Image Tools
Image Compressor
Compress JPG, PNG, WebP, and GIF images online to reduce file size without visible quality loss.
Image Resizer
Resize images to exact dimensions or percentage while maintaining aspect ratio.
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What is the Image Resizer?
The Free Image Resizer allows you to instantly scale your photos to exact pixel dimensions or relative percentages right in your browser, ensuring they fit perfectly into your website or social media layouts.
How to Use
- Drag and drop an image onto the tool, or click to browse your files.
- Enter your desired exact Width and Height in pixels.
- Toggle the "Lock Aspect Ratio" switch to prevent the image from stretching.
- Alternatively, use the Percentage slider to quickly halve or double the image size.
- Click "Resize Image" and download the final result.
Common Use Cases
- Scaling down large 4K photographs to fit into a 800px blog post layout.
- Preparing profile pictures or banners to meet strict social media dimension requirements.
- Reducing the physical dimensions of images to improve website loading speeds (Core Web Vitals).
Key Benefits
- 100% private and secure—images are never uploaded to any server.
- Fast and instant local browser processing.
- Completely free with no hidden watermarks or premium paywalls.
Frequently Asked Questions
Can I resize without losing aspect ratio?
Yes. Enable the "Lock Aspect Ratio" option and the tool will automatically calculate the proportional height or width.
Does resizing an image reduce its quality?
Downsizing (making an image smaller) generally retains high quality and sharpness. Upsizing (making an image larger) can cause pixelation and blurriness because the browser has to invent new pixels.
What is aspect ratio?
Aspect ratio is the proportional relationship between an image\'s width and height (e.g., 16:9 or 4:3). Locking it prevents your image from looking stretched or squished.
Are my images uploaded to your servers?
No. Our Image Resizer uses the HTML5 Canvas API to process your images entirely within your web browser. Your photos never leave your computer.
What image formats do you support?
You can upload and resize JPG, PNG, WebP, and BMP images. The output file will maintain the original format.
How do I resize an image by percentage?
Toggle the input mode from "Pixels" to "Percentage". Entering 50% will reduce the image to exactly half its original width and height.
Why is my resized PNG file larger than the original?
Browsers use different compression algorithms when exporting Canvas data. If you need a smaller file size, run the resized image through our Image Compressor.
Can I resize images for Instagram or Facebook?
Yes! You can manually enter the recommended dimensions. For example, Instagram squares are typically 1080x1080 pixels, while Facebook covers are 820x312 pixels.
What is the maximum file size I can upload?
Because processing happens locally in your browser, there is no hard file size limit. However, extremely large images (over 50MB) may slow down or crash older browsers.
Is this tool free to use?
Yes! Our Image Resizer is 100% free, requires no account, and adds absolutely no watermarks to your finished images.
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