Mvis: Memory Debugging Made Simple and Accessible

Source: Dev.to

Introduction

Debugging memory leaks has always been one of those tasks developers dread.
Tools like Valgrind or WinDbg are powerful, but they’re either platform‑specific or too complex for quick diagnostics. Mvis is a Rust‑based memory visualizer and leak detector that aims to give developers fast, actionable answers.

Why Mvis

Mvis is built around three guiding principles:

• Simplicity – One command should be enough to get useful insights.
• Accessibility – Debugging shouldn’t be locked behind steep learning curves.
• Cross‑platform – Whether you’re on Windows or Linux, the workflow feels the same.

“One command. All platforms. No configuration hell.”

What It Can Do

Even in its early stage, Mvis already supports:

• Process scanning – Inspect allocations of active processes.
• Heap‑level analysis – See heap structures in detail.
• DLL tracking – Monitor loaded libraries.
• Leak detection – Identify processes with growing, unreleased allocations.
• Stack tracing – Capture call stacks to pinpoint allocation sources (Linux).

Supported OS: Windows and Linux.

Quick Usage Examples

# visualize memory map
mvis scan myapp.exe -a

# detect leaks
mvis leak leaking_app.exe 10

# multi‑sample leak detection
mvis leak-m myapp.exe 10 3

Outputs are clear and exportable to JSON (scan), making analysis and visualization easy.

Example: Leak Detection

mvis leak leaking_app.exe 10

Insights

One of the first problems encountered was how to make Mvis work on both Windows and Linux. The solution is simple: platform abstraction. Mvis defines abstractions for memory regions and heap blocks, so the core logic doesn’t depend on OS‑specific quirks. This design makes it straightforward to extend support to other platforms in the future, as long as they implement the same abstraction layer.

Roadmap

Mvis is still early but functional. Upcoming features include:

• TUI frontend for heap analysis (lightweight by design).
• Heap fragmentation visualization.
• Real‑time heap scanning.
• macOS support.
• Performance improvements.

Try It Out

The project is open source on GitHub:

GitHub – SickleFire / m-vis

Feel free to contribute, provide feedback, or suggest ideas. Let’s make memory debugging easier for everyone.