File Metadata Viewer
Inspect file details directly in your browser. View filename, extension, size, MIME type, last modified date, and raw signature bytes without uploading your file anywhere.
Upload a file to inspect
Select a local file to view its metadata and leading signature bytes directly in your browser.
Drag and drop your file here
or
Supports documents, images, media, archives, installers, and other local files.
Metadata summary
Basic file details and browser-detected information.
No metadata to show yet. Upload a file to inspect it.
File signature bytes
The first bytes of a file often help identify its true format.
Upload a file to view its leading signature bytes and ASCII preview.
What is file metadata?
File metadata is the descriptive information associated with a file. It may include the filename, extension, file size, MIME type, modification time, and in some cases file signature bytes that help identify the real format of the file.
What can this tool show?
This file metadata viewer reads basic browser-accessible file information from your selected local file. It can also inspect the first bytes of the file to display the binary signature in hexadecimal format.
This is useful when checking downloaded files, identifying file types, confirming file extensions, or inspecting suspicious files before using them further.
Private and browser-based
The tool runs fully in your browser. Your file is not uploaded to a server, which makes it useful for quick private inspection of documents, images, archives, media files, and other local files.
Common use cases
- • Inspect file extension and browser MIME type
- • Check file size in bytes, KB, MB, or GB
- • View the file’s last modified timestamp
- • Examine leading signature bytes in hex format
- • Confirm whether a file looks like the format it claims
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