YouTube Thumbnail Size, Banner Dimensions & Video Specs (2026)
Your YouTube thumbnail is the most important image in your entire content strategy. It determines whether someone clicks or scrolls past. Your channel banner is the first thing visitors see on your profile. And if your video uploads at the wrong resolution, YouTube compresses it into a blurry mess.
This guide covers every YouTube dimension you need in 2026 — thumbnails, channel banners, video upload specs, Shorts, end screens, community posts, and ads. Every spec is current and verified.
Schedule your YouTube content in advance. PostEverywhere lets you plan and publish YouTube videos and Shorts from one dashboard — alongside all your other platforms. Start your free trial →
Quick Reference Table
| Placement | Dimensions (px) | Aspect Ratio |
|---|---|---|
| Video thumbnail | 1280×720 | 16:9 |
| Channel banner | 2560×1440 | 16:9 |
| Banner safe area | 1546×423 | — |
| Video (standard) | 1920×1080 | 16:9 |
| Video (4K) | 3840×2160 | 16:9 |
| Shorts | 1080×1920 | 9:16 |
| Shorts thumbnail | 1080×1920 | 9:16 |
| End screen element | 300×300 (max) | Varies |
| Community post image | 1280×1280 | 1:1 |
| Profile photo | 800×800 | 1:1 |
Key takeaway: Thumbnails at 1280×720 (16:9) and Shorts at 1080×1920 (9:16) are the two dimensions you will use most. Get these right and most of your YouTube visuals are covered.
Thumbnail Dimensions
Your thumbnail is the single biggest factor in your click-through rate (CTR). A compelling thumbnail can double or triple your views compared to an auto-generated one.
| Spec | Requirement |
|---|---|
| Dimensions | 1280×720 px |
| Aspect ratio | 16:9 |
| Minimum width | 640 px |
| Max file size | 2 MB |
| Formats | JPG, PNG, GIF, BMP |
YouTube requires custom thumbnails to be at least 1280×720 pixels. According to YouTube's help centre, the 16:9 aspect ratio is mandatory — other ratios will be rejected or padded with black bars.
Thumbnail Design Tips
- Use high contrast. Bright colours and bold text stand out against YouTube's white and dark mode backgrounds.
- Keep text large. Most viewers see your thumbnail on a phone screen. If your text is not readable at 160×90px (the smallest mobile preview size), it is too small.
- Use close-up faces. Thumbnails with human faces consistently outperform abstract graphics because they create an emotional connection.
- Stay within the safe zone. Keep important elements within the centre 1100×620px for desktop and 960×540px for mobile. The timestamp badge covers the bottom-right corner.
For AI-assisted thumbnail creation, check out our list of the best AI thumbnail makers. You can also use PostEverywhere's AI Image Generator to create thumbnails at the exact 1280×720 dimensions.
Channel Banner Dimensions
Your channel banner (sometimes called channel art) is the large image at the top of your YouTube channel page. It is one of the trickiest images to design because it displays at dramatically different sizes across devices.
| Placement | Dimensions (px) | Notes |
|---|---|---|
| Full banner (upload size) | 2560×1440 | Full image visible only on TV displays |
| Desktop visible area | 2560×423 | What most desktop viewers see |
| Mobile visible area | 1546×423 | Smallest visible area across devices |
| Safe area (all devices) | 1546×423 | Keep all text and logos inside this zone |
| Max file size | 6 MB | JPG, PNG recommended |
Always upload at 2560×1440, but place all critical content — your logo, tagline, upload schedule, social handles — within the 1546×423px safe area at the centre of the image. This ensures your banner looks correct on phones, tablets, desktops, and smart TVs.
According to YouTube's channel customisation help page, the safe area is defined as the centre rectangle that is visible on every device. Anything outside this zone will be cropped on smaller screens.
Design your banner as a layered composition: a full background that looks good at any crop, with essential information locked to the centre. For channel branding strategies, explore our guide on YouTube trends for 2026.
Video Upload Specs (Long-Form)
YouTube supports a wide range of video resolutions. Higher resolution does not just look better — YouTube's algorithm tends to favour higher-quality uploads because they deliver a better viewer experience.
| Resolution | Dimensions (px) | Aspect Ratio | Common Name |
|---|---|---|---|
| 2160p | 3840×2160 | 16:9 | 4K / Ultra HD |
| 1440p | 2560×1440 | 16:9 | 2K / QHD |
| 1080p | 1920×1080 | 16:9 | Full HD |
| 720p | 1280×720 | 16:9 | HD |
| 480p | 854×480 | 16:9 | SD |
Recommended upload: 1920×1080 (1080p) minimum. If your camera supports it, upload at 4K (3840×2160) — YouTube will create all lower resolution versions automatically, and viewers can choose their preferred quality.
Video File Specifications
| Spec | Requirement |
|---|---|
| Max file size | 256 GB or 12 hours (whichever is less) |
| Recommended format | MP4 |
| Video codec | H.264 |
| Audio codec | AAC-LC |
| Frame rate | 24, 25, 30, 48, 50, or 60 fps |
According to YouTube's recommended upload encoding settings, MP4 with H.264 video and AAC audio is the ideal format. While YouTube accepts many container formats (MOV, AVI, WMV, FLV, WebM), MP4 gives the best balance of quality and file size.
Schedule your YouTube uploads in advance using our YouTube video scheduling guide or the YouTube scheduler.
Plan your YouTube content alongside every other platform. PostEverywhere's content calendar lets you see your entire publishing schedule in one view. See it in action →
Shorts Dimensions
YouTube Shorts are vertical videos up to 3 minutes long. They must use the 9:16 aspect ratio to appear on the Shorts shelf and in the Shorts feed.
| Spec | Requirement |
|---|---|
| Dimensions | 1080×1920 px |
| Aspect ratio | 9:16 |
| Max duration | 3 minutes |
| Custom thumbnail | 1080×1920 (9:16) |
| Format | MP4, MOV |
YouTube now supports custom thumbnails for Shorts. Upload a 1080×1920 image (the same dimensions as the video) to control what viewers see before they tap. Previously, YouTube auto-generated Shorts thumbnails from a frame in the video.
Shorts follow the same 9:16 vertical format used by Instagram Reels, TikTok, and Facebook Reels. If you create vertical video content for one platform, you can repurpose it across all of them using a cross-posting tool. Learn more in our YouTube Shorts scheduling guide.
End Screen Elements
End screens appear during the last 5 to 20 seconds of your video. They allow you to promote other videos, playlists, channels, or external links.
| Element Type | Max Size | Notes |
|---|---|---|
| Video / playlist element | Up to 45% of video width | Uses the video's thumbnail (1280×720) |
| Channel element | Up to 15% of video width | Uses the channel's profile photo |
| Link element | Up to 15% of video width | Max 300×300px |
End screen elements are positioned on top of your video content, so design the last 20 seconds of your video with space for these elements. A common approach is to create a dedicated end screen template with designated areas for your elements.
Community Post Images
YouTube Community posts let you share images, polls, and text updates with your subscribers outside of video content.
| Placement | Dimensions (px) | Aspect Ratio | Max File Size | Format |
|---|---|---|---|---|
| Community post (square) | 1280×1280 | 1:1 | 16 MB | JPG, PNG, GIF |
| Community post (landscape) | 1920×1080 | 16:9 | 16 MB | JPG, PNG, GIF |
Community posts support aspect ratios between 2:5 and 5:2. Images display as a square preview in the feed and expand to full size when clicked. GIFs are supported and can be up to 16 MB. For engagement strategies beyond video, explore the best time to post on YouTube.
Profile Photo
| Placement | Dimensions (px) | Aspect Ratio | Format |
|---|---|---|---|
| Profile photo | 800×800 | 1:1 | JPG, PNG |
Upload at 800×800 for the sharpest quality. Your YouTube profile photo displays as a circle across YouTube, Google Search, and other Google services. It appears next to your comments, community posts, and in search results — so it should be instantly recognisable at small sizes.
Ad Specifications
If you run YouTube ads, here are the key image and video specifications to keep in mind.
| Placement | Dimensions (px) | Aspect Ratio | Format |
|---|---|---|---|
| Video ad (skippable / non-skippable) | 1920×1080 or 3840×2160 | 16:9 | MP4 |
| Video ad (vertical) | 1080×1920 | 9:16 | MP4 |
| Display ad (companion banner) | 300×60 | 5:1 | JPG, PNG, GIF |
| Discovery ad thumbnail | 1280×720 | 16:9 | JPG, PNG |
For video ads, upload at the highest resolution your source material supports. Google's ad system will adapt the video for different placements and devices. According to Google Ads help, vertical video ads (9:16) now appear on YouTube Shorts, which significantly extends your reach.
Create professional thumbnails and graphics with AI. PostEverywhere's AI Image Generator creates YouTube-ready visuals at 1280×720, 2560×1440, or any custom size. Try it free →
Tips for YouTube Image Optimisation
1. Invest Time in Thumbnails
Your thumbnail is the biggest lever for views. Spend as much time on your thumbnail as you do on your video title. Test different styles and track your CTR in YouTube Analytics to learn what works for your audience. Use our social media analytics tools to monitor performance across platforms.
2. Design Banners with the Safe Zone in Mind
The 1546×423px safe area is non-negotiable. If your channel name or upload schedule is outside this zone, mobile viewers will never see it. Use a YouTube banner template to get the positioning right.
3. Upload at the Highest Resolution Available
YouTube creates all lower-resolution versions automatically. Uploading at 4K gives viewers the option of higher quality and signals to the algorithm that your content is high production value.
4. Use Custom Thumbnails for Shorts
Now that YouTube supports custom Shorts thumbnails, take advantage. A designed thumbnail performs better than an auto-selected video frame. Keep the design simple — Shorts thumbnails appear small in the feed.
5. Automate Your Publishing
If you are uploading to YouTube, Instagram, TikTok, and other platforms, doing everything manually is inefficient. PostEverywhere's social media scheduler lets you plan and publish to all platforms from one dashboard. Check our guides on how to schedule YouTube videos and how to schedule posts to multiple platforms.
For a complete overview of dimensions across all social networks, see our social media image sizes guide.
FAQs
What is the best YouTube thumbnail size?
The best YouTube thumbnail size is 1280×720px (16:9). This is YouTube's required minimum for custom thumbnails. The file must be under 2 MB and in JPG, PNG, GIF, or BMP format. Always design at exactly 1280×720 to avoid any cropping or black bars.
What size is a YouTube channel banner?
Upload your YouTube channel banner at 2560×1440px. However, the safe area where all text and logos should be placed is 1546×423px in the centre. This safe zone is visible on every device — phones, tablets, desktops, and TVs.
What resolution should I upload YouTube videos at?
Upload at 1920×1080 (1080p) minimum. If your camera supports it, upload at 3840×2160 (4K) for the best quality. YouTube will automatically generate all lower-resolution versions. Use MP4 format with H.264 video and AAC audio.
What size are YouTube Shorts?
YouTube Shorts should be 1080×1920px (9:16) vertical video. Shorts can be up to 3 minutes long. You can now upload custom thumbnails for Shorts at the same 1080×1920 dimensions.
Can I use the same vertical video for Shorts, Reels, and TikTok?
Yes. YouTube Shorts, Instagram Reels, Facebook Reels, and TikTok all use 1080×1920px (9:16). Create your vertical video once and distribute it everywhere using a cross-posting tool. The main differences are duration limits and platform-specific features like sounds and effects.
What is the YouTube Community post image size?
YouTube Community post images can be up to 1280×1280px (1:1 square) or 1920×1080px (16:9 landscape). The platform supports aspect ratios between 2:5 and 5:2. GIFs are supported up to 16 MB.
Founder & CEO of PostEverywhere. Writing about social media strategy, publishing workflows, and analytics that help brands grow faster.