BlockPoster.ai

Turn photos into wall-sized posters printed across ordinary sheets

#4 in Design
Design
AI image generation
Utilities
Freemium, from $4.99
Launched 31 Oct 2026

Verified clicks, 30 days: 0
Votes: 0
Score: 14.9 pts
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About

BlockPoster.ai is a block poster maker that splits a single image into a grid of pages you print and assemble into large wall art. Upload a JPG, PNG or WebP, or use AI to generate original artwork. The tool lets you choose paper size (A4, US Letter, A3, Legal or Tabloid), set the grid dimensions, crop the image and preview the exact layout before downloading.

Your photos stay in your browser during processing. You can download a free PDF with a watermark and 150 DPI limit to test before upgrading. HD downloads up to 300 DPI need either a one-time source-image unlock or an active subscription. AI image generation uses a separate credit system; one successful image costs 2 credits.

The PDF includes an assembly guide on the first page, with overlap marks, trim lines and alignment guides on each sheet. Print at actual size (100 percent), not fit-to-page, then trim, align and tape from the back. No special paper or equipment needed.

BlockPoster.ai is a block poster maker that turns photos or AI-generated images into wall-sized prints split across ordinary sheets. What sets it apart is the local processing of uploaded photos, which stay in your browser, plus a free preview mode at 150 DPI with a watermark so you can test the layout before paying. HD downloads up to 300 DPI and AI image generation use separate credit systems, letting you buy only what you need.

Problem: Printing large posters at home usually means buying expensive oversized paper or paying for professional printing services.
Solution: BlockPoster.ai splits any image into pages sized for your home printer, then you assemble them into wall art using ordinary sheets and tape.

Updated 1d ago