Social Media Resizer

Free

Resize and crop images to exact dimensions for Instagram, Facebook, X, LinkedIn, Pinterest, YouTube, and TikTok. Choose fill (crop) or fit (letterbox) mode. Live preview.

Tool workspace

Upload images to see live previews

Social Media Dimensions

The Square Era

Instagram originally forced every photo into a 1:1 square. The portrait and landscape options did not arrive until 2015 — five years after launch. The square is still the safest bet for maximum feed visibility.

YouTube Thumbnail Psychology

Bright colors, human faces, and high contrast get the most clicks on YouTube. The 1280×720 thumbnail is your billboard — viewers decide whether to watch in less than a second.

The 2:3 Sweet Spot

Pinterest pins perform best at a 2:3 ratio (1000×1500). Taller pins get more engagement because they take up more screen space as users scroll through their feed.
Pro Tip: Use "Fill (Crop)" when your subject is centered and you want to fill the entire frame. Use "Fit (Letterbox)" when you need to preserve every pixel of the original image.
All processing happens in your browser. Your files are never uploaded to any server.
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