Image Specs for Every Social Platform
Know the exact dimensions, aspect ratios, and file-size limits for every major social network.
Learning Objectives
- 1Identify the optimal image dimensions for feed posts, stories, and ads on Instagram, Facebook, TikTok, LinkedIn, and X
- 2Understand how each platform crops and resizes uploaded images
- 3Configure export settings in Magic Eraser to match any platform's requirements
Image dimensions for major social platforms
Each social platform displays images at different dimensions and aspect ratios, and uploading the wrong size results in awkward cropping that cuts off important visual elements. Instagram feed posts perform best at 1080 by 1080 pixels for square or 1080 by 1350 for portrait, while Stories and Reels require 1080 by 1920 vertical frames. Facebook feed images display at 1200 by 630, and LinkedIn posts show best at 1200 by 627. X (formerly Twitter) uses 1600 by 900 for in-stream images. Keeping a reference sheet of these specs saves time every session.
Quality settings that prevent compression loss
Platforms apply their own resizing and compression after upload, which can degrade image quality if your source file is too small or in the wrong format. Always export at the exact target dimension rather than relying on the platform's scaling algorithm. Use JPEG at 85-95% quality for photographic content and PNG for graphics with text or sharp lines. File sizes above 5 MB are compressed more aggressively by most platforms, so aim to stay under that threshold while maintaining visual sharpness.
Staying current with format changes
Magic Eraser includes export presets for every major platform, allowing you to choose your target with a single click. The preset automatically sets the canvas size, aspect ratio, resolution, and file format. If your image does not match the target aspect ratio, the tool shows a crop preview so you can position the subject optimally before exporting. Using these presets eliminates guesswork and ensures every exported image is platform-ready without manual dimension calculations.
Key Takeaways
- ✓Instagram, Facebook, LinkedIn, TikTok, and X each have different optimal image sizes
- ✓Export at the exact target dimension to avoid platform-side compression artifacts
- ✓Use Magic Eraser's platform presets to automate sizing, format, and crop decisions