Free block poster maker for turning photos or AI art into wall-sized prints
Free online tool for generating random HEX, RGB, and HSL colors instantly
Stage
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Founded
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Based in
HK
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Pricing model
Freemium
Free
Pricing
Free: basic PDF export up to 150 DPI with watermark. Starter $4.99/month with 20 AI credits, unlimited HD PDFs. Creator $19.99/month with 200 AI credits, unlimited HD PDFs. Studio $39.99/month with 1,000 AI credits, unlimited HD PDFs. One-time options: $4.99 with 1 source-image unlock and 2 AI credi
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Key features
Upload photos or generate AI artwork
Choose from five paper sizes
Crop and adjust margins and overlap
Preview layout before downloading
Free and paid export options
Batch processing of multiple images
Save and reuse print presets
Instant random color generation with spacebar shortcut
HEX, RGB, and HSL color code display with 1-click copy
2 to 10 color harmonized palette generator with smart color locking
Export palettes to CSS Variables, SVG, PNG, and shareable URLs
WCAG 2.1 contrast checker with relative luminance calculation
Color of the Day inspiration
Local-first saved palettes storage with zero tracking
Browser sidepanel for inspecting colors and testing contrast
Color Eye Quiz mini-game to test designer skills
What makes it different
Private photo processing stays on your device
Full-featured free edition without account
Works with ordinary home printer paper
AI generation integrated directly in workspace
Clear separation of credits and unlocks
0-latency generation with instant spacebar triggering
Exact conversions across HEX, RGB, HSL with automated WCAG 2.1 contrast metrics
Hyper-focused neutral UI allowing generated hues to take center stage
BlockPoster.ai