| What it does | Free online stamp maker for custom stamps and seals
| See why colors work
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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: unlimited design edits and 480px watermarked JPG download. Paid: High-res PNG $2.50, PNG + SVG $2.90, All formats (PNG + SVG + PDF) $3.50. No subscription, one-time payment only.
| 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.
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| Key features | - 26 stamp template categories including company seals, notary, date, and deposit stamps
- Round, square, or rectangular stamp shapes sized in real millimeters
- Live preview rendering as you edit
- Free watermarked JPG download to test layout
- High-resolution PNG export at 6000px with transparent background
- Vector SVG export with text converted to outlines for stamp makers
- Print-ready PDF at true physical size
- Mobile-responsive web app with no installation required
- Customizable fonts including Oswald, Archivo, PT Serif, Courier Prime, and Noto Sans CJK
- Adjustable ink color, opacity, aging effect, and border styles
| - 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
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| What makes it different | - No account creation or signup required to design and download free preview
- Pay once per design, no subscription billing
- Server-side rendering ensures preview matches final export exactly
- Designed specifically for real documents with print-ready output at true size
- Seven-day email download link for file re-downloads after payment
| - 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
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 11 ● no change since last check | 8 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 6 | 4 |
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| Citation Flow (Majestic) | 22 | 32 |
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| Referring domains (Majestic) | 10 | 31 |
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StampZen
Undertone