AI Diagram Maker vs OnUML
| AI Diagram Maker | OnUML | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | Web |
| Free plan | Yes | Yes |
| Mermaid support | Yes | Yes |
| Diagram import | Yes | — |
| Platform | web | web |
| Export formats | PNG, SVG, D2 diagram code | PNG, SVG |
Both are listed in Best AI Diagram Generators. On The Geeks Club, AI Diagram Maker scores higher on our published basis.