Hex Viewer
Inspect any file byte-by-byte with offset, hex, and ASCII — fully in-browser.
How to Use
- Drop or pick a file.
- Use the offset / count controls to page through large files.
File
⬡
Drop or
Any file.
bytes
bytes
Hex
Pick a file.
Common magic bytes
PNG
89 50 4E 47 0D 0A 1A 0A
JPEG
FF D8 FF
ZIP / DOCX / JAR
50 4B 03 04 (PK)
PDF
25 50 44 46 (%PDF)
GIF
47 49 46 38 (GIF8)
ELF
7F 45 4C 46
Frequently Asked Questions
File size limit?
Window reads only the requested range, so gigabyte files are fine.
Can I edit?
Read-only view for safety. For edits, download, modify, re-upload.
Common Use Cases
Signature check
Look up magic bytes (e.g. PK → ZIP, 89 50 4E 47 → PNG).
Forensics
Inspect unknown files.
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