One image
Source images
JPEG, PNG, WebP
Static images. Up to 4 MiB per file, 12 MiB total and 4 million pixels per image. One source image.
Image Information Inspector
Read decoded dimensions, file size, format and alpha presence.
Open this toolAn image's extension alone does not explain its decoded dimensions or format.
Inspect the source before deciding whether it needs resizing, conversion or compression.
Inputs and controls
How to use
- Choose a static JPEG, PNG or WebP source. Check the displayed upload limits before processing.
- Select Prepare image. Inspect the resulting preview, dimensions and file size, then download the output you need.
Why use this tool
The reported properties give an explicit basis for checking upload requirements.
Before relying on the result
Compare the finished picture with its source. Read the reported sampling basis. It should not be treated as proof of every pixel's transparency state.
Questions
Is alpha information a full scan of every visible pixel?
Read the reported sampling basis. It should not be treated as proof of every pixel's transparency state.
Do I need to review the output?
The reported properties give an explicit basis for checking upload requirements. Inspect the source before deciding whether it needs resizing, conversion or compression.
Source page last modified: 2026-10-04T18:22:35+00:00. This profile describes the tool; use its page to run it.
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