Specimen V · 03
diagrams.net / draw.io
free
Apache 2.0 canvas-based diagramming
No Enterprise gating. Browser + desktop, no signup. Go-to for architecture sketches, C4.
| Habitat | Tools |
| Access tier | free |
| Relevance to stack | medium |
| Last active signal | v30.0.4 2026-05-27 |
| Verified alive | yes — pressed 2026 |
| Specimen no. | V · 03 |
| Live habitat | https://app.diagrams.net |