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Rhad ac am ddim Hex Viewer

Inspect the raw bytes of any file in a classic offset / hex / ASCII dump, with magic-number file-type detection. Read locally; never uploaded.

Dim cyfyngiad maint ffeilMae ffeiliau'n aros yn breifatNid oes angen mewngofnodiAm ddim am byth

Gollwng ffeiliau yma, neu cliciwch i bori

Any file dim cyfyngiad maint ffeil

Pori ffeiliau

Nid yw eich ffeiliau byth yn gadael eich dyfais. Mae'r holl brosesu yn digwydd yn lleol yn eich porwr.

Inspect the raw bytes of any file — offset, hex, and ASCII columns, like a classic hex editor. The file is read locally and never uploaded.

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Sut Mae'n Gweithio

Sometimes you need to see what's really inside a file — its header bytes, a magic number, or some embedded text. This shows a classic hex dump, all in your browser.

1
You drop in any file
The first 64 KB are read into memory locally — never uploaded.
2
The bytes are laid out
Each row shows the offset, 16 bytes in hexadecimal, and their printable ASCII representation, just like a desktop hex editor.
3
The type is detected
The leading bytes are checked against common magic-number signatures (PNG, PDF, ZIP, MP4, ELF, and more) to identify the real file type.
4
You inspect freely
Scroll through the dump to find headers, signatures, or embedded strings.