Jango lets you test the parts of your app that need more than one person. It gives your app a group of AI users, each with its own browser, account, goals and memory. Point Jango at your dev URL and watch them sign in and interact with each other in real time. Direct them, join in as yourself, or take control of any user's screen. At the end you get a report with actions, errors and screenshots. Use your own AI key or Jango's managed AI. Available on Mac.
Hey Product Hunt 👋 I built Jango because testing multi-user features alone is painful. You end up juggling five browser windows and fake accounts. Jango runs a group of AI users, each with their own login and memory, so you can see how your app holds up when several people use it at once. I'd love your feedback!
Which Vercel product did you use? What new capability did it give your team, and how did that shape the product you launched?
does this work only with web apps or can it drive mobile too? most of my multi-user bugs live in iOS, like push arriving on one device while the other user is mid-action. would love to point it at a simulator instead of a URL
the memory-across-sessions detail is what makes this more than a scripted test runner. one thing I'm curious about, since the agents each have their own goals and can act in real time, do you ever get genuine race conditions out of it, like two agents both grabbing the last item in a cart or both trying to claim the same slot at the same instant, or does it stay mostly sequential in practice even with multiple browsers running
I like that you can jump in yourself instead of just watching the agents run.
Having screenshots alongside the errors should make failed tests much easier to dig into.
I can see this being handy for chat, collaboration, and anything where one user's action affects another.
Being able to take over one of the users when something goes wrong sounds genuinely useful.
The idea of giving each user their own browser and memory is really interesting.
This solves a pretty specific headache. Testing two or three accounts at once gets annoying fast.
About Jango on Product Hunt
“Test multi-user apps with AI agents that act like real users”
Jango launched on Product Hunt on September 25th, 2026 and earned 84 upvotes and 15 comments, placing #12 on the daily leaderboard. Jango lets you test the parts of your app that need more than one person. It gives your app a group of AI users, each with its own browser, account, goals and memory. Point Jango at your dev URL and watch them sign in and interact with each other in real time. Direct them, join in as yourself, or take control of any user's screen. At the end you get a report with actions, errors and screenshots. Use your own AI key or Jango's managed AI. Available on Mac.
Jango was featured in Developer Tools (520.1k followers), Artificial Intelligence (479.5k followers) and Vercel Day (40 followers) on Product Hunt. Together, these topics include over 210.5k products, making this a competitive space to launch in.
Who hunted Jango?
Jango was hunted by Emmanuel Adesola. 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 Jango stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Emmanuel Adesola