Memory Scanner

Free plan Windows

What Memory Scanner is

Memory Scanner is a free, open-source Windows utility for scanning applications that capture the mouse or cannot be paused, such as games. It reads a running program’s memory from outside the target binary using Windows process access functions; it does not inject code or attach a debugger. The scanner supports both 32-bit and 64-bit binaries and can inspect static memory, volatile memory, or both. It reads committed pages with specified read or write permissions, excluding guarded or inaccessible pages. Supported values include signed and unsigned integers from 8 to 64 bits, floats, doubles, booleans, strings up to 64 characters, and 2D or 3D float structures. Results can be compared with earlier values or user input using changed, unchanged, equality, inequality, and ordering comparisons. Found values can be stored and overwritten once or repeatedly several times per second. The console menu supports keyboard input, including Ctrl+NumPad. The project uses premake5 and documents generating a Visual Studio 2019 solution; a Visual Studio 2022 solution is also included. Scans exceeding available allocatable memory can cause a segmentation fault because the program does not check scan-buffer allocation failures.

Who it suits

Memory Scanner suits Windows users who need to inspect memory in applications that cannot be paused or capture the mouse. It supports both 32-bit and 64-bit binaries and a range of value types.

What it does well

Scans 32-bit and 64-bit binaries
Does not inject code or attach a debugger
Supports multiple numeric, text, and structure types
Found values can be overwritten repeatedly

What to know first

Excessive scans can cause a segmentation fault
Repository lists no releases or packages

Limits

The program does not check scan-buffer allocation failures, so a scan larger than available allocatable memory can cause a segmentation fault. The listed platform is Windows.

Getting started

Open the project website on GitHub.
Use the project’s premake5 build system.
Generate a Visual Studio 2019 solution using the documented process, or use the included Visual Studio 2022 solution.
Build for Windows and scan a supported 32-bit or 64-bit binary.

Verdict

Memory Scanner offers value comparisons and editing through a console interface, without injecting code or attaching a debugger. Be aware that scans exceeding available allocatable memory can crash the program.

Questions

Is Memory Scanner free?

Yes. Its pricing model is free, and it is open source under the BSD-3-Clause license.

Which operating systems does it support?

Windows is the listed platform.

Does it attach a debugger or inject code?

No. It reads and writes the running process from outside the target binary without injecting code or attaching a debugger.

What kinds of values can it scan?

It supports signed and unsigned integers from 8 to 64 bits, float, double, bool, strings up to 64 characters, and 2D and 3D float structures.

How can I build the project?

The project uses premake5 and documents generating a Visual Studio 2019 solution. A Visual Studio 2022 solution is also provided.

Facts from Memory Scanner's own pages

Binary support: The scanner works with 32-bit and 64-bit binaries. · github.com, 8 Oct 2026
Build requirements: The project uses premake5 and documents generating a Visual Studio 2019 solution; it also says a plain Visual Studio 2022 solution is included. · github.com, 8 Oct 2026
Build system: The project uses premake5 and documents generating a Visual Studio 2019 solution, with a Visual Studio 2022 solution also provided. · github.com, 8 Oct 2026
Console controls: It uses console-menu for keyboard control, including Ctrl+NumPad input. · github.com, 8 Oct 2026
Data types: Supported types include signed and unsigned integers from 8 to 64 bits, float, double, bool, strings up to 64 characters, and 2D and 3D float structures. · github.com, 8 Oct 2026
Distribution: The repository page lists no releases or packages. · github.com, 8 Oct 2026
Extensibility: New data types can be added by implementing the Datatype interface and registering the type in MenuInstance::init(). · github.com, 8 Oct 2026
External operation: It scans from outside the target binary using OpenProcess, ReadProcessMemory, and WriteProcessMemory, without injecting code or attaching a debugger. · github.com, 8 Oct 2026
How it works: It scans from outside the target binary, reads the executable file, and uses OpenProcess, ReadProcessMemory, and WriteProcessMemory on the running process. · github.com, 8 Oct 2026
Interface controls: The console interface can be controlled normally or with CTRL + NumPad using the console-menu component. · github.com, 8 Oct 2026
Known limitation: The program does not check scan-buffer allocation failures, so scans exceeding available allocatable memory can cause a segmentation fault. · github.com, 8 Oct 2026
License: The repository identifies its license as BSD-3-Clause. · github.com, 8 Oct 2026
Memory page filtering: The scanner reads committed pages marked PAGE_READWRITE or PAGE_EXECUTE_READWRITE, excluding pages marked PAGE_GUARD or PAGE_NOACCESS. · github.com, 8 Oct 2026
Memory selection: It can scan static memory, volatile memory, or both, and reads only committed pages with specified read/write permissions that are not guarded or inaccessible. · github.com, 8 Oct 2026
No injection or debugger: The project says it does not inject source code or attach a debugger. · github.com, 8 Oct 2026
Overwrite values: Found values can be stored and overwritten once or repeatedly several times per second. · github.com, 8 Oct 2026
Purpose: Memory Scanner is a small utility for scanning applications that capture the mouse or cannot be paused, such as games. · github.com, 8 Oct 2026
Supported data: Supported types include signed and unsigned integers from 8 to 64 bits, float, double, bool, strings up to 64 characters, and 2D and 3D float structures. · github.com, 8 Oct 2026
Value comparisons: Found values can be compared with their prior values or user input using changed, unchanged, equal, unequal, and ordering comparisons. · github.com, 8 Oct 2026
Value editing: Found values can be stored and overwritten once or repeatedly several times per second. · github.com, 8 Oct 2026

Where Memory Scanner stands on Freedom251

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