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.NET vs Eclipse Temurin: catalog facts
.NET	Eclipse Temurin
Free Free and open source.	Free Free to download and use with no licensing fees.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Cross-platform on Windows, Linux and macOS Covers web, desktop, mobile, cloud and games	Java SE TCK certified OpenJDK builds Built from open-source scripts and infrastructure
Parts of the wider ecosystem lean towards Microsoft tools and Azure Large install compared with lighter language runtimes	Provides the runtime and JDK only, not an IDE or build tools
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-2.0 WITH Classpath-exception-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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