A lightweight web security auditing toolkit

Caido aims to help security professionals and enthusiasts audit web applications with efficiency and ease.

Classic Meets Cutting-Edge

We’ve taken the tools you rely on and enhanced them to simplify your security tasks, making your workday more productive and less complicated.

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Proxy and view HTTP requests in real-time as you browse

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Resend existing and custom requests to manually test endpoints

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Customize and test requests against large wordlists

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Get a real-time visualization of your website's structure

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Automatically modify incoming requests with regex rules

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Create your own custom encoders/decoders

Extending your tool doesn't have to be painful.
Our workflow system allows you to customize Caido with minimal code required.

Ever felt overwhelmed by endless HTTP requests? We've been there. That's why we created HTTPQL - a quick, easy way to filter through the noise.

Run Caido on any device or VPS. Access your instances with a browser or our desktop application.

Easily create, delete, and switch between projects without the hassle of manual file handling.

Join the ranks of professionals who are switching to Caido for their security testing needs.