| What it does | Free online tools for flowcharts, charts, diagrams and timelines with no sign-up
| Drawing review and markup platform for architecture, engineering and construction teams
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| US
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: no account required, all diagram and chart makers, PNG/SVG/PDF export, no watermark. Pro: Monthly $9.99 a month, Yearly $99.99 a year with 7-day free trial, Lifetime $239.99 once. Euro area: €10.99 a month, €109.99 a year, €259.99 once (VAT included).
| 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
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| Key features | - Flowchart and process diagram maker with canvas and text-to-diagram modes
- Text-to-diagram tools for UML, ER and sequence diagrams
- Chart tools: pie chart, line graph, gauge and Sankey diagram
- Automatic diagram layout from typed text
- Export to PNG, SVG and PDF without watermark
- Share diagrams with share links
- Pro: editable .drawio export and vector PDF
- Pro: multi-page documents and layers
- Diagram checks for unlabelled branches and dead ends
- Works on phone and computer
| - 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
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| What makes it different | - Completely free with no account required and no watermark on exports
- Nothing uploaded: all work stays on your device in your browser
- Results computed by the same tested code, not manually typed
- Multiple export formats: PNG at 4 sizes, SVG and PDF
- Converts between formats: Mermaid to draw.io, SQL to ER, Visio to flowchart
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 19 | 12 |
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| Referring domains (Majestic) | 4 | 2 |
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Diagram Smith
Deta Studio