Platform-by-Platform Format Guide
Different social media platforms have different preferences and requirements for image formats. Using the right format ensures your images look their best and upload quickly.
Instagram prefers JPG for photos. The platform applies its own compression, so starting with a high-quality JPG gives the algorithm more data to work with. For stories with text overlays, PNG preserves sharper edges. Instagram’s compression can blur small text in JPG uploads.
Facebook recommends JPG for all image uploads. The platform heavily compresses images, and JPG’s smaller file sizes make uploads faster. PNG is acceptable but typically results in larger uploads with no visible benefit.
Twitter/X accepts both JPG and PNG. For photos, JPG is the practical choice. For graphics with text or screenshots, PNG produces crisper results. The platform doesn’t recompress images as aggressively as Facebook.
LinkedIn works well with JPG for posts and article images. For company logos and profile photos where sharpness matters, PNG is preferable.
Format Recommendations Table
| Platform | Best Format | Max Size | Notes |
|---|---|---|---|
| JPG | 8MB | PNG for stories with text | |
| JPG | 8MB | Heavy compression applied | |
| Twitter/X | JPG or PNG | 5MB | PNG for text/graphics |
| JPG | 8MB | PNG for logos | |
| JPG | 20MB | High-res images perform better | |
| TikTok | JPG | - | Thumbnails are JPG |
Compression for Social Media
All social platforms compress uploaded images. Uploading an uncompressed 10MB photo doesn’t result in better quality — the platform compresses it anyway, and you waste bandwidth on the upload.
The optimal approach is to compress your images before uploading. Use our compression tool to reduce file sizes while maintaining quality. For Instagram, compress photos to 80-85% quality. For Facebook, 75-80% is sufficient given their additional compression.
Be aware of platform-specific size limits. Instagram stories display at 1080x1920, so uploading a 4000-pixel image provides no benefit. Resize images to the platform’s display dimensions before compressing.
Common Mistakes
Uploading uncompressed images wastes time and data. Always compress before uploading.
Wrong aspect ratios result in awkward cropping. Instagram posts should be 1:1, 4:5, or 1.91:1. Stories must be 9:16. Twitter headers are 3:1. Use our resize tool to match platform dimensions exactly.
Over-compressing produces visible artifacts that look unprofessional. Aim for the smallest file that still looks good, not the absolute minimum file size.
Quick Prep Checklist
Before uploading to any platform:
- Resize to the platform’s recommended dimensions
- Choose the appropriate format (JPG for photos, PNG for graphics)
- Compress to 75-85% quality
- Verify text is readable after compression
- Check that the image looks good on mobile screens