Facebook's News Feed is a competitive visual environment where the average user scrolls past 300 feet of content daily. Single photos blend into the noise — but a multi-image grid presented as one cohesive visual commands attention through information density. MergeFrame's approach to Facebook-optimized grids focuses on what the platform's image display algorithm favors: square or near-square aspect ratios that maximize screen real estate in both desktop and mobile feeds, high-contrast compositions that remain clear even when Facebook compresses the image, and visual storytelling that generates comments and shares — the two engagement signals Facebook's algorithm weights most heavily. Proven Facebook post formats: (1) The Event Recap — 2×2 or 2×3 grid of 4–6 photos from a community event, product launch, or team gathering. These generate high engagement from attendees tagging themselves and sharing. Post with a call-to-action: 'Tag someone you spotted! 📸' (2) The Product Showcase — 1×3 horizontal strip showing a product from three angles or in three color variants. Works for Facebook Shop posts, Marketplace listings, and page promotions. (3) The Before-After — 1×2 grid for renovation reveals, makeovers, cleaning transformations. Facebook users share before-after content 2× more than standard product photos. (4) The Tutorial Summary — 2×2 grid of key steps from a how-to video. Post it as the thumbnail image with 'Full tutorial in the comments 👇' to drive video views and comments simultaneously. (5) The Community Spotlight — 2×3 grid featuring customer photos, user-generated content, or community member highlights. Tag featured members to expand organic reach. For Facebook groups, horizontal 1×3 and 1×4 grids work best — they display without cropping in group feeds and convey more information than vertical formats. For Facebook pages, square 2×2 grids match the page's photo tab layout and create a consistent branded aesthetic. Export at 2048px on the longest side — Facebook displays images at up to 2048px and compresses beyond that. PNG format preserves text legibility better than JPG after Facebook's compression. All grid creation happens locally in your browser — your photos never leave your device until you upload the final grid to Facebook. Free tier: full resolution, all layouts, unlimited exports, no watermark.