This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
CheerpJ is a full OpenJDK distribution for the browser, compatible with Java 8, 11, 17, 21 and 25. Build with Java, or run the applications you already have.
Running unmodified JARs as-is is the part that stands out to me — no porting step is a huge deal for the old enterprise and classroom Java apps that still work but lost their delivery mechanism when applets died. Supporting everything from Java 8 to 25 in one browser runtime is ambitious. Curious how startup time feels on a really large Swing app, that's usually where browser runtimes live or die.
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About CheerpJ on Product Hunt
“Real Java in the browser.”
CheerpJ was submitted on Product Hunt and earned 7 upvotes and 1 comments, placing #31 on the daily leaderboard. CheerpJ is a full OpenJDK distribution for the browser, compatible with Java 8, 11, 17, 21 and 25. Build with Java, or run the applications you already have.
CheerpJ was featured in Browser Extensions (5.5k followers), Open Source (69k followers), Developer Tools (522.6k followers) and GitHub (41.5k followers) on Product Hunt. Together, these topics include over 146.5k products, making this a competitive space to launch in.
Who hunted CheerpJ?
CheerpJ was hunted by Donkey. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how CheerpJ stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Donkey
Running unmodified JARs as-is is the part that stands out to me — no porting step is a huge deal for the old enterprise and classroom Java apps that still work but lost their delivery mechanism when applets died. Supporting everything from Java 8 to 25 in one browser runtime is ambitious. Curious how startup time feels on a really large Swing app, that's usually where browser runtimes live or die.