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): Export at 1080px (format carré) for feed, or 1080px (format portrait) for the taller 4:5 ratio. Pinterest Pin Collages (2×2, Strip of 3, or 2×3): Export at 1000px (format Pinterest 2:3) (2:3 ratio). LinkedIn Post Grids (1×2 or 2×3): Export at 1920px (format 16:9) for document slides. Twitter/X Thread Visuals (1×2 or 2×2): threads with images get more impressions. Export at 1600px (16:9). TikTok & YouTube Thumbnails (2×2 or 1×2): Export at 1920px (format 16:9) for YouTube, 1080×1920px (format Stories 9:16, nécessite rotation manuelle) for TikTok.
**Social Media Image Sizes Cheat Sheet:** Instagram Feed: 1:1 or 4:5, 1080px (format carré) or 1080px (format portrait), 2×2/2×3 grids. Pinterest Pin: 2:3, 1000px (format Pinterest 2:3), 2×2/2×3 grids. LinkedIn Post: 1.91:1 or 1:1, 1200px or 1080px (format carré). Twitter/X: 16:9 or 1:1, 1600px or 1080px (format carré). Facebook: 1.91:1 or 1:1, 1200px (format horizontal) or 1080px (format carré). TikTok Thumbnail: 9:16, 1080×1920px (format Stories 9:16, nécessite rotation manuelle). YouTube Thumbnail: 16:9, 1920px (format 16:9).
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 (1000px (format Pinterest 2:3)). 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 a vertical stack. 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
1080px (format carré) for Instagram, 1000px (format Pinterest 2:3) for Pinterest, 1200px for LinkedIn, 1600px for Twitter/X, 1920px (format 16:9) 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.'
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?
Engagement depends on your content, your audience, and the platform. A clean grid makes multi-image posts easier to read.
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Get the free template pack
Optional: 10 social media grid templates you can import in one click, plus occasional MergeFrame tips. The tool stays 100% free and account-free: it is a bonus.
MergeFrame: Combine images into a grid. Free. No account. Browser-only.
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