📋 Contents
Complete Size Cheat Sheet (All Platforms, 2026)
| Platform | Image Type | Recommended Size | Aspect Ratio | Max File Size |
|---|---|---|---|---|
| Square post | 1080 × 1080 px | 1:1 | 8 MB | |
| Portrait post | 1080 × 1350 px | 4:5 | 8 MB | |
| Landscape post | 1080 × 566 px | 1.91:1 | 8 MB | |
| Stories / Reels | 1080 × 1920 px | 9:16 | 8 MB | |
| Profile picture | 320 × 320 px | 1:1 | — | |
| Shared image / link preview | 1200 × 630 px | 1.91:1 | 8 MB | |
| Cover photo | 1640 × 624 px | ~2.63:1 | — | |
| Profile picture | 360 × 360 px | 1:1 | — | |
| Twitter / X | In-feed image | 1600 × 900 px | 16:9 | 5 MB |
| Header photo | 1500 × 500 px | 3:1 | — | |
| Profile picture | 400 × 400 px | 1:1 | — | |
| Shared image / link preview | 1200 × 627 px | 1.91:1 | 8 MB | |
| Company cover | 1536 × 768 px | 2:1 | — | |
| Profile picture | 400 × 400 px | 1:1 | — | |
| TikTok | Video / image post | 1080 × 1920 px | 9:16 | — |
| Profile picture | 200 × 200 px | 1:1 | — | |
| YouTube | Thumbnail | 1280 × 720 px | 16:9 | 2 MB |
| Channel banner | 2560 × 1440 px | 16:9 | 6 MB | |
| Standard Pin | 1000 × 1500 px | 2:3 | 20 MB | |
| Square Pin | 1000 × 1000 px | 1:1 | 20 MB |
Aspect Ratios Explained: Why 1:1 vs 16:9 Matters
The aspect ratio is the proportional relationship between width and height. If you upload a 16:9 image to a 1:1 platform slot, something gets cropped — usually the most important part.
| Ratio | Common Name | Where Used |
|---|---|---|
| 1:1 | Square | Instagram square posts, profile pictures |
| 4:5 | Portrait | Instagram portrait (vertical) posts |
| 9:16 | Vertical / Stories | Instagram Stories, TikTok, YouTube Shorts, Reels |
| 16:9 | Widescreen | YouTube thumbnails, Twitter/X in-feed, presentations |
| 1.91:1 | Link preview | Facebook/LinkedIn link shares, OG image tag |
| 2:3 | Pinterest standard Pins (taller than wide) |
The 3 Most Common Social Media Image Mistakes
1. Uploading a full-resolution photo (4000×6000 px for a 1080px slot)
Platforms auto-resize large uploads. Their compression is aggressive and quality-destroying. You're better off resizing to the exact target dimensions yourself with a quality-controlled downsample — your 1080px version will look sharper than the platform's 1080px version of your 4000px original.
2. Using the wrong format for the content type
Photos → JPEG. Screenshots, logos, text → PNG. If you upload a screenshot as JPEG, the text gets compression artifacts and becomes blurry. If you upload a photo as PNG, the file is 5× larger with no quality benefit.
3. Not accounting for safe zones
Platforms overlay UI elements on your images. Profile pictures have circular crops. Thumbnails get timestamp overlays. Stories have header/footer bars. Keep important content in the center 80% of the image. Assume edges will be cropped or covered.
How to Resize Any Image to Platform Specs in One Click
Use the iluv.tools Image Resizer:
- Upload your image
- Enter target dimensions (use the cheat sheet above)
- Choose "Maintain aspect ratio" (fills remaining space with background) or "Stretch to fit"
- Pick output format (JPEG for photos, PNG for graphics)
- Download the perfectly-sized image
For batch processing (same photo, multiple platforms), use the dimensions from the cheat sheet for each target. Or use Compress Image after resizing to ensure the file is under each platform's size limit.
Batch Workflow: One Photo, 6 Platforms
You have one great photo. It needs to work everywhere. Here's the workflow:
- Start with the highest-resolution original — never resize up. If your photo is 4000×3000, you have enough pixels for every platform.
- Crop to content first — use Crop Image to frame the subject. Don't rely on platforms to crop — they'll crop to center, which is usually wrong.
- Resize for each platform:
- Instagram square: 1080×1080
- Instagram Stories: 1080×1920
- Facebook/LinkedIn link: 1200×630
- Twitter/X feed: 1600×900
- YouTube thumbnail: 1280×720
- Pinterest: 1000×1500
- Compress before uploading — run each resized version through Compress Image at quality 80-85. This prevents the platform from applying its own (worse) compression.
Total time: 3 minutes. Result: one photo, optimized for every platform, looking its best everywhere.