| What it does | See why colors work
| Free online database schema design tool for ER diagrams and SQL generation
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: Original view, Temperature map, Value structure, Saturation map, Palette and Harmony for every image, 20 analyses at a time. Lifetime Premium: one-time purchase includes Composition guides, Contrast map, tinted value bands, unlimited history, full-res export. No subscription.
| Free tier includes the open-source editor with all SQL dialects, import & export, and local diagram storage. drawDB Pro offers paid plans for Solo Pro and Team Pro with cloud storage, real-time collaboration, AI schema assistant, GitHub integration, and priority support.
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| Key features | - Palette with proportions showing dominant colors sized by image weight
- Color harmony identification (Complementary, Analogous, Triadic, Split-complementary, Tetradic, Square, Monochromatic)
- Temperature map showing warm and cool distribution across image
- Value structure divided into clear zones (light, mid-tone, dark)
- Saturation map showing vivid and muted areas
- Composition guides identifying classic guides like golden ratio and rule of thirds
- Contrast map showing where the eye lands first (Premium)
- Painter-friendly color names (Yellow Ochre, Payne's Gray, etc.)
- Local device processing with no image uploads
- Works offline with no account required
| - Entity-relationship diagram editor
- SQL generation for PostgreSQL, MySQL, SQLite, MariaDB, SQL Server, and Oracle
- DBML import and export
- Real-time collaborative database design
- Cloud storage and team workspaces
- AI-assisted schema design
- Schema reverse engineering from existing SQL
- Version history and migration generation
- Export to SQL, JSON, PNG, JPEG, SVG, and PDF
- Keyboard shortcuts and customizable workspace
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| What makes it different | - Shows color proportions, not just colors, recognizing that a 60/5 split is fundamentally different from 50/50
- Four layers of analysis together show relationships single layers cannot reveal
- Built by people who actually mix paint with painter-friendly vocabulary
- Lifetime Premium with single payment, no subscription model
- All data stays on device, no account signup required
| - Free and open source with no account required to start designing
- Supports all major SQL dialects in one tool
- Self-hostable on your own infrastructure with Docker
- Real-time team collaboration with shared cursors and presence
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 8 ▲ +1 (up) since last check | 46 ● no change since last check |
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| Trust Flow (Majestic) | 4 | 10 |
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| Citation Flow (Majestic) | 32 | 33 |
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| Referring domains (Majestic) | 31 | 526 |
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Undertone
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