Method
Reads browser-visible file sizes and calculates differences, ratios, and percentage changes from a selected baseline.
Utilities / browser tool
File Size Comparison
Compare local file sizes with clear decimal or binary units.
See differences, ratios, and percentage changes without uploading files.
Your inputs stay on your device
File Size Comparison
live resultChoose 2–3 files to use their browser-visible byte sizes instead of the manual rows below. Files are never uploaded.
Files
Difference
Ratio To First
Percent Change From First
Baseline Comparisons
Display Units
Selected files and manually entered byte values stay in this browser. Size is metadata, not a quality rating or upload-limit guarantee.
Context & Reference
How it works
For comparing two or three local files or byte values.
utility guideHow to use it
Use this utility with your own values, then review the clearly labelled result and copy it when you need it elsewhere.
Understand the result
The baseline and each comparison are labelled with decimal or binary units.
Example
Compare an original 1,200,000-byte file with a 450,000-byte version.
Practical tip
Files stay in the browser; size is metadata, not a quality or compression prediction.
Notes
This utility runs locally in this browser. Files stay in the browser; size is metadata, not a quality or compression prediction.
Useful next steps
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Continue with a closely related task, calculation, conversion, or local text tool.
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