Image Resizer
Resize image dimensions by exact pixels or percentage with aspect-ratio lock.
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How to Use Image Resizer
- 1Upload your image.
- 2Specify target width, height, or scale percentage.
- 3Aspect ratio automatically locks to prevent visual distortion.
- 4Download your resized image instantly.
Technical Specifications & Capabilities
| Input Formats | JPG, JPEG, PNG, WebP, AVIF |
|---|---|
| Output Format | Same as Input (or WebP/JPG) |
| Transparency Support | Preserved for PNG & WebP |
| Compression Type | Bilinear Canvas Resampling |
| Processing Engine | Browser HTML5 Canvas Resampling |
| Max File Size Limit | 25 MB per file limit |
| Max Pixel Boundary | 50 Megapixels maximum boundary |
Common Use Cases
- •Resizing social media header images to exact dimensions (e.g. 1200x630 px).
- •Scaling down high-resolution images for web page performance.
- •Creating thumbnail images.
Zero Upload Privacy Architecture
PixelLocal operates entirely within your browser memory. When you select a photo, your browser decodes and processes the pixel data locally using HTML5 Canvas and WebAssembly. Your files are never transmitted over the internet, logged, or stored on remote servers.
Troubleshooting & Known Limitations
- ⚠️Unlock the aspect ratio checkbox if you intentionally require non-proportional stretching.
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Frequently Asked Questions
Does aspect ratio lock prevent stretching?
Yes. When aspect ratio lock is enabled, typing a new width automatically computes the proportional height.