async-profiler vs YourKit .NET Profiler
async-profiler
github.comYourKit .NET Profiler
yourkit.comSide by side
| Figure | async-profiler | YourKit .NET Profiler |
|---|---|---|
| Price from | Free | $8.25/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | — | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Plans published | 1 | 10 |
| Spec score · Profiling Software | 8.1 (#7) | 7.9 (#11) |
| Purpose | async-profiler is a low-overhead sampling profiler for Java that avoids the safepoint bias problem. | YourKit .NET Profiler profiles performance and memory in .NET and .NET Core applications. |
Plans
YourKit .NET Profiler
- Open source and free licenseFree
- Seat — annual subscription, single-seat$99 a year
- Seat — perpetual, single-seat$129, paid once
- Seat — annual subscription, five-seat$299 a year
- Seat — perpetual, five-seat$389, paid once
- Floating — annual subscription, single-user$499 a year
- Floating — perpetual, single-user$649, paid once
- Floating — annual subscription, five-user$1,499 a year
- Floating — perpetual, five-user$1,949, paid once
- EnterprisePriced on request
In their own words
async-profiler
async-profiler is a free, self-hosted sampling profiler for Java designed to keep overhead low and avoid safepoint bias. It works with OpenJDK and other runtimes based on the HotSpot JVM, and stack traces can include non-Java threads as well as native and kernel frames. It profiles CPU time, Java-heap and native-memory allocations, memory leaks, contended locks, and hardware or software performance counters. Documented modes include CPU, allocation, wall-clock, Java-method, and multiple-events profiling. Results can be saved as collapsed stacks, flame graphs, HTML tree views, or text; an interactive Flame Graph can be viewed in a browser. Officially maintained builds are available for Linux and macOS on x64 and arm64. Developers can use the Java API as a Maven dependency, and IntelliJ IDEA includes async-profiler in its Java Profiler settings. It can profile Java processes in Docker or LXC from inside a container or from the host. Building it requires make, GCC 7.5.0 or later or Clang 7.0.0 or later, static libstdc++, and JDK 11 or later.
YourKit .NET Profiler
YourKit.NET Profiler analyzes CPU performance and memory use in.NET and.NET Core applications. It can profile servers, Windows services, and other.NET applications locally or remotely in development, testing, and production. CPU results appear as call trees or hot spots; memory tools visualize the object heap and object graph. Plugins integrate with Microsoft Visual Studio and JetBrains Rider. The profiler shows slow SQL queries and ASPX requests and supports MongoDB and Cassandra. More than 20 inspections can identify duplicated objects, unclosed database connections, inefficient collections, and I/O operations. Remote profiling can create an SSH tunnel to an application on another machine. A.NET API manages profiling modes and captures snapshots, while command-line tools can automate profiling and performance monitoring in continuous integration. Version 2026.9 supports.NET 5 through.NET 10 and.NET Framework 4.x, with Linux, macOS, and Windows downloads. A single-seat annual subscription costs $99 a year; a perpetual single-seat license costs $129 as a one-time purchase. A 15-day trial is listed, and qualifying open source project contributors and Microsoft MVPs can contact sales regarding a free license.