1
Microsoft Error Lookup
learn.microsoft.com/en-us/windows/win32/debug/…Same kind of website
Microsoft Error Lookup Tool explains hexadecimal error codes, with usage instructions provided in Microsoft Learn.
Alternatives
The Best Sysinternals Alternatives in 2026
3 alternatives1 free · 1 open source
Looking for something like Sysinternals? Here are 3 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 1 are open source.
About Sysinternalslearn.microsoft.com/en-us/sysinternals
VisitMicrosoft Sysinternals provides a library of Windows utilities, with learning resources, downloads, and support information.
Top picks at a glance
First suggestionMicrosoft Error LookupMicrosoft Error Lookup Tool explains hexadecimal error…Free or freemium optionPowerToysMicrosoft PowerToys bundles Windows utilities such as…Open source optionPower ToysMicrosoft PowerToys is a collection of Windows utilities…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Microsoft Error Lookup | — | Not stated | Web, Windows |
| 2 | PowerToys | Free | Not stated | Web, Windows |
| 3 | Power Toys | — | Yes | Windows |
All Sysinternals alternatives
2
Same kind of website · free
Microsoft PowerToys bundles Windows utilities such as FancyZones, PowerToys Run, Color Picker, and PowerRename for Windows 10 and 11.
3
Open source
Microsoft PowerToys is a collection of Windows utilities for productivity and customization, according to its repository description.
No alternatives match this filter.
Alternatives to similar tools
What is the best alternative to Sysinternals?
Based on features, tags and platforms, the closest alternatives to Sysinternals are Microsoft Error Lookup, PowerToys, and Power Toys.
Is there a free alternative to Sysinternals?
Yes. PowerToys is free or offer a free plan.
Are there open-source alternatives to Sysinternals?
Yes: Power Toys.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative