Two ratios do most of the work in 2026: 4:5 portrait for feed posts and 9:16 for anything vertical. Upload at 1080 px wide minimum, and resize before uploading rather than letting the app crop for you — our image resizer includes the most common presets and accepts every custom size in the tables below. The compressor lets you tune output quality and compare the resulting file size before download.
Instagram switched its profile grid to 3:4 thumbnails in 2025, which quietly changed the rules: a 4:5 post still displays fine in feed, but the grid crops it. If your grid is part of your brand, compose with the center 3:4 in mind.
| Surface | Size (px) | Ratio |
|---|---|---|
| Feed post (portrait — use this) | 1080 × 1350 | 4:5 |
| Feed post (square) | 1080 × 1080 | 1:1 |
| Feed post (landscape) | 1080 × 566 | 1.91:1 |
| Reels / Stories | 1080 × 1920 | 9:16 |
| Grid thumbnail (what the profile shows) | 1015 × 1350 | 3:4 |
| Profile photo (upload) | 320 × 320 | 1:1 |
Reels overlay UI on both edges — username and caption at the bottom, action rail on the right. Before you export, run the video through the safe zone previewer so no text sits under a button.
TikTok
TikTok is uncompromisingly vertical. Everything is 9:16, edge to edge, and anything else gets letterboxed into irrelevance.
| Surface | Size (px) | Ratio |
|---|---|---|
| Video | 1080 × 1920 | 9:16 |
| Photo carousel slide | 1080 × 1920 | 9:16 |
| Profile photo | 400 × 400 (min 200) | 1:1 |
YouTube
The thumbnail is the highest-leverage image on this page — it decides your click-through rate. 1280×720 is the spec, but design it to survive at 168 px wide, because that’s how most people meet it in the sidebar.
| Surface | Size (px) | Ratio |
|---|---|---|
| Thumbnail | 1280 × 720 (max 2 MB) | 16:9 |
| Channel banner (upload) | 2560 × 1440 | 16:9 |
| Banner safe area (all devices) | 1546 × 423 | — |
| Profile photo | 800 × 800 | 1:1 |
| Shorts | 1080 × 1920 | 9:16 |
The banner is brutal: TVs see all 2560×1440, phones see only the central 1546×423 strip. Anything outside that strip — logos, taglines, schedules — will be invisible to most of your audience.
X (Twitter)
| Surface | Size (px) | Ratio |
|---|---|---|
| In-stream image | 1600 × 900 | 16:9 |
| Profile photo | 400 × 400 | 1:1 |
| Header | 1500 × 500 | 3:1 |
| Max upload | 4096 × 4096 | — |
The header renders behind the round profile photo on the bottom-left, and mobile crops the top and bottom edges. Keep faces and text in the vertical middle, biased right.
| Surface | Size (px) | Ratio |
|---|---|---|
| Feed image | 1200 × 630 | 1.91:1 |
| Feed image (portrait) | 1080 × 1350 | 4:5 |
| Stories / Reels | 1080 × 1920 | 9:16 |
| Cover photo (desktop crop) | 820 × 312 | — |
| Cover photo (mobile crop) | 640 × 360 | — |
| Profile photo (upload) | 320 × 320 | 1:1 |
Desktop and mobile crop the cover photo differently — design inside the overlap (roughly the central 640×312) or your edges get eaten on one device or the other.
| Surface | Size (px) | Ratio |
|---|---|---|
| Post image | 1200 × 627 | 1.91:1 |
| Profile photo | 400 × 400 | 1:1 |
| Personal banner | 1584 × 396 | 4:1 |
| Company logo | 300 × 300 | 1:1 |
| Company Page cover | 4200 × 700 | 6:1 |
| Document/carousel page | 1080 × 1350 | 4:5 |
| Surface | Size (px) | Ratio |
|---|---|---|
| Standard pin | 1000 × 1500 | 2:3 |
| Square pin | 1000 × 1000 | 1:1 |
| Idea pin / video | 1080 × 1920 | 9:16 |
| Profile photo | 165 × 165 | 1:1 |
A 2:3 standard pin uses the available vertical space without relying on an unusually tall crop. Check the preview before publishing because feed presentation can vary by device and placement.
The 30-second workflow
- Export from your editor at full quality, 2× the target size or larger.
- Resize to the exact dimension from the tables above with the image resizer. Pick a common preset or enter the table dimensions directly.
- If the file is over the platform cap — or you’re putting it on a website — run it through the image compressor. Both run on your device; nothing uploads.
Sources and maintenance
Dimensions are reviewed against first-party guidance where it is published. See YouTube's channel banner guidanceand LinkedIn's Page image specifications. Platform crops vary across devices, so the tables distinguish upload size from visible safe area. If a current uploader shows a different requirement, send us the surface and device.