1:1 — Square
Useful for profile images, square posts and many carousel formats.
Social Media Image Sizes 2026: Verified Specs, Ratios & Export Presets
A source-tracked reference that separates official recommendations, advertising specifications and common creator presets before you resize.
Last source review: September 11, 2026. Individual rows retain their own checked date and any access caveat.
Use the right field
A useful export size needs a source label.
A chart is only useful if it tells you whether a number is an official platform recommendation, an advertising spec or a practical creator preset. This table keeps those categories visible.
Quick reference
CSV download ↓Current image sizes
| Platform | Placement | Size | Ratio | Source status | Source | Last checked |
|---|---|---|---|---|---|---|
| X | Profile photo | 400 × 400 | 1:1 | Official recommended | X Help | Sep 11, 2026 |
| X | Header imageThe Help article warns that top and bottom cropping can occur. | 1500 × 500 | 3:1 | Official recommended | X Help | Sep 11, 2026 |
| Personal background / cover | 1584 × 396 | 4:1 | Official recommended | LinkedIn Help | Sep 11, 2026 | |
| Page logo | 400 × 400 | 1:1 | Official recommended | LinkedIn Help | Sep 11, 2026 | |
| Page cover imageThe current Help page lists this as both minimum and recommended. | 1512 × 256 | 5.91:1 | Official recommended | LinkedIn Help | Sep 11, 2026 | |
| URL post preview image | 1200 × 627 | 1.91:1 | Official recommended | LinkedIn Help | Sep 11, 2026 | |
| Organic photo post | 1080 px wide | 3:1 to 4:5 | Official width / ratio guidance | LinkedIn Help | Sep 11, 2026 | |
| Standard image PinTaller Pins can be cut off in feeds. | 1000 × 1500 | 2:3 | Official recommended | Pinterest Business Help | Sep 11, 2026 | |
| YouTube | Channel bannerMinimum 2048 × 1152; safe area at the minimum size is 1235 × 338. | 2560 × 1440 | 16:9 | Official recommended | YouTube Help | Sep 11, 2026 |
| YouTube | Custom video thumbnail1280 × 720 remains a common legacy baseline. | 3840 × 2160 | 16:9 | Official recommended | YouTube Help | Sep 11, 2026 |
| YouTube | Custom Shorts thumbnail | 2160 × 3840 | 9:16 | Official recommended | YouTube Help | Sep 11, 2026 |
| TikTok Ad Network | Vertical image / carousel assetAn ad-network spec, not a universal organic-photo rule. | 720 × 1280 | 9:16 | Official ad asset spec | TikTok Ads Manager | Sep 11, 2026 |
| TikTok Ad Network | Square image / carousel asset | 640 × 640 | 1:1 | Official ad asset spec | TikTok Ads Manager | Sep 11, 2026 |
| TikTok Ad Network | Landscape image / carousel asset | 1200 × 628 | 1.91:1 | Official ad asset spec | TikTok Ads Manager | Sep 11, 2026 |
| Feed portrait export presetNot presented as a Meta hard maximum. | 1080 × 1350 | 4:5 | Common creator preset | Current cross-platform guide | Sep 9, 2026 | |
| Story / Reel export presetMeta's public Reels page required login during the Sep 11 recheck. | 1080 × 1920 | 9:16 | Common preset + official ratio guidance | Current cross-platform guide | Sep 9, 2026 | |
| Feed / link export presetA practical export preset, not a universal hard upload limit. | 1200 × 630 | 1.91:1 | Common creator preset | Current cross-platform guide | Sep 9, 2026 | |
| Story / Reel export preset | 1080 × 1920 | 9:16 | Common preset + official ratio guidance | Current cross-platform guide | Sep 9, 2026 | |
| Threads | Feed portrait export presetNo simple first-party pixel table was available in this review. | 1080 × 1350 | 4:5 | Common creator preset | Current cross-platform guide | Sep 9, 2026 |
| Bluesky | Post landscape export presetA practical preset, not a first-party hard maximum. | 1200 × 675 | 16:9 | Common creator preset | Current cross-platform guide | Sep 9, 2026 |
Four useful ratios
Most resizing decisions begin with shape.
4:5 — Portrait feed
A common mobile-first feed export; keep the source label visible where it is not an official pixel rule.
9:16 — Full-screen vertical
Stories, Reels, Shorts and TikTok-style placements use this full-screen shape.
16:9 / 1.91:1 — Landscape
Useful for YouTube thumbnails, link previews and horizontal media.
Choose the result, not just the pixels.
Fit keeps the entire source within the target box. Crop to fill makes the exact canvas by cropping edges. Pad to fit keeps the full source and adds space around it. Resize changes dimensions; compression reduces file weight.
Documentation first. Assumptions visible.
We prefer official Help, developer, advertising and newsroom documentation. When a platform does not publish a simple current rule, the page says so. A common preset remains a common preset; it is never silently promoted to an official hard limit.
Platforms and publishing surfaces change. If a live composer rejects your draft or crop, the live platform is the final authority.
Dimensions are about context, ratio and cropping.
Is every size in the table an official hard rule?
No. Each row is labelled as an official recommendation, an ad specification, a supported ratio, a creator preset or not verified. That distinction is intentional.
Why does the table include 3840 × 2160 for a YouTube thumbnail?
The current English YouTube Help article recommends 3840 × 2160 for video thumbnails, while 1280 × 720 remains a familiar legacy baseline.
What should I use for a social-media portrait feed image?
4:5 is a common mobile-first export shape. The table labels it as a creator preset where the platform does not publish a single organic pixel requirement.
Should I resize or compress first?
Resize when you need a target canvas or ratio. Compress when file weight is the goal. Use both when you need the exact dimensions and a smaller output file.
Resize without guessing the canvas.
ToolkitLoop Image Resizer creates exact target dimensions locally with Fit, Crop to fill and Pad to fit.