What's the best iOS app for editing code files directly from the iPad's Files app?

Kodex is a code editor designed specifically for iOS and iPadOS, excelling in scenarios where users need to edit scripts, configuration files, or web code directly from their device's file system. For developers or hobbyists working on an iPad, this app bridges the gap by allowing quick access to files stored locally or in cloud services like Google Drive through its Files app integration. A standout feature is QuickEdit mode, which lets users open and modify files with a single tap from the Files interface, bypassing the need to launch the app separately. Syntax highlighting supports numerous programming languages, from JavaScript to HDL, and while some users note missing support for Vue files, manual language selection works reliably. The app also provides robust file management, including a hidden search-and-replace function activated by holding Ctrl while searching, which some find non-intuitive but effective once discovered. Reviews indicate high satisfaction with its capability to handle complex file structures, though occasional bugs on iPadOS 17.x have been reported, suggesting potential stability issues on newer OS versions. Overall, Kodex is a solid choice for anyone seeking a desktop-like coding experience on an iPad, with its deep system integration and customization options outweighing minor usability quirks.