How-to Guide
Photo Grid for Social Media — Free Grid Maker for Every Platform (No Signup)
Every social platform wants your images at different dimensions. Instagram wants a square. Pinterest wants a tall vertical. LinkedIn wants a horizontal. And every platform rewards posts with multiple images — carousels get more engagement than single images. MergeFrame makes social media grids fast. Drop your images, pick a layout, export at the right size for your platform. No signup. No watermark.
Try MergeFrame — Free**Platform-Specific Grid Guides.** Instagram Carousel Grids (2×2 or 2×3): carousels get 3× more engagement than single images. Export at 1080×1080px for feed, or 1080×1350px for the taller 4:5 ratio. Pinterest Pin Collages (2×2, 1×3, or 2×3): 85% of Pinners use the platform to plan purchases. A multi-image grid pin performs better than a single image. Export at 1000×1500px (2:3 ratio). LinkedIn Post Grids (1×2 or 2×3): LinkedIn's document post feature is one of the platform's highest-engagement formats. Export at 1920×1080px for document slides. Twitter/X Thread Visuals (1×2 or 2×2): threads with images get more impressions. Export at 1600×900px (16:9). TikTok & YouTube Thumbnails (2×2 or 1×2): thumbnails are 80% of whether someone clicks. Export at 1920×1080px for YouTube, 1080×1920px for TikTok.
**Social Media Image Sizes Cheat Sheet:** Instagram Feed — 1:1 or 4:5, 1080×1080px or 1080×1350px, 2×2/2×3 grids. Pinterest Pin — 2:3, 1000×1500px, 2×2/2×3 grids. LinkedIn Post — 1.91:1 or 1:1, 1200×627px or 1080×1080px. Twitter/X — 16:9 or 1:1, 1600×900px or 1080×1080px. Facebook — 1.91:1 or 1:1, 1200×630px or 1080×1080px. TikTok Thumbnail — 9:16, 1080×1920px. YouTube Thumbnail — 16:9, 1920×1080px.
How to Do It — Step by Step
- 1
Choose your platform and aspect ratio
Instagram: 1:1 square or 4:5 vertical. Pinterest: 2:3 vertical (1000×1500px). LinkedIn: 1.91:1 horizontal. Twitter/X: 16:9. TikTok/YouTube: 16:9 or 9:16.
- 2
Select your grid layout
Instagram carousel: 2×2 or 2×3. Pinterest: 2×2 or 1×3 stacked. LinkedIn: 1×2 or 2×3. Twitter/X: 1×2 or 2×2.
- 3
Drop or paste your images
Drag files from your desktop or paste from clipboard. Order them left to right, top to bottom.
- 4
Set background and spacing
White, black, or brand color. 4-8px gap for clean separation. Transparent if overlaying on a colored template.
- 5
Export at platform-optimized resolution
1080×1080px for Instagram, 1000×1500px for Pinterest, 1200×627px for LinkedIn, 1600×900px for Twitter/X, 1920×1080px for thumbnails.
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Frequently Asked Questions
What's the best grid layout for Instagram carousels?
2×2 (four images) is the sweet spot — it creates a balanced preview that clearly signals 'swipe to see each one.' Instagram carousels support 2-10 slides, but engagement peaks at 4-6 slides.
Does MergeFrame support the correct aspect ratios for each platform?
MergeFrame exports at the exact pixel dimensions you set. Use the cheat sheet above to select the right resolution per platform. You control the export size.
Can I create grids for LinkedIn document carousels?
Yes. Create each slide as a separate grid, export as PNGs, compile into a PDF using your computer's built-in tools, and upload to LinkedIn as a document post.
What's the best background color for social media grids?
White (#FFFFFF) for a clean look that works on all platforms. Black (#000000) for dramatic effect. Brand color for consistent branding. Avoid gray backgrounds.
Should I add text to my social media grids?
MergeFrame doesn't add text overlays. Create your grid in MergeFrame, then add text in Canva, Photoshop, or Figma. Or annotate images before importing.
How do grids affect social media engagement?
Instagram carousels get 3× more engagement. Pinterest multi-image pins outperform single-image pins. LinkedIn document posts are the most viral organic format. Twitter/X threads with images get 3-5× more impressions.
Related Free Tools
MergeFrame — Combine images into a grid. Free. No account. Browser-only.
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