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A free, powerful, multi-purpose Windows tool for monitoring system resources, debugging software, and detecting malware, with portable operation support.

v4.0.26241.138
Published at
Aug 29, 2026
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Synced at
Oct 4, 2026

Latest release

v4.0.26241.138Aug 29, 2026, 01:54 AM
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README

Project Overview

System Informer is a free, powerful, multi-purpose tool that helps you monitor system resources, debug software, and detect malware. Brought to you by Winsider Seminars & Solutions, Inc., it supports Windows 10 or higher, 32-bit or 64-bit.

Key Features

  • Detailed system activity overview with highlighting
  • Graphs and statistics for tracking resource hogs and runaway processes
  • Discover which processes are using a specific file
  • View active network connections and close them if needed
  • Real-time disk access information
  • Detailed stack traces with kernel-mode, WOW64, and .NET support
  • Service management (create, edit, and control services)
  • Small, portable, and no installation required

Target Audience

  • System administrators and IT professionals
  • Software developers and debuggers
  • Security researchers and malware analysts

Quick Start

  1. Download the latest version from GitHub Releases
  2. Run SystemInformer.exe directly (portable, no installation required)
  3. To save settings to a USB drive, create a blank file named SystemInformer.exe.settings.xml

Core Advantages

  • Free and open-source (MIT licensed)
  • Portable with no installation required
  • Comprehensive system debugging and monitoring tool
  • Built by Windows Internals experts

System Requirements

  • OS: Windows 10 or higher, 32-bit or 64-bit

Release history

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