Does Image Resizer upload my image?
Image Resizer reads the selected input into browser memory and performs its documented operation on this device. It does not submit the source file to ImgNimble while using this browser-first workspace.
Optimize · Browser-first processing
Resize an Image by Pixels or Percentage
Enter a width, height or scale percentage and export a new image without changing the source file.
Processed on this deviceFREE tier
Image ResizerProcessed on this device
or drop files here
Selected files stay in this browser tab.
Preview and result
Local browser processingSelect a supported file or enter the requested values, then run the tool.
This browser tool does not upload the selected source to ImgNimble. Closing or refreshing clears the selected files and generated result from the page.
Common questions
How this tool behaves
What does Image Resizer create?
A resized JPEG, PNG or WebP file at the requested dimensions.
What limitation should I check before using Image Resizer?
Upscaling cannot recreate missing detail. Large dimensions may exceed the browser canvas limit or available memory.
What inputs work best with Image Resizer?
Image Resizer validates the selected file before processing. Use JPG, JPEG, PNG, WEBP, GIF, HEIC, HEIF, SVG within the 40 MB per-file limit. Keep an untouched original for comparison.
What happens to my file after I finish with Image Resizer?
The Image Resizer Online workflow runs in browser memory. ImgNimble does not receive the source file for this local operation; refreshing or closing the page clears the selected input and generated in-page result.
Practical checks
Before you use the output
A practical production task
Enter a width, height or scale percentage and export a new image without changing the source file.
Verify before replacing the original
Keep the source, download the Image Resizer result as a new file, and verify dimensions, transparency, colour, metadata and visual detail before replacing any production asset.