Inspect and modify HTTP parameters like headers, methods, and content for websites and APIs. Useful for debugging web applications, mobile apps, and APIs, or for educational exploration.



10+ similar apps compared and reviewed
Looking for something like Codable? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.



Inspect and modify HTTP parameters like headers, methods, and content for websites and APIs. Useful for debugging web applications, mobile apps, and APIs, or for educational exploration.






Build web applications directly on your smartphone using JavaScript, CSS, and HTML. This tool offers error checking as you code, ensuring you don't lose your ideas. It's designed for developers who need to write code on the go.



Inspect and share HTML, CSS, and JavaScript source code from mobile web pages directly on your device. Debug web applications by viewing source code as a real mobile browser would.


This open-source application provides robust text editing capabilities for iOS devices. It allows users to manage files and directories, view content in a built-in browser, and download files via HTTPS. The app also offers convenient features like an accessory view for symbol input and markdown preview.


Easily convert HTML files to various formats like Word, PDF, and TXT. This app offers unlimited, fast conversions without fees or sign-ups, preserving document layout and details. It supports numerous input and output formats, with custom output options for printing or sharing.


Discover and interact with services on your local wireless network. This utility lists available Bonjour (ZeroConf) services, displays their details, and allows you to launch compatible applications directly from the service listing.


Enhance your iOS Shortcuts with advanced AI capabilities. This app integrates with your existing OpenAI API key to provide powerful new actions for your automations. Note that it does not support Apple Watch or HomePod.


Inspect TLS certificates for any domain or IP address to understand trust and safety. Detect man-in-the-middle attacks by highlighting invalid certificates. Access detailed certificate properties and integrate with your browser.


This utility app provides a suite of network tools for information searching, traceroute, ping, WHOIS, and DNS lookups. It's designed for network operators, website owners, and programmers seeking a fast and convenient assistant.


Write and execute JavaScript code directly on your iPhone or iPad. This app provides a simple shell, run logs, and essential functions for on-the-go coding. Perfect for developers who need to stay productive anywhere.