Free block poster maker for turning photos or AI art into wall-sized prints
Free browser-based tool to extract HEX, RGB, and HSL color codes from any image pixel
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
Click or tap any pixel to read its exact color code
Get HEX, RGB, HSL, CMYK, and OKLCH values with one-click copy
Extract dominant colors from an image as a palette
No server upload – image processing happens entirely in your browser
Match colors to traditional Chinese and Japanese color names
Save color history in your browser on this device
Works on mobile with touch and on-screen keyboard
Export palettes as CSS variables, Tailwind, or JSON
Support for JPG, PNG, and WebP image formats with drag-and-drop upload
Use arrow keys to nudge the cursor and fine-tune pixel selection
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
Entirely browser-based with no sign-up required
Links picked colors to centuries-old traditional Chinese and Japanese palettes
Displays multiple color formats (HEX, RGB, HSL, CMYK, OKLCH) for every pixel
Image never leaves your browser – all processing is client-side
Supports palette export in multiple formats for developers and designers
BlockPoster.ai
Image Color Picker