Inspect · Browser-first processing

Check Whether an Image Looks Blurry

Analyse luminance edges locally and compare the score with a configurable practical threshold.

Processed on this deviceFREE tier
Blur and Sharpness Tester processing workspace
Blur and Sharpness TesterProcessed on this device
or drop files here Selected files stay in this browser tab.

Preview and result

Local browser processing

Select 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

Does Blur and Sharpness Tester upload my image?

Blur and Sharpness Tester 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.

What does Blur and Sharpness Tester create?

A sharpness score, classification and sampled edge preview.

What limitation should I check before using Blur and Sharpness Tester?

There is no universal blur threshold. Noise, texture and image size affect the score, so compare similar images rather than treating it as certification.

What inputs work best with Blur and Sharpness Tester?

Blur and Sharpness Tester 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 Blur and Sharpness Tester?

The Blur and Sharpness Tester 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

Analyse luminance edges locally and compare the score with a configurable practical threshold.

Verify before replacing the original

Keep the source, download the Blur and Sharpness Tester result as a new file, and verify dimensions, transparency, colour, metadata and visual detail before replacing any production asset.