Yes, completely free with no usage limits.

Does my photo get uploaded anywhere?

No. Format analysis reads file headers and renders images locally in your browser — nothing is uploaded.

Does it work on mobile?

Yes. Works in any modern mobile or desktop browser.

画像の形式・寸法・色深度・ファイルサイズを即座に検出。

100% in your browser. Your file never leaves your device.

Image file

Drop an image to analyze its format.

1. Drop an image file onto the upload zone.
2. Click "Analyze image" to detect format and read dimensions.
3. View the results: format, width, height, aspect ratio, file size, and MIME type.

Is this tool free?: Yes, completely free with no usage limits.
Does my photo get uploaded anywhere?: No. Format analysis reads file headers and renders images locally in your browser — nothing is uploaded.
Does it work on mobile?: Yes. Works in any modern mobile or desktop browser.

Last updated: 2026-05-20 By jarvisbox