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.

即時偵測圖片格式、尺寸、色彩深度與檔案大小。

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