Social Media Image Resizer
Resize and optimise images instantly for Instagram, YouTube, Facebook, LinkedIn, Twitter, Pinterest, and more — right in your browser.
This tool resizes an image to the exact dimensions each social platform expects — Instagram posts and stories, YouTube thumbnails, Facebook covers, LinkedIn banners and more. Pick the target, adjust the crop, and export at the right size, avoiding the automatic cropping platforms apply to mis-sized uploads.
Recommended Social Media Image Sizes
Platform guidelines as of 2026 — all presets above match these dimensions exactly.
| Platform | Image Type | Dimensions | Aspect Ratio |
|---|---|---|---|
| Post | 1080 × 1080 | 1:1 | |
| Story / Reel | 1080 × 1920 | 9:16 | |
| YouTube | Thumbnail | 1280 × 720 | 16:9 |
| Cover Photo | 820 × 312 | ~2.6:1 | |
| Profile Banner | 1584 × 396 | 4:1 | |
| Twitter / X | Header Photo | 1500 × 500 | 3:1 |
| Profile Photo | 500 × 500 | 1:1 | |
| Standard Pin | 1000 × 1500 | 2:3 |
Tips for Better Social Media Images
Make every pixel count with these creator-tested best practices.
Platform algorithms may crop or compress images that don't match recommended sizes. Exact dimensions ensure your image displays as intended on all devices.
Use the Custom background fill to match your brand colours. Consistent colour usage across posts builds instant visual recognition in crowded feeds.
When resizing a portrait photo for a landscape preset (like YouTube Thumbnail), use Blur background to fill the side bars with a stylish, matching background.
JPG at 90% quality is the ideal format for social media uploads — small file size, fast upload. Use PNG for designs with transparency or text-heavy graphics.
Some platforms (Instagram, Facebook) overlay UI elements near the edges of cover photos. Keep faces, logos, and text away from the outer 10% of the frame.
Download your image, open it on your phone, and check that text is readable and faces are centred before uploading to the platform.
About This Tool
Canvas-Based Rendering
All image processing uses the browser's native HTML Canvas API. There is no image uploaded to any server. Your files are read locally via FileReader and rendered at the exact platform resolution.
Drag to Reposition
After uploading, drag directly on the preview canvas to reposition your image within the frame. Use the Zoom slider to scale, and Fit / Fill buttons for quick framing.
Full-Resolution Export
The preview on screen is scaled down to fit your display, but the download is always at the full preset resolution. A 1080×1080 Instagram Post will be downloaded as a 1080×1080 pixel image.
100% Private
Your images never leave your device. No accounts, no cloud storage, no analytics on your content. The tool works offline once the page is loaded.
How to use
Upload your image
Add the photo or graphic you want to resize. It loads into the canvas locally, with no upload to a server.
Choose a platform preset
Pick the destination — Instagram post or story, YouTube thumbnail, Facebook cover, LinkedIn banner and more. Each preset uses that platform's exact pixel dimensions.
Adjust the framing
Reposition and zoom the image inside the preset frame so the important part is not cut off when the platform crops it.
Export at the right size
Download the resized image. Because it already matches the target dimensions, the platform will not re-crop or downscale it on upload.
At a glance
- Presets
- Instagram posts and stories, YouTube thumbnails, Facebook covers, LinkedIn banners and more
- Why it matters
- Platforms crop mis-sized uploads automatically, usually cutting exactly what you wanted kept
- Framing
- Reposition and zoom inside the preset frame before exporting
- Output
- Exact platform dimensions, so no further cropping is applied on upload
Frequently asked questions
Quick answers about this free online tool.
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