of pride in providing the best support to our users and making them successful by building the best web debugging solution. Our users love us and so will you. 

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.