Image Resizer
Drop an image and resize it by exact pixels or percentage. Lock the aspect ratio, pick a preset, then preview and download — all on your device.
1. Image & size
Canvas · localDrop an image here
or click to browse · or paste with Ctrl/Cmd + V
2. Preview & export
—About Image Resizer
The Image Resizer changes an image’s dimensions by exact pixels or a percentage, with an option to lock the aspect ratio. It is for anyone fitting an image to a layout, avatar slot, or platform requirement.
Uploading oversized images wastes bandwidth and breaks layouts. Resizing to the exact dimensions you need — locally — produces a correctly sized file without a server round-trip.
Step by step
- Drop an image you want to resize into the tool.
- Enter a target width or height in pixels, or scale by percentage.
- Keep the aspect-ratio lock on to avoid distortion, or unlock it for an exact box.
- Optionally choose a preset size for common targets.
- Preview the result and download it.
What it offers
- Resize by pixels or percentage
- Aspect-ratio lock to prevent stretching
- Presets for common dimensions
- Live preview at the new dimensions
Tips for best results
- Only scale down when you can; enlarging an image cannot add detail and looks soft.
- Keep the aspect ratio locked unless a layout truly needs a fixed, different shape.
- Resize to the largest size you will actually display, not larger.
Why people use it
Exact dimensions
Hit a specific pixel size for any layout or platform.
No distortion
The ratio lock keeps proportions correct.
Lighter files
Smaller dimensions usually mean smaller files too.
Private
Resizing happens entirely in your browser.
Common questions
This runs entirely in your browser
No file or text you enter here is uploaded. Encoding and decoding happen on your device using native browser APIs — close the tab and nothing remains on a server.