Markup & Validate is the review station for AI-generated drawing sets.
AI can now produce a full set of construction drawings in minutes. Nothing checks them. Markup tools were built for human drawings, and model checkers review the model, not the set that actually gets issued.
Here's how it works. Upload your PDF drawing set and redline it in the browser with familiar markup tools: revision clouds, arrows, callouts, highlights. Then run it against a 15-rule AEC standards profile covering title block completeness, sheet numbering, required sheets, text heights, annotation, tags, dimensions, schedules, revisions, and drawing coordination.
Every finding needs a named reviewer and written evidence before it closes. The sign-off gate stays blocked while any markup, finding, or verification task is open. When the gate clears, you sign off and export the annotated PDF, the review JSON, and the CSV record.
It's deliberately honest about limits. Half the rules are human-verification tasks because software can't certify a drawing. The product's job is making human judgment traceable.
Free to start at markupvalidate.com. Two drawing files a month, no card required. Paid plans from $5/month when your reviews grow.