Social media platforms are picky about image formats and sizes. Upload a PNG that's too large and it compresses into a blurry mess. Use WebP and your image won't upload at all on some platforms. Get the dimensions wrong and your carefully designed graphic gets cropped in unexpected places.
This guide covers the right format, size, and approach for every major social media platform in 2026.
The Universal Rules for Social Media Images
Before platform-specific guidance, three rules apply everywhere:
- Use JPG for photos. Every social platform accepts JPG. It's the safest choice for photographic content.
- Use PNG for graphics with text or logos. PNG's lossless compression keeps text sharp. JPG compression blurs text edges.
- Avoid WebP for uploads. While WebP is excellent for websites, many social platforms don't accept WebP uploads. Convert to JPG or PNG first using ConvertEase's WebP to JPG converter.
Facebook Image Formats and Sizes
Accepted formats: JPG, PNG, GIF, BMP, TIFF, WebP (limited)
Recommended format: JPG for photos, PNG for graphics
- Profile picture: 170×170px minimum — circular crop on desktop
- Cover photo: 820×312px desktop (displayed at 820×312), 640×360px on mobile
- Feed post image: 1200×630px recommended — appears at 470px wide in feed
- Shared link preview (OG image): 1200×630px
Key tip: Facebook recompresses uploaded images. For best quality, upload JPGs at maximum quality (85%+) rather than pre-compressed files. Facebook will compress again anyway — giving it a high-quality source produces better results.
Instagram Image Formats and Sizes
Accepted formats: JPG, PNG
Note: Instagram does NOT accept WebP or GIF for regular posts
- Square post: 1080×1080px (1:1 ratio)
- Portrait post: 1080×1350px (4:5 ratio) — takes up more feed space
- Landscape post: 1080×566px (1.91:1 ratio)
- Stories: 1080×1920px (9:16 ratio)
- Profile picture: 320×320px minimum — circular crop
Key tip: Instagram applies aggressive compression. Upload images at the recommended size rather than larger — oversized images get downscaled AND compressed, resulting in more quality loss.
Twitter/X Image Formats and Sizes
Accepted formats: JPG, PNG, GIF, WebP
File size limit: 5MB for photos, 15MB for GIFs
- In-feed image: 1200×675px (16:9) or 1200×1200px (square)
- Profile picture: 400×400px — circular crop
- Header image: 1500×500px
- Card image (linked posts): 1200×628px
Twitter accepts WebP uploads in 2026, making it one of the more format-flexible platforms. However, JPG remains the most reliable choice for maximum compatibility.
LinkedIn Image Formats and Sizes
Accepted formats: JPG, PNG, GIF
No WebP support
- Post image: 1200×627px recommended
- Profile picture: 400×400px minimum
- Company logo: 300×300px
- Cover image (personal): 1584×396px
- Article header: 744×400px minimum
Key tip: LinkedIn is used professionally — image quality matters more here than on casual platforms. Use high-quality JPG (90%+) or PNG. Don't over-compress LinkedIn images.
YouTube Image Formats and Sizes
Thumbnails accepted formats: JPG, GIF, BMP, PNG
File size limit: 2MB
- Video thumbnail: 1280×720px (16:9 ratio minimum)
- Channel icon: 800×800px — circular crop
- Channel art: 2560×1440px (displayed at various sizes on different devices)
Custom thumbnails have a huge impact on click-through rates. Use PNG for thumbnails with text overlay to keep text sharp. JPG for photo-based thumbnails.
Converting Images for Social Media
If you have images in the wrong format for your target platform, ConvertEase has all the tools you need:
- Convert WebP to JPG for platforms that don't accept WebP: WebP to JPG
- Convert PNG to JPG to reduce file size for platforms with size limits: PNG to JPG
- Convert BMP to JPG (BMP files are too large for social uploads): BMP to JPG
- Compress oversized images before uploading: Image Compressor
Creating Social Media Images from Documents
Sometimes you need to share document content on social media — a key statistic from a report, a quote from a presentation, or a policy page from a PDF. The easiest way: convert the relevant PDF page to JPG, then upload to social media.
Use ConvertEase's PDF to JPG converter to extract specific pages from any PDF as high-quality JPG images ready for social media sharing.
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