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Resize Image
Drag files here orclick to upload
2 files, max 6M each
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About This Tool
Resize Image is a completely free online image resize tool supporting pixel and percentage modes with aspect ratio lock, all processed locally.
How to Use
- Add Image
Click "Add File" or drag and drop images; batch upload supported.
- Set Dimensions
Choose by pixel or by percent mode and enter target dimensions.
- Download
Click "Download Single" or "Download All" when satisfied.
Use Cases
- Reduce large images to fit web pages or documents
- Enlarge images for high-resolution output
- Batch-resize images to the same dimensions
Key Advantages
- Completely Free
No payment or registration needed; unlimited use.
- Privacy Safe
All processing is done locally; files are never uploaded.
- Dual Mode
Supports both exact pixel sizing and percentage scaling.
- Aspect Ratio Lock
Lock aspect ratio with one click to prevent image distortion.
- Batch Processing
Add multiple images, apply unified dimensions and download as ZIP.
Mode Details
Understanding the two resize modes:
| Mode | Feature | Use Case |
|---|---|---|
| By Pixel | Set exact pixel dimensions | Precise output needed |
| By Percent | Scale by ratio up or down | Proportional resizing |
| Auto Width/Height | Set one side to 0 for auto calc | Constrain one dimension |
FAQ
Image resize tool is a free online tool to resize images by pixel or percentage with aspect ratio lock to prevent distortion.
Upload an image, choose by pixel or by percent mode, enter dimensions, download. Batch supported.
Common browser-decodable formats (JPG / PNG / WebP, etc.) are supported; output is PNG.
When enabled, the tool automatically calculates the proportional dimension, ensuring the image is not distorted or stretched.
Enlarging stretches pixels; clarity depends on original resolution. Start from a high-res original for best results.
Yes. Add multiple images, apply unified dimensions, batch convert and download as ZIP.
Enter 1-200; 100 = original size, 50 = half size, 200 = double size.
Images are processed entirely in your browser and never uploaded to any server.
Yes. The tool is responsive and works on mobile and tablet browsers.
Output is PNG with transparent background preserved, lossless quality.
Ensure images are not corrupted, refresh and retry, or try a different browser.
Completely free, no registration needed. Generous daily quota provided.
Content last updated：2026-07-10
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