Introduction
Whether you need a 1200×630 OG image for your website, a 400×400 profile picture, or a 300 DPI print-ready version of your logo — our image resizer handles all dimensions with pixel-perfect accuracy.
Try Image Resizer Free
No signup required. Works in any browser on desktop and mobile.
Open Image ResizerResize Modes Available
- Pixels — Enter exact width and height in pixels
- Percentage — Scale to 50%, 200%, etc. of original size
- Preset Sizes — Select from 30+ presets (social media, print, web)
- Longest Side — Fit within a max dimension while preserving ratio
Standard Image Sizes Reference
| Use Case | Width × Height |
|---|---|
| Instagram Square | 1080 × 1080 |
| YouTube Thumbnail | 1280 × 720 |
| Facebook Cover | 851 × 315 |
| Open Graph (og:image) | 1200 × 630 |
| Twitter/X Card | 1200 × 675 |
| A4 Print (300 DPI) | 2480 × 3508 |
| Standard Profile Pic | 400 × 400 |
How to Resize an Image Online
Upload Image
Upload JPG, PNG, WebP, or HEIC. View current dimensions shown automatically.
Enter New Dimensions
Type width and height in pixels. Toggle aspect ratio lock to prevent stretching.
Download
Download the resized image at full quality. See file size before downloading.
Avoid Stretching with Aspect Ratio Lock
Always keep aspect ratio lock ON unless you specifically want to stretch. Changing only the width will automatically adjust height proportionally.
Frequently Asked Questions
Yes — upload up to 20 images and apply the same dimensions to all in one click.
Reducing size loses some pixels (expected). Increasing size beyond the original may look soft — use our AI Upscaler for better results when enlarging.
Enable the aspect ratio lock (chain icon). Change only width OR height and the other adjusts automatically.
Yes — enter a target file size (e.g., under 1MB) and the tool will adjust dimensions and quality to match.
Yes — PNG transparency is preserved during resizing.
Images up to 50MB and 10,000 × 10,000 pixels are supported.
Ready to Try It?
Use Image Resizer for free — no account, no download, no watermarks.
Open Image Resizer at ToolMatrix