Frida

What it is

Frida is a free open-source dynamic instrumentation toolkit maintained by the Frida project (frida.re, GitHub frida/frida). It lets developers, reverse engineers and security researchers inject scripts into running processes to observe and modify behaviour without rebuilding the target.

What it helps with

- Hooking functions and tracing APIs inside live desktop, mobile and embedded applications.
- Instrumenting Android and iOS apps during mobile security assessments and research.
- Supporting malware analysis and reverse-engineering workflows that need runtime visibility.
- Working across Windows, macOS, Linux, iOS, Android and other supported platforms from one toolkit.
- Using Python, Node.js, Swift, .NET, Go or C bindings, plus community scripts on CodeShare.
- Pairing with the free Luma GUI when an interactive Frida workspace is preferred.

Who it's for

Mobile security testers, reverse engineers and app developers who need a free dynamic instrumentation toolkit for authorised analysis of running software, including Android and iOS targets.

Worth knowing

Frida is free software and will remain free according to the project; core components are available from frida.re and GitHub. Official logotype from frida.re. Complementary to static reverse-engineering tools such as IDA Pro or Ghidra. Use only on systems and applications you are authorised to instrument.