The best free alternative to API Monitor is Process Monitor. If that doesn't suit you, our users have ranked more than 10 alternatives to API Monitor and ten of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to API Monitor are Valgrind, Stratoshark, SpyStudio and WinAPIOverride.
Process Monitor is an advanced monitoring tool for Windows that shows real-time file system, Registry and process/thread activity. It combines the features of two legacy Sysinternals utilities, Filemon and Regmon, and adds an extensive list of enhancements including rich and...
Valgrind is an instrumentation framework for building dynamic analysis tools. There are Valgrind tools that can automatically detect many memory management and threading bugs, and profile your programs in detail. You can also use Valgrind to build new tools.
Provides an unprecedented view into application activity on systems, enabling exploration and analysis with advanced features. Familiar to Wireshark users, it offers seamless integration with Falco and Sysdig CLI, empowering IT professionals with comprehensive diagnostics and troubleshooting capabilities.
SpyStudio is the best product to trace user-mode API calls on Windows. SpyStudio is an Application tracer which shows and interprets calls, displaying the results in a structured way which is easy for any IT professional to understand.
This software allows you to monitor and/or modify any function of a process for any calling convention (stdcall or cdecl).
strace is a diagnostic, debugging and instructional userspace utility for Linux. It is used to monitor interactions between processes and the Linux kernel, which include system calls, signal deliveries, and changes of process state.
ltrace intercepts and records dynamic library calls which are called by an executed process and the signals received by that process. It can also intercept and print the system calls executed by the program. Used for debugging.
Libcsdbg is a C++ exception stack tracer. When an exception is thrown, caught and handled, libcsdbg offers the tools to create and process the exception stack trace, the path the exception has propagated up the call stack, unwinding it, up to the section were it was handled.
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Only monitors (some) system calls, not win32 APIs.