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Compare and verify your graphics against visual dimensions for Instagram, YouTube, and Facebook.
Planning to launch a social marketing campaign? Don't let auto-crops ruin your designs. Our Free online Social Post Size Guide & Checker compares your graphics against current templates for Instagram, YouTube, Facebook, LinkedIn, and X (Twitter).
Each social media platform uses unique layout structures to display images on timelines and user feeds. If you upload a graphic with incorrect dimensions, the network's automatic compression systems will crop the sides, stretch the image, or add black borders. Even worse, important text or branding logos can be cut off, making your content look amateurish. Checking sizes before publishing ensures your graphics look sharp on both desktop grids and mobile feeds.
Keep your campaign designs aligned with these primary platform recommendations:
If you need to resize your images to fit these exact dimensions, use our Image Resizer. If you need to trim margins, use our Image Cropper.
For more details, check Facebook Cover Specs, refer to Instagram Image Guidelines, and review formatting recommendations at the Twitter/X Business Help Center.
A social post size checker is an interactive layout diagnostic tool designed for graphic creators and social managers. When you upload a cover, banner, or timeline graphic, the tool reads its physical dimensions and displays interactive overlay crop masks for platforms like Instagram, YouTube, Facebook, LinkedIn, and Twitter/X. This lets you inspect whether your design fits within recommended boundaries or will be cropped.
Instagram supports three main feed image dimensions: Square posts (`1080 x 1080` pixels with a `1:1` aspect ratio), Portrait posts (`1080 x 1350` pixels with a `4:5` aspect ratio), and Landscape posts (`1080 x 566` pixels with a `1.91:1` aspect ratio). Instagram Stories and Reels use vertical layouts at `1080 x 1920` pixels (`9:16`).
YouTube recommends a banner size of `2560 x 1440` pixels, with a maximum file size of 6MB. However, YouTube crop masks display differently across devices. The 'safe area' for text and logos is the central region of `1546 x 423` pixels. Banners uploaded outside this safe area will have text cut off on mobile or desktop player screens.
For single image posts on Twitter/X, the recommended dimensions are `1200 x 675` pixels (a `16:9` aspect ratio). For Twitter card link previews, a ratio of `1.91:1` (`1200 x 628` pixels) is standard. Twitter header banners should be designed at `1500 x 500` pixels.
When you upload an image, our tool uses client-side JavaScript to extract the raw pixel width and height. It divides the width by the height and compares the resulting decimal value against standard aspect keys (like `1.777` for `16:9` or `1.333` for `4:3`), giving you a clear pass/fail status.
Facebook displays link previews in two layouts. If your featured webpage image is smaller than `600 x 315` pixels, Facebook renders it as a small square thumbnail on the left of the link text. To get a large, full-width click card preview, ensure your page's Open Graph image is at least `1200 x 630` pixels.
Yes, it is 100% free and runs client-side in your browser. We never upload your images to any remote servers, ensuring absolute privacy for your pre-release campaign graphics and templates.
Instant, browser-local utilities to streamline your digital workflows.