What is the correct image size for a Threads Link Card?
When sharing an article or website on Threads, the platform automatically scrapes your site’s Open Graph (OG) tags to generate a Link Card. The official aspect ratio for a Threads Link Card is 1.91:1, meaning your image should be exactly 1200×630 pixels. If you upload a square or portrait image, Threads will awkwardly crop it, cutting off important details or text.
Our Threads Link Card Previewer allows you to upload any image, drag to position it perfectly within the 1.91:1 ratio, and download the correctly sized PNG asset directly to your device.
Threads Link Card Previewer
Visualize how your website links will look on the Threads feed. Drag your image to frame it perfectly, and export exact 1200×630 Open Graph assets.
How to Use the Threads Previewer
Ensuring your links look professional on social media takes just a few seconds:
- Type Your Metadata: Enter the text you want to appear in the post, the domain name (e.g., yourwebsite.com), and the Link Title into the sidebar controls. The live feed preview will update instantly.
- Upload Your Image: Drag and drop your image into the tool. It will automatically populate inside the Threads mockup card.
- Drag to Crop: The tool automatically scales your image to cover the 1.91:1 window. Click and drag your mouse over the image in the preview to pan it up, down, left, or right until the subject is perfectly framed.
- Export OG Asset: Click Export 1200×630 OG Asset. The engine will mathematically crop your photo based on your panning position and download a mathematically perfect 1200×630 pixel PNG. You can now upload this image to your CMS (WordPress, Webflow, Shopify) as your featured SEO image!
- Save UI Mockup: Click Save UI Mockup to download a high-resolution PNG of the entire Threads post (including the avatar, text, and icons) to send to clients for approval or use in marketing portfolios.
Why Open Graph (OG) Images Matter
Based on the most common frustrations from social media managers and developers, we engineered this tool to solve the specific formatting rules of the Threads algorithm.
1. Preventing Bad Crops
The most common mistake brands make is setting a square (1:1) image as their article’s featured image. While this looks great on an Instagram grid, when that article is pasted into Threads, Facebook, or X (Twitter), the platform’s crawler grabs the center slice of the image, usually cutting off people’s heads or cutting text in half. Using our tool to export a dedicated 1.91:1 asset ensures your link cards always look intentional and professional.
2. Client Approvals Made Easy
If you run an agency, getting a client to approve a social media post often involves clunky spreadsheets. By using the “Save UI Mockup” feature, you can generate a pixel-perfect snapshot of exactly how the post will look on a user’s phone, complete with realistic sizing and interaction icons.
3. Client-Side Privacy
Testing unreleased product images or sensitive blog links on free online tools can be a privacy risk. We engineered this previewer using local HTML5 Canvas APIs. All image cropping and rendering happens directly within your computer’s memory. Your files and metadata are never uploaded to our servers, ensuring absolute privacy.
Frequently Asked Questions (FAQ)
Does this tool support WebP and JPG?
Yes. You can upload any standard image format (PNG, JPG, WebP). The engine will process the image and export it as a high-quality PNG to ensure maximum compatibility.
What is an Open Graph (OG) Tag?
Open Graph tags are snippets of code in the <head> of your website that tell social media platforms what image, title, and description to display when someone pastes your link into a post. The image you download from this tool should be uploaded to your website and set as the og:image.
Why isn’t my image panning left or right?
Our dynamic scaling engine automatically ensures your image covers the entire 1.91:1 frame without leaving white space. If you uploaded an image that is very tall (portrait), it will fit to the width, meaning you can only pan up and down. If you uploaded a very wide panorama, you will only be able to pan left and right.