What's New

Howdy folks 👋🏼

If you've used yUML for a while, you might know it started out as a 4-day proof of concept back in 2008. After hitting number one on Hacker News, and getting 24,000 new users in just 2 days, it's had a pretty good run.

Even today, we still serve over 150,000 diagrams a day (mostly free), so I'm pretty proud to have created a useful gift to the software community.

Seventeen years later in 2026, I thought it might be time for a bit of a refresh :)

For now, just a few improvements:

• Much faster rendering in the editor
• Much faster rendering on the server side for your CI scripts
• Draw sequence and state diagrams, in edition to existing Class, Use Case and Activity diagrams
• Visualise your UX user journeys with User Journey Maps (needs a bit of work)
• I've retained the old Scruffy and Plain looks, but also added Clean and Napkin (the latter being a bit of fun)
• You also get dark themes with Midnight and Blueprint
• New POST API for CI and scripts

You'll also notice there's a few new subscription plans. Massive thanks to those of you who've subscribed over the years. To make it better for everyone, we're asking people to subscribe to use in their professional CI/Automation pipelines. This will help us fund future developments!

Enjoy yuml v2, and feedback welcome as always.

Tobin