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PerfView vs dotTrace: catalog facts
PerfView	dotTrace
Free Free and open source from Microsoft.	Paid Commercial license with a free 30-day trial, also included in dotUltimate.
Windows	Windows
Analyses both CPU and memory performance issues Free tool maintained by Microsoft	Timeline mode for UI freezes, garbage collection and I/O problems Profiles SQL queries and HTTP requests
Windows only Steep learning curve for people new to profiling	Paid after the 30-day trial Focused on .NET only; memory profiling is a separate product, dotMemory
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License: Proprietary
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.