System Informer
System Informer is a Windows utility for monitoring system resources, debugging software, and detecting malware.
What System Informer is
System Informer is a Windows utility for monitoring system resources, debugging software, and detecting malware. Graphs and statistics help identify resource-heavy or runaway processes, while network views show connected programs and real-time usage. It also reports disk activity and GPU use by process. For troubleshooting, it can show detailed stack traces with kernel-mode, WOW64, and .NET support. Handle and DLL searches can reveal which processes are using a file; closing a handle can cause data loss or corruption. The service tools let users create, edit, and control services, with driver entries shown beside user-mode services by default. System Informer has light and dark themes and options for modern icons. It is described as portable, with no installation required, and is available as an installer, portable binaries, Microsoft Store package, or Winget command. The software is free for Windows 10 or 11, in 32-bit or 64-bit versions. ExtendedTools disk and network details require administrative rights.
Good
- Free software for Windows 10 or 11.
- Graphs track resource-heavy and runaway processes.
- Shows real-time network usage and disk activity.
- Detailed stack traces support kernel-mode, WOW64, and .NET.
- Portable binaries are available without installation.
Watch out
- ExtendedTools disk and network details require administrator rights.
- Closing a handle may cause data loss or corruption.
- Available for Windows only.
Who it suits
System Informer suits advanced Windows users and developers who need process, service, network, or debugging details. Its process controls and handle searches may help with investigation, though closing a handle carries a corruption or data-loss risk.
Verdict
System Informer combines process monitoring, service controls, and debugging information in a free Windows utility. Keep its administrator requirement and handle-closing risk in mind when using its deeper inspection tools.
Plans and prices
From System Informer's own pricing page, checked 3 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| System Informer | Free | Free software · Windows 10 or 11 · 32-bit or 64-bit |
The facts
Each one read from System Informer's own pages, with the date it was checked.
What it does
- Audience and license
- The About page lists advanced end users and developers as the audience and identifies the license as MIT.checked 3 Oct 2026
- Debugging
- It displays detailed stack traces with kernel-mode, WOW64, and .NET support.checked 3 Oct 2026
- Disk and GPU
- It provides real-time disk access and usage information, plus GPU usage by process.checked 3 Oct 2026
- Distribution
- Downloads are offered as a setup installer, portable binaries, Microsoft Store package, and Winget install command.checked 3 Oct 2026
- Handle search
- It can find processes using a file by searching handles or DLLs; closing a handle may cause data loss or corruption.checked 3 Oct 2026
- Network visibility
- It shows programs with active network connections and provides real-time network usage information.checked 3 Oct 2026
- Permissions limit
- Disk and network information from the ExtendedTools plugin is available only when System Informer runs with administrative rights.checked 3 Oct 2026
- Portability
- The readme describes System Informer as small and portable, with no installation required.checked 3 Oct 2026
- Process monitoring
- Graphs and statistics help track resource-heavy and runaway processes.checked 3 Oct 2026
- Purpose
- System Informer monitors system resources, helps debug software, and detects malware.checked 3 Oct 2026
- Services
- It can create, edit, and control services, and shows driver entries alongside user-mode services by default.checked 3 Oct 2026
- Support
- The project directs users to GitHub to ask questions, report bugs, or suggest features.checked 3 Oct 2026
- Themes
- It supports light and dark themes and offers options for modern icons.checked 3 Oct 2026
The company
- Founded
- 2008checked 28 Sep 2026
- Maker
- System Informer is brought to users by Winsider Seminars & Solutions, Inc.; the About page says it was created in 2008 by Wen Jia Liu.checked 3 Oct 2026
Where it runs
- Platforms
- The downloads page lists Windows 10 and Windows 11, in 32-bit or 64-bit versions.checked 3 Oct 2026
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