About this tool
Social Media Sizer covers all the major platforms — LinkedIn, Twitter/X, Instagram, Facebook and YouTube — with preset dimensions for profile photos, banners, posts and stories. Crop to fill or letterbox with a custom background.
How it works
- 1Upload your image and select a platform.
- 2Choose a preset (profile, banner, post, story etc.).
- 3Select Crop (fill to centre) or Letterbox (fit with background).
- 4Download at the exact required pixel dimensions.
Common use cases
- ✓Resizing profile photos for multiple platforms
- ✓Creating correctly sized LinkedIn banners
- ✓Preparing Instagram stories at 1080×1920
- ✓YouTube thumbnail creation at 1280×720
Privacy first. Social Media Sizer runs entirely inside your browser using the HTML5 Canvas API. Your images are never uploaded to any server, stored anywhere or shared with third parties. Everything happens locally on your device.
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Ready to use Social Media Sizer?
No account required. Works in any modern browser.
Open Social Media Sizer