Image tool
Image Resizer
Resize images by exact pixels, by percentage, or by a practical preset without leaving the browser. The linked width and height controls help you keep proportions under control before you generate the final file.
- Browser only
- Preset sizes
- No upload
- JPG, PNG, WebP
Privacy notice
Processing happens locally through browser image decoding and canvas rendering.
Choose an image
Drop an image here
or use the button below to choose a file.
Accepted formats: JPG, PNG, WebP. Files stay on your device in this release.
No file selected.
Preview
Preview appears here after you choose a file.
Settings
Result
Generate a file to view the result summary.
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How to use this route
Follow the published workflow step by step and compare the real output before downloading.
- Choose a source image and review the original dimensions.
- Pick a preset, set a percentage, or enter exact pixel values.
- Keep the aspect ratio locked unless you intentionally want a stretched result.
- Choose the output format, process the image, and download the resized file.
Supported behavior
The browser handles the work locally, but different formats and export paths still have trade-offs.
- Presets are designed for common publishing use cases such as Instagram and website heroes.
- You can still override preset dimensions manually after selecting one.
- Quality control appears for JPEG and WebP output.
Good fits for this tool
Use this route when the task matches these common situations.
- Prepare social images before posting.
- Reduce oversized website assets to the actual display size.
- Create consistent thumbnails or profile images.
Limits to know
These limits are part of the real implementation and the browser platform it depends on.
- Stretching an image by unlinking aspect ratio can distort the result.
- Upscaling adds pixels but does not restore detail that was missing in the source.
- WebP output depends on browser support.
Privacy notes
The current release is designed around browser-first local processing.
- Processing happens locally through browser image decoding and canvas rendering.
Related tools
Keep moving through adjacent image tasks without leaving the published catalog.
Related guides
Read the supporting trade-offs behind this workflow.
Best Image Sizes for Websites
A quick planning guide for practical web image dimensions.
How to Reduce Image Size Without Losing Too Much Quality
A practical guide to balancing image quality and file size.
JPG vs PNG vs WebP: Which Image Format Should You Use?
A practical comparison of JPG, PNG, and WebP.
How to Convert JPG to WebP
A step-by-step guide to converting JPG images to WebP.
Image Resizer FAQ
Common questions about this route and its current behavior.
Should I resize before compressing?
Often yes. Removing unnecessary pixels first can reduce file size more effectively than pushing quality too low.
Can I make a very small image sharp again by enlarging it?
No. Upscaling can make an image larger in dimensions, but it cannot recreate source detail that was never captured.