Free grid maker to turn photos into numbered drawing grids
Drawing review and markup platform for architecture, engineering and construction teams
Stage
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Founded
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Based in
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US
Pricing model
Free
Freemium
Pricing
Not given
Desktop license: $89 one-time permanent license for Mac and Windows, includes 1 year of new desktop features. Cloud Free: free tier with 1 workspace, 3 members, 5 documents, 50 AI credits per month. Cloud Pro: $12.50 per user per month (billed annually) with unlimited workspaces, 3 members per works
Key features
Overlays numbered grid on photos with automatic line color detection
Three grid sizes: Fewer (3 squares), Medium (5 squares), More (8 squares) across short side
Works on phones and computers without installation or upload
Print two sheets: photo with grid and empty grid for drawing
Save gridded photos as JPG or PNG with no watermark
View individual squares enlarged while working
Supports JPG, PNG, WebP and iPhone HEIC photo formats
Desktop app for Mac and Windows with local PDF markup tools
Cloud-based collaboration with real-time cursor visibility
Calibrated measurement tools for metric and imperial scales
Version history and version control across drawing revisions
Dropbox and Google Drive integration
Collaborative whiteboards for sketching and design exploration
RFI and punch list tracking with file attachments
Support for large multipage construction drawing sets up to 200 MB
Revision bubbles and hatch fills for clear markup annotation
Works on Mac, Windows, iPad and mobile devices in browser
What makes it different
No sign-up, watermark, or photo upload required
Processes entirely in browser for instant results and privacy
Works on phones without app download using browser only
Numbered grid squares (A1, B3 format) help track drawing progress and teach proportion
Built specifically for AEC teams with purpose-built markup and measurement tools
Connects to file storage teams already use without requiring file migration
Collaboration without requiring accounts from contractors and clients
Markup permanently tied to drawings and preserved across revisions
One-time desktop license with no subscription required for local PDF tools