Image Resizer
Resize images by exact pixels, by percentage, or by a practical preset without leaving the browser. The linked width and height controls help you keep proportions under control before you generate the final file.
Generate a file to view the result summary.
How to use Image Resizer
- Choose a source image and review the original dimensions.
- Pick a preset, set a percentage, or enter exact pixel values.
- Keep the aspect ratio locked unless you intentionally want a stretched result.
- Choose the output format, process the image, and download the resized file.
Supported behavior
- Presets are designed for common publishing use cases such as Instagram and website heroes.
- You can still override preset dimensions manually after selecting one.
- Quality control appears for JPEG and WebP output.
Best for
- Prepare social images before posting.
- Reduce oversized website assets to the actual display size.
- Create consistent thumbnails or profile images.
Limits
- Stretching an image by unlinking aspect ratio can distort the result.
- Upscaling adds pixels but does not restore detail that was missing in the source.
- WebP output depends on browser support.
Privacy notes
- Processing happens locally through browser image decoding and canvas rendering.
Related tools
Related guides
Image Resizer FAQ
Should I resize before compressing?
Often yes. Removing unnecessary pixels first can reduce file size more effectively than pushing quality too low.
Can I make a very small image sharp again by enlarging it?
No. Upscaling can make an image larger in dimensions, but it cannot recreate source detail that was never captured.