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Best System Informer Alternatives in 2026

Free#10 of 26 in Process Monitoring Software

The top System Informer alternatives are Glances, PM2 and Monit: 15 process monitoring software our editors would look at instead of System Informer, in our ranking order.

8.4/10Editor score
System Informer8.4 Try System Informer

System Informer: A free, open-source Windows utility for detailed process, resource, disk, and network inspection. Where it falls short: runs only on windows..

Switching from System Informer? For most process monitoring software buyers the best System Informer alternative is Glances, built for cross-platform and remote infrastructure monitoring. On a budget, Owlette starts at $20/device/mo. AppControl offers the most history retention (72 days).

Why People Look for a System Informer Alternative

  • Runs only on Windows
  • Does not provide remote monitoring
  • Support is community-based
  • No remote monitoring — 3 of the alternatives below have it

Quick Picks by What You Need

All 15 System Informer Alternatives, Ranked

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

  1. Glances

    Best forCross-platform and remote infrastructure monitoring

    • Better than System Informer:
    • Editor score 9.4 vs 8.4

    A broad, free monitoring toolkit for cross-platform and self-hosted infrastructure.

    9.4/10★★★★★
    Visit Glances
  2. PM2

    Best forNode.js application process operations

    • Better than System Informer:
    • Remote monitoring
    • Editor score 9.2 vs 8.4

    A capable Node.js process manager with deeper monitoring in paid tiers.

    • Remote monitoring
    • Process alerting
    • Activity logs
    Free plan Our PM2 verdict → Visit PM2
    9.2/10★★★★★
    Visit PM2
  3. Monit

    Best forSelf-hosted service health and auto-recovery

    • Better than System Informer:
    • Editor score 9.1 vs 8.4

    A focused self-hosted monitor for service health, system checks, and automatic recovery.

    • Service monitoring
    Free plan Our Monit verdict → Visit Monit
    9.1/10★★★★★
    Visit Monit
  4. Best forSelf-hosted process supervision with APIs

    • Better than System Informer:
    • Remote monitoring
    • Editor score 9.0 vs 8.4

    A focused open-source supervisor for restarting, grouping, logging, and controlling processes.

    • Remote monitoring
    • Process alerting
    • Activity logs
    9.0/10★★★★☆
    Visit Supervisor
  5. Best forWindows users needing automated process control

    • Better than System Informer:
    • Editor score 8.9 vs 8.4

    A Windows-focused controller for automated process rules, monitoring, and resource management.

    • Activity logs
    • Process controls
    Free plan · 30-day trial Our Process Lasso verdict → Visit Process Lasso
    8.9/10★★★★☆
    Visit Process Lasso
  6. Best forFree Windows monitoring with controls and alerts

    • Better than System Informer:
    • Editor score 8.8 vs 8.4

    Free Windows monitoring with three-day history, alerts, and application controls.

    • Process alerting
    • Service monitoring
    • Activity logs
    8.8/10★★★★☆
    Visit AppControl
  7. atop

    Best forLinux administrators needing historical process data

    • Better than System Informer:
    • Editor score 8.7 vs 8.4

    A focused open-source monitor for detailed Linux process history and analysis.

    • Activity logs
    8.7/10★★★★☆
    Visit Atoptool.nl
  8. Best forDeep Windows and Linux process inspection

    • Better than System Informer:
    • Editor score 8.6 vs 8.4

    Deep live process inspection for technical users, without alerting, history, or remote monitoring.

    • Service monitoring
    • Process controls
    8.6/10★★★★☆
    Visit TaskExplorer
  9. Best forWindows developers tracking performance regressions

    • Better than System Informer:
    • Editor score 8.5 vs 8.4

    A focused Windows tool for finding performance regressions across development runs.

    • Process alerting
    • Activity logs
    • Process controls
    8.5/10★★★★☆
    Visit Ambih Monitor
  10. Owlette

    Best forRemote Windows process operations

    • Better than System Informer:
    • Remote monitoring

    A focused remote operations tool for monitoring, controlling, and recovering Windows processes.

    • Remote monitoring
    • Process alerting
    • Activity logs
    8.3/10★★★★☆
    Visit Owlette
  11. runit

    Best forLightweight Unix service supervision

    A focused, free Unix service supervisor for availability, control, and logs—not broad analytics.

    • Service monitoring
    • Activity logs
    • Process controls
    Free plan Our runit verdict → Visit runit
    8.2/10★★★★☆
    Visit runit
  12. s6

    Best forMinimal POSIX daemon supervision

    A focused self-hosted toolkit for supervising long-running POSIX services.

    • Service monitoring
    • Activity logs
    • Process controls
    Open source Our s6 verdict → Visit skarnet.org
    8.1/10★★★★☆
    Visit skarnet.org
  13. rproc

    Best forLinux process and systemd inspection

    A focused Linux desktop monitor for processes, resources, charts, and systemd services.

    • Service monitoring
    • Process controls
    Open source Our rproc verdict → Visit rproc
    8.0/10★★★★☆
    Visit rproc
  14. Best forFree cross-platform interactive system monitoring

    A free, open-source monitor for interactive local system and process visibility.

    • Process controls
    7.9/10★★★★☆
    Visit bottom
  15. btop

    Best forCustomizable terminal monitoring on Unix systems

    A free, open-source terminal monitor with detailed local process controls.

    • Process controls
    Free plan Our btop verdict → Visit btop
    7.8/10★★★★☆
    Visit btop

System Informer Alternatives: Common Questions

What is the best alternative to System Informer?

Glances: #1 in our Process Monitoring Software ranking, with an editor score of 9.4 out of 10. A broad, free monitoring toolkit for cross-platform and self-hosted infrastructure.

Is there a free alternative to System Informer?

Yes. Glances, PM2, Monit, Supervisor and Process Lasso have a free plan or a free tier (14 of the 15 alternatives on this page).

Why do people look for System Informer alternatives?

Runs only on Windows; Does not provide remote monitoring; Support is community-based.

Which System Informer alternative has the most history retention?

AppControl, with 72 days.

How do I switch from System Informer?

Export your data from System Informer (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel System Informer.

How to Switch from System Informer

  1. Export your data from System Informer (most tools have an export in their settings).
  2. Sign up for the alternative; start on its free plan or trial if it has one.
  3. Import your export and set up the integrations your team relies on.
  4. Run both side by side for a short while, then cancel System Informer.

System Informer vs Each Alternative

#ToolFree planPaid fromSupported platformsService monitoringScore
10System InformerYesFreeWindowsYes8.4
1GlancesYesFree9.4
2PM2YesLinux, macOS, Windows, web dashboard9.2
3MonitYesFreeYes9.1
4SupervisorYesFreeLinux, macOS, self-hosted Unix-like systems, web interface, XML-RPC API9.0
5Process LassoYes$24.95/device/yrWindows 7, 8, 10, 11; Windows Server 2012-20258.9
6AppControlYesFreeWindowsYes8.8
7atopYesFreelinux8.7
8TaskExplorerFreeWindows, LinuxYes8.6
9Ambih MonitorYes$65/yrWindowsNo8.5
10OwletteNo$20/device/moWindows8.3
11runitYesFreeGNU/Linux, *BSD, MacOSX, Solaris, other adaptable Unix systemsYes8.2
12s6FreePOSIX-compliant systemsYes8.1
13rprocFreeLinux (X11 or Wayland)Yes8.0
14bottom (btm)YesFreeLinux, macOS, Windows7.9
15btopYesFreeLinux, macOS, FreeBSD, NetBSD, OpenBSD7.8

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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