Image Resizer
Resize images by exact dimensions or percentage, with aspect-ratio lock and PNG, JPEG, or WebP output with quality control. All processing happens locally in your browser with no upload.
Secure & Private Client-Side
This tool runs entirely in your browser. No data is sent to any server, ensuring your information remains private and secure.
About Image Resizer
Resize images by exact dimensions or percentage, with aspect-ratio lock and PNG, JPEG, or WebP output with quality control. All processing happens locally in your browser with no upload.
Frequently Asked Questions
Which image formats are supported? expand_more
PNG, JPEG, WebP, GIF (first frame), and BMP input. Output can be PNG, JPEG, or WebP with adjustable quality.
Will resizing reduce file size? expand_more
Usually yes for downsizing, but PNGs do not always shrink. For aggressive compression try the [Image Compressor](/tools/image-compressor/).
How do I keep the aspect ratio? expand_more
Enable "Maintain aspect ratio" and the height updates automatically based on the width you enter, or vice versa.
Need favicons specifically? expand_more
Use the [Favicon Generator](/tools/favicon-generator/) which outputs every standard size in one pass.
Is my image uploaded? expand_more
No. All resizing happens locally in your browser.
Common Use Cases
- Web Optimization: Shrink large photos before uploading to a CMS.
- Social Media: Resize images to platform-specific dimensions.
- Email: Compress banners to fit email client limits.
- Print: Scale images to print-ready sizes without losing detail.