Image File Checker — Decode Test

Image File Checker — Decode Test

What this tool does

Check whether your browser can decode an image and read its pixel dimensions. No repair or malware-free claim.

How to use

Choose a supported image and process. Read the decode status, width, height and byte size; download the text report if needed.

Limitations

25 MB and 40 megapixels. JPG, PNG, WebP, GIF, AVIF and BMP extensions are accepted; actual decoding support depends on the browser. A successful decode is not a full file-integrity or malware check. Failed decoding may mean unsupported format rather than corruption. No repair, recovery or animation-frame validation.

FAQ

Are files or text uploaded?

No. Processing happens locally in your browser.

Should I review the output?

Yes. Compare it with the original using the stated limitations before use.

Does it work on mobile?

Modern browsers are supported; format support and available memory depend on your device.

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