ASCII diagramming tools (Mockdown, Wiretext, Monodraw) revive 1970s-80s TUI sensibilities for modern web, AI workflows, and intentional constraint practice.
Key Takeaways
Three active tools in the space: Mockdown (web + mobile), Wiretext (web, desktop only), Monodraw (Mac app) – each targeting low-key diagramming embeddable in source code.
The author’s thesis: constraint practice grows more valuable as AI capabilities expand – self-imposed limits will be used to make things harder, not just simpler.
Monospace plain text’s durability comes from two properties: portable file format and text-editing as a deeply known, high-leverage interface.
Historical lineage runs through TUIs and Turbo Vision; these tools add mouse/trackpad affordances, web access, and modern performance on top of that foundation.
“ASCII” is used colloquially here – same way “GIF” refers to looping animations regardless of actual format.
