Eclipse Collections passes one million downloads in a single month

Milestones happen. Occasionally they’re worth celebrating. Thank you!

Eclipse Collections had over one million downloads from Maven Central in March 2025

I usually like to pay more attention to yearly trends than individual monthly stats, but passing one million downloads in one month from Maven Central for the open source Eclipse Collections Java library hits a little different. It’s a nice milestone for the (almost) tenth year of Eclipse Collections at the Eclipse Foundation.

I’ll share one more image to keep this blog short and sweet. Eclipse Collections passed 2,500 stars on GitHub recently as well. GitHub stars are a vanity metric, but it’s a nice feeling when a few folks drop by to say hello with a star. A few years ago, Eclipse Collections finally caught up to and passed GS Collections with GitHub stars. GS Collections was the predecessor to Eclipse Collections.

Thank you to all the users, contributors, committers, and star providers!

Thanks for reading!

I am the creator of and committer for the Eclipse Collections OSS project, which is managed at the Eclipse Foundation. Eclipse Collections is open for contributions. I am also the author of the book, Eclipse Collections Categorically: Level up your programming game.