FLEXTool/FLEX

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

14631 stars · 1792 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

FLEX (Flipboard Explorer) is an in-app debugging and exploration library for iOS apps, written in Objective-C. It presents a toolbar overlay that lets developers inspect and modify views, objects, properties, network traffic, the file system, and more at runtime without needing Xcode or LLDB attached.

Use cases

• inspect and modify the iOS view hierarchy at runtime
• view and change properties and ivars on live objects
• dynamically call instance and class methods in a running app
• review network request history with headers and responses
• browse the app sandbox file system and SQLite/Realm databases
• explore classes in the app and system frameworks
• debug an app on a physical device without Xcode attached

When to choose

• you need runtime introspection of an iOS app without a debugger attached
• you want to debug on physical devices or in the simulator with an in-app overlay
• you need to inspect network traffic, file system, and object state from inside the app
• you are building debug builds of iOS apps and want a swiss-army exploration tool

When to avoid

• you need a production-safe tool - FLEX exposes app internals and should be stripped from release builds
• you are developing for platforms other than iOS/tvOS
• you need automated or CI testing rather than interactive manual debugging
• your project requires a permissively licensed dependency and the custom FLEX license is a concern

Facets

library · maturity stable

developer-tools testing logging monitoring developer-tools mobile-development cross-platform in-app-debugging runtime-inspection objective-c ios-development view-hierarchy network-logging heap-exploration debugging ios mobile

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markdown · JSON · MCP: product_card(name="FLEXTool/FLEX")