Every platform has its own size
Post the same image to Instagram and YouTube as-is and it gets cropped or letterboxed. This tool resizes to each platform's recommended ratio and dimensions.
| Use | Ratio | Pixels (recommended) |
|---|---|---|
| Instagram square | 1:1 | 1080 × 1080 |
| Instagram story | 9:16 | 1080 × 1920 |
| YouTube thumbnail | 16:9 | 1280 × 720 |
| Blog cover image | 1.91:1 | 1200 × 630 |
Crop vs. fit
- Crop: trims to the ratio. Cleanest, but edges get cut — keep the key subject centered.
- Fit (pad): shows the whole original and fills the gaps with a background color. Best for logos that must not be cut.
Pair it with compression
If the resized file is still heavy, run it through the image compressor to speed up uploads. Everything is processed in your browser. For exact per-platform specs, see the social media image size guide.