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Javadoc vs py-spy

Javadoc

oracle.com

py-spy

github.com

Side by side

FigureJavadocpy-spy
Price fromFreeFree
Free planYesYes
Free trial——
Open source——
WebYes—
WindowsYesYes
macOSYesYes
LinuxYesYes
Plans published11
Spec score · Profiling Software7.9 (#9)7.4 (#21)
PurposeJavadoc generates HTML API documentation pages from Java source files.py-spy is a sampling profiler for Python programs that visualizes where a program spends time without restarting it or changing its code.

Plans

Javadoc

  • Javadoc (included with JDK 25)Free

Javadoc pricing →

py-spy

  • py-spyFree

py-spy pricing →

In their own words

Javadoc

Javadoc creates HTML API documentation from Java source files and is installed with the Java Development Kit (JDK). Its standard doclet describes public and protected Java types and members, including classes, interfaces, constructors, methods, and fields. It can process packages, individual source files, or both, with an option to include subpackages recursively. Alternate doclets can change the content and format of the generated output, while taglets add support for custom tags in documentation comments. The standard doclet includes DocLint to help identify common comment problems, but DocLint does not check conformance or repair errors. Oracle cautions that generated output may pose issues if it is non-conformant or contains executable content such as JavaScript. JDK 25 downloads are listed for Linux, macOS, and Windows. JDK 25 binaries are free under Oracle No-Fee Terms and Conditions through September 2028; later updates use a license that may require fees for production use beyond limited free grants.

Visit oracle.com

py-spy

py-spy has no write-up on Specifiction yet; its figures are above.

Visit github.com