Image Resizer
Resize images by pixels or percentage with aspect ratio lock.
Drop an image here or click to upload
Supports JPG, PNG, WebP
How to Use the Image Resizer
Upload an image by dragging it into the dropzone or clicking to browse. Then set your desired output dimensions using pixels or percentage mode.
Resize Options
- Pixels Mode — Enter exact width and height in pixels. Enable "Keep aspect ratio" to maintain proportions automatically.
- Percentage Mode — Scale the image by a percentage of its original size. Values over 100% upscale the image.
How It Works
The tool uses the HTML5 Canvas API to redraw your image at the new dimensions. Click "Resize" to generate the output, then download the result as a PNG file.
Frequently Asked Questions
Does resizing reduce image quality?
Downscaling (making the image smaller) generally preserves quality well. Upscaling (making it larger) can cause blurriness since new pixels must be interpolated from existing ones.
What is the maximum image size I can resize?
The tool works entirely in your browser, so the limit depends on your device memory. Most modern devices handle images up to 4096x4096 pixels without issues.
Can I resize to exact dimensions for social media?
Yes. Enter the exact pixel dimensions you need. Common sizes: Instagram post (1080x1080), Facebook cover (820x312), Twitter header (1500x500).
Is my image uploaded to a server?
No. All resizing happens locally in your browser. Your image never leaves your device.
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