Hey Product Hunt! 👋

I'm SenYu, maker of OnUml – excited to launch here! ✨

OnUml is an AI-powered online tool to create Mermaid UML diagrams fast, without the usual friction.

Ever get stuck on Mermaid syntax or tired of starting diagrams from zero? I built OnUml to fix that!

Key Highlights:

🤖 AI Chat-to-Diagram: Just describe the UML diagram you need in plain English, and let AI generate the Mermaid code!

🛠️ AI Syntax Fixer: Got broken Mermaid code? Let AI try to automatically find and fix common errors for you.

⚡ Live Preview: See your diagram update instantly as you type.

🚫 No Signup Needed: Jump right in and start creating. Seriously, no login required!

🗂️ Local Save & Folders: Your work stays in your browser, organized how you like it.

It's built for developers, designers, or anyone who needs to visualize systems quickly using Mermaid.

I built this to scratch my own itch and hope it's helpful for you too! It's still early days, so your feedback would be amazing. 🙏

Give it a spin and let me know what you think!

Thanks for checking out OnUml! 😊

Best,

SenYu

OnUml

AI-powered UML diagram generator for free