Guides & tools / On-device tool
What’s inside your download?
Check a saved image or video without uploading it. Read its real file header, pixel dimensions, shape, size and available video duration.
Up to 100 MB (104,857,600 bytes). No upload, advertising scripts or analytics run on this page. Your file name and media are not sent to InstaSnapTik.
Choose one image or video to inspect.
Read the results
| Result | Useful for | What it cannot prove |
|---|---|---|
| Detected format | Catching an HTML error page or a photo renamed .mp4. The header is checked rather than trusting the extension. | A recognized header does not validate every byte or scan for malware. |
| Dimensions & shape | Seeing whether a file is portrait, landscape or square, and how many pixels it contains. | Large dimensions do not prove that the creator’s original detail survived compression or upscaling. |
| Duration & average file bitrate | Checking whether the browser can read the video metadata. Average bitrate uses total bytes divided by duration. | It includes audio and container overhead. It does not identify the video codec or certify smooth playback. |
If the browser cannot read the file
Keep the original and try it in your usual media player. A supported container can hold a codec your browser does not decode. A partly saved file can cause the same symptom. If your browser’s download list reports a failed transfer, finish that download before inspecting it.
This tool reads metadata; it does not repair files, transcode videos, remove watermarks or verify download completeness. Animated images are reported by their canvas dimensions, not frame count or animation duration.
See worked quality examples · Troubleshoot an unreadable file