Social Media Video Sizes: Complete 2026 Guide

You searched for "Social Media Video Sizes 2026 Guide," didn't you? And chances are, you're drowning in a sea of conflicting aspect ratios, pixel dimensions, and recommendations that feel like they change with the wind. You need to know, definitively, what size video to upload to Instagram Reels, TikTok, YouTube Shorts, Facebook Stories, and LinkedIn, and you need it to look *good* on every device. Stop the endless tab-switching and the frustrating re-uploads. Getting your video dimensions right isn't just about avoiding black bars; it's about maximizing viewer engagement and ensuring your message cuts through the noise. Let's cut through the confusion and get your videos looking sharp, everywhere.

TikTok & Instagram Reels: Vertical Domination

In 2026, the vertical video format continues its reign, particularly on platforms like TikTok and Instagram Reels. These short-form, attention-grabbing videos are designed for mobile-first consumption, meaning they fill the entire screen. The optimal resolution for both is 1080 pixels wide by 1920 pixels tall (1080x1920), resulting in a 9:16 aspect ratio. Uploading videos in this exact dimension ensures they play without cropping or letterboxing, providing the most immersive experience for your audience.

While many users simply shoot vertically on their phones, the real magic happens when you take that footage and refine it. You might want to trim unnecessary seconds, rotate footage that was accidentally shot sideways, or ensure the key action is centered within the frame. This is where tools like the OptiPix Video Resizer become indispensable. Instead of wrestling with complex desktop software or risking privacy by uploading your content, you can process your videos entirely in your browser. Our tool allows you to quickly adjust the canvas size and ensure your 1080x1920 video fits perfectly, without any uploads or account creation. It’s about making your content look professional with minimal fuss.

YouTube Shorts, Facebook & Instagram Stories: The 9:16 Standard

The story for YouTube Shorts, Facebook Stories, and Instagram Stories is largely the same as TikTok and Reels: 9:16 aspect ratio. The recommended resolution remains 1080x1920 pixels. These platforms are all vying for that prime vertical real estate in users' hands. If you're creating content for these platforms, sticking to this vertical standard is non-negotiable for maximum impact. Think about the user experience: they're scrolling, swiping, and tapping, often with one hand. A video that instantly fills their screen without any awkward cropping or empty space is far more likely to hold their attention.

However, it's not just about the dimensions. Sometimes, you might have a horizontal video that you want to adapt for these vertical formats. This is a common challenge. Simply stretching a horizontal video to fit a vertical frame looks terrible. The best approach is to create a vertical canvas and then place your horizontal video within it, perhaps with a blurred background matching the video's colors or a solid color. This is where the versatility of a tool like the OptiPix Video Resizer truly shines. You can set the output to 1080x1920 and then strategically place your existing footage, ensuring a polished look. And remember, all processing happens locally on your device – zero uploads, zero privacy concerns.

Facebook Feed, Instagram Feed & LinkedIn: Horizontal & Square Options

While vertical video dominates short-form content, traditional horizontal and square formats still hold significant ground, especially on platforms like the Facebook Feed, Instagram Feed, and LinkedIn. For these platforms, a 16:9 aspect ratio (horizontal) remains a safe bet, with a common resolution of 1920 pixels wide by 1080 pixels tall (1920x1080). This is the standard for most landscape video, like cinematic footage or screen recordings.

However, the 1:1 aspect ratio (square), typically 1080x1080 pixels, has seen a resurgence, particularly on Instagram's main feed. Square videos often perform well because they take up more screen real estate in the feed than 16:9 videos, leading to higher visibility and engagement. LinkedIn also benefits from square videos, as they tend to stand out in the professional network's feed. When resizing, consider the primary viewing context. Is your video meant for a quick scan in a busy feed, or a more focused viewing experience? If you're repurposing content, you might need to crop or adjust your original footage. Tools like the OptiPix Video Resizer can help you quickly convert your videos to these common feed dimensions without compromising your original file or sending it anywhere. If you're working with footage that needs more than just resizing, like cutting out unnecessary parts, our OptiPix Video Trimmer is excellent for that, also processing entirely in your browser.

Twitter (X) & General Best Practices

Twitter (now X) can be a bit more forgiving, but sticking to standard dimensions is still wise. For optimal viewing on both desktop and mobile, consider 16:9 (1920x1080 or 1280x720) for landscape videos or 1:1 (1080x1080) for square videos. Avoid overly long videos; shorter, punchier content generally performs better across all platforms.

The overarching principle for 2026 is to know your platform and your audience. A video perfectly sized for TikTok might look strange on a LinkedIn feed, and vice versa. Always consider where your video will be viewed most often. Consistency in your branding and messaging is key, and that includes consistent video presentation. Don't let incorrect aspect ratios or resolutions be the reason your message gets lost. If you're dealing with videos that are sideways or upside down, our OptiPix Video Rotator can fix that in a flash, no uploads needed. Similarly, if you need to convert a video format, the Video to MP4 converter handles that entirely client-side.

Ultimately, creating engaging video content is challenging enough. Optimizing it for every social media platform shouldn't add to the burden. With the right tools, you can ensure your videos look their absolute best, reaching the widest possible audience without sacrificing privacy or speed.

Try it free at OptiPix.art