Online Hex Viewer & Binary Inspector
Open, inspect, and analyze any file in raw byte-by-byte hexadecimal (Base16) and ASCII format. Byte offset markers, magic number inspection, firmware debugging, and zero server uploads.
sample-binary.png128 Bytes
Hexadecimal (Base16) + ASCII| Offset | 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F | Decoded ASCII |
|---|---|---|
| 00000000 | 89 50 4E 47 0D 0A 1A 0A 00 00 00 0D 49 48 44 52 | .PNG........IHDR |
| 00000010 | 00 00 03 E8 00 00 03 E8 08 06 00 00 00 1F 3C 68 | ..............<h |
| 00000020 | 00 00 00 01 73 52 47 42 00 AE CE 1C E9 00 00 00 | ....sRGB........ |
| 00000030 | 04 67 41 4D 41 00 00 B1 8F 0B FC 61 05 00 00 00 | .gAMA......a.... |
| 00000040 | 09 70 48 59 73 00 00 0E C3 00 00 0E C3 01 C7 6F | .pHYs..........o |
| 00000050 | A8 64 00 00 20 00 49 44 41 54 78 5E ED DD 77 5C | .d.. .IDATx^..w\ |
| 00000060 | 55 D5 1F 07 F0 77 3E CF 3D 73 BE 3B F7 9E C7 89 | U....w>.=s.;.... |
| 00000070 | 6D B2 64 DB 26 49 26 B6 49 B6 49 B6 49 B6 49 B6 | m.d.&I&.I.I.I.I. |
The Complete Guide to Hexadecimal (Hex) Dumps & Binary File Analysis
At the hardware layer, every computer file is simply a sequence of 8-bit binary bytes (values from 00000000 to 11111111, or decimal 0 to 255). Because binary is cumbersome for humans to read, computer scientists express bytes in Hexadecimal (Base16) notation using sixteen symbols (0–9 and A–F), where each pair of hex characters represents precisely one byte.
The HiFi Toolkit Online Hex Viewer arranges binary streams into standard 16-byte rows displaying the memory offset, the hexadecimal byte grid, and the decoded ASCII character representation side-by-side.
Common File Magic Byte Signatures
PNG Image:
89 50 4E 47 0D 0A 1A 0A (.PNG)PDF Document:
25 50 44 46 (%PDF)ZIP / DOCX / APK:
50 4B 03 04 (PK..)JPEG Image:
FF D8 FF E0 / FF D8 FF E1How to Inspect Files in Hex Online
- Upload File: Click Open Binary File or drag and drop any file.
- Inspect Hex Grid: Review the 16-byte hex dump and decoded ASCII sidebar.
- Audit Magic Numbers: Verify header signatures at offset
00000000.
Frequently Asked Questions (FAQs)
An online Hex Viewer is a low-level binary analysis tool that parses any file into a byte-by-byte hexadecimal (Base16) dump alongside its printable ASCII representation. It allows reverse engineers, firmware developers, and digital forensics specialists to inspect file magic numbers, binary headers, and embedded text strings.
Magic numbers are fixed byte sequences at the very beginning of a file that identify its true file type (e.g. 89 50 4E 47 for PNG, 25 50 44 46 for PDF, FF D8 FF for JPEG, 50 4B 03 04 for ZIP/DOCX).
Yes, 100% private. File byte buffers are read in-memory in your local browser sandbox without uploading any files to remote servers.
