VellumDrop

Elevate your architectural workflow

VellumDrop provides the modern infrastructure for architects to organize projects, collaborate on blueprints, and share access securely.

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Built for the demands of the modern firm

A seamless experience designed to bring your team and your plans together.

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Lightning Fast Loads

We convert heavy PDFs into an ultra-optimized image format that loads directly on your device's GPU. Experience instant, seamless panning and zooming on blueprints of any size.

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True Offline Access

On the job site with zero bars? No problem. VellumDrop's robust offline mode lets you view plans, add annotations, and sync automatically when you reconnect.

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Integrated RFIs

Manage Requests for Information directly on your plans. Link questions to specific blueprint callouts and resolve ambiguities faster than ever.

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Document Versioning

Maintain a complete history of every blueprint iteration. Instantly switch between versions to track changes throughout the project lifecycle.

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Smart Diffing

Visually compare two versions of a drawing. Our intelligent alignment engine detects changes even if the floorplan was moved around on the page.

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Auto-Calibrated Measurements

VellumDrop detects the scale of your drawings automatically. Say goodbye to manual calibration—just point, click, and get accurate takeoffs instantly.

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AI Photo Tagging

Our integrated Computer Vision analyzes site photos automatically. Find exactly what you need with AI-generated tags and intelligent search.

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Universal App Support

Work where you are. VellumDrop runs flawlessly on the web, iOS, and Android. Your projects stay in perfect sync across the office and the field.

Enterprise-grade infrastructure.

VellumDrop isn't just another viewer. It's powered by a dedicated intelligence microservice running advanced optical character recognition (OCR) and deep learning models. We handle the heavy lifting asynchronously, so your experience stays responsive, fluid, and incredibly fast.

  • check_circle Next-Gen Rendering Pipeline reduces payload size by up to 80% and leverages hardware acceleration for buttery-smooth panning.
  • check_circle Globally Consistent Database ensures your team's annotations and edits are never lost and always in sync, worldwide.
  • check_circle Native-Class Web Architecture delivers true offline capabilities directly through your browser, no app store required.
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Simple, transparent pricing

Choose the plan that fits your firm's scale. No hidden fees or "per-sheet" overages.

Starter

$0/mo

Perfect for individual architects and small side projects.

  • check 1 Active Project
  • check 100 Sheets per project
  • check Share with 1 person
  • check Basic Annotations
  • check Web & Mobile Access
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Most Popular

Professional

$49/mo

For growing firms that need to collaborate across multiple jobsites.

  • check 10 Active Projects
  • check Unlimited Sheets
  • check Unlimited Sharing
  • check Advanced AI Photo Tagging
  • check Smart Diffing & Versioning
  • check Offline Sync
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Pay As You Go

$10/project

No monthly fees. Pay only for what you build.

  • check $0.05 per sheet
  • check Unlimited Sharing
  • check All AI Features included
  • check Versioning & Smart Diffing
  • check No subscription required
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Ready to build better?

Join top architects streamlining their project lifecycles with VellumDrop.

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