Resize photos to any size
Every platform wants a different picture size: square for Instagram posts, tall for Stories, wide for YouTube thumbnails and covers. This image resizer changes a photo to exact pixel dimensions or a percentage, keeps the proportions so nothing looks stretched, and includes one-tap presets for the most common sizes. It works on your phone, and your photos never leave your device.
How to use it
- Choose a photo.
- Tap a preset, type a width or height, or pick a percentage.
- If the preset's shape differs from your photo, choose Fill (crop edges) or Fit (white bars).
- Tap Resize, check the preview and download.
Keeping the aspect ratio
New height = New width × (Original height ÷ Original width)
Example
A 4000 × 3000 photo resized to 1600 px wide becomes 1600 × (3000 ÷ 4000) = 1600 × 1200. Using the Instagram portrait preset (1080 × 1350) with “Fill”, the sides are cropped evenly so the photo fills the 4:5 frame; with “Fit”, it is scaled to fit and white bars are added top and bottom.
Common image sizes
| Use | Size (px) |
|---|---|
| Instagram post | 1080 × 1080 |
| Instagram portrait | 1080 × 1350 |
| Story / Reel | 1080 × 1920 |
| YouTube thumbnail | 1280 × 720 |
| WhatsApp DP | 500 × 500 |
| Facebook cover | 820 × 312 |
| LinkedIn banner | 1584 × 396 |
| Full HD | 1920 × 1080 |
Want a smaller file rather than fewer pixels? Use the image compressor. To choose exactly which part stays, use crop image.