NEOKYRU
NEOKYRU Free Online Tools
Files & Archives
100% Client-Side All file header inspection runs in local memory with zero data transfer.

File Metadata & Header Inspector

Inspect file properties, exact byte sizes, timestamps, SHA-256 hashes, and 256-byte hex dump

Zero-Knowledge Local Inspection: Files are read directly from local memory without network requests.
Select any file to inspect metadata & binary headerExtracts filename, exact bytes, timestamps, SHA-256 fingerprint, and hex preview

About File Metadata & Header Inspector

Perform in-depth file inspection inside your browser. View exact byte lengths, last modified timestamps, detected MIME types, digital signatures, and an interactive 256-byte hexadecimal and ASCII header dump.

Key Capabilities & Features

  • Detailed metadata overview: filename, bytes, timestamps, MIME
  • Calculates SHA-256 digital fingerprint
  • Interactive 256-byte hexadecimal and ASCII header dump table
  • 100% private in-browser inspection

How to Use File Metadata & Header Inspector

1

Select File

Choose any document, image, or binary file.

2

Inspect Properties

Review file size, modification dates, and MIME classifications.

3

Analyze Hex Dump

Inspect the raw 256-byte hexadecimal header and ASCII translation.

Privacy & In-Browser Execution Guarantee

All file header inspection runs in local memory with zero data transfer.

Frequently Asked Questions

What is a hex dump?

A hex dump displays the raw binary bytes of a file in hexadecimal notation alongside their ASCII printable character representations.

Related Tools in this Suite

File Metadata Cleaner & Sanitizer
Strip metadata tags, XML comments, design editor attributes, and sanitize files before sharing
Magic Byte File Type Checker
Inspect binary magic bytes to detect true file formats and uncover spoofed file extensions
File Hash & Checksum Calculator
Calculate SHA-256, SHA-512, SHA-1, and MD5 file digests and verify against expected release checksums