Image Resizer
Exact pixel dimensions with the aspect ratio handled for you. Drop the image first — its current size loads into the boxes automatically.
JPG · PNG · WebP
Runs 100% in your browser — this image is never uploaded.
Common target sizes
| Use | Dimensions |
|---|---|
| Instagram post (square) | 1080 × 1080 |
| Instagram story / Reel | 1080 × 1920 |
| Facebook cover | 820 × 312 |
| YouTube thumbnail | 1280 × 720 |
| X / Twitter header | 1500 × 500 |
| LinkedIn profile photo | 400 × 400 |
| Full HD wallpaper | 1920 × 1080 |
Common questions
How do I resize an image without losing quality?
Downscaling (making smaller) keeps quality excellent — the tool uses high-quality resampling. Upscaling (enlarging) always softens detail because pixels that don't exist can't be invented; keep enlargements under ~150% for acceptable results.
How do I resize an image to exact pixels?
Drop the image, type your width (and height, or leave aspect lock on so it's computed), and download. The output is exactly the pixels you typed — useful for profile photos, marketplace listings, and upload requirements.
Does resizing change the file format?
No — PNG stays PNG (transparency preserved), everything else outputs as high-quality JPG. Need a different format? Run the result through the converter.
Are my photos uploaded anywhere?
Never. Resizing happens in your browser on your own device — nothing is sent to a server, stored, or viewed.