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Reference Tables

File Magic Bytes Reference

Search frequently encountered file signatures and offsets.

ValueNameDescription
89 50 4E 47 0D 0A 1A 0APNGPortable Network Graphics.
FF D8 FFJPEGJPEG image.
47 49 46 38GIFGIF87a or GIF89a image.
52 49 46 46 … 57 45 42 50WebPRIFF container with WEBP identifier.
25 50 44 46 2DPDFPortable Document Format.
50 4B 03 04ZIP / OfficeZIP archive and ZIP-based Office formats.
1F 8BGzipGzip-compressed stream.
7F 45 4C 46ELFUnix executable and shared library.
4D 5AWindows EXEDOS MZ / Windows executable.
CA FE BA BEJava classCompiled Java class file.
00 61 73 6DWebAssemblyWebAssembly binary module.
49 44 33MP3 with ID3MP3 audio beginning with an ID3 tag.
4F 67 67 53OggOgg container stream.
66 74 79 70 (offset 4)MP4 / HEIFISO base media file family.

Source: freedesktop.org Shared MIME-info specificationReviewed: 2026-07-11

How to use File Magic Bytes Reference

  1. Enter or select the data you want to process above.
  2. Select “Search” to run the tool.
  3. Review the result, then copy it or adjust the input and run again.

File Magic Bytes Reference FAQ

Does this tool store my data?

The primary operation runs in your browser. Viptool does not upload or store the content you enter.

Why can the result differ from another website?

Results depend on the input format, calculation rules, and data update time. For live information, check the provider and timestamp shown with the result.

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