Hex Dump Viewer

UTF-8-encodes the entered text with TextEncoder and emits one line per byte with an eight-digit lowercase hexadecimal offset and two-digit byte value. It does not accept a binary file or show a 16-byte ASCII grid.

Hex Dump Viewer · Client runtimeSandboxed
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About this hex dump viewer

UTF-8-encodes the entered text with TextEncoder and emits one line per byte with an eight-digit lowercase hexadecimal offset and two-digit byte value. It does not accept a binary file or show a 16-byte ASCII grid Transforms and validates developer data structures locally, preventing confidential payload exposure during data wrangling.

Syntax parsing & data transformation logic

TextEncoder converts entered text to UTF-8 bytes. Each byte gets its own line with a lowercase hexadecimal offset padded to at least eight digits and a two-digit byte value; there is no binary-file reader or ASCII grid.

Worked conversion & output example

Scenario: Dump UTF-8 bytes for a non-ASCII string.

Sample input:

Aé

Processing: TextEncoder encodes each UTF-8 byte with a hexadecimal offset.

Illustrative output:

00000000 41 00000001 c3 00000002 a9

Syntax constraints & input size limits

This is a one-byte-per-line UTF-8 text dump, not a grouped hex/ASCII file viewer. It does not open binary files or show an ASCII side column; offsets count bytes. TextEncoder replaces an unpaired surrogate with UTF-8 EF BF BD.

Data conversions and formatting in Hex Dump Viewer reflect standard structured syntax. Verify parsed outputs against your target runtime before deployment.

Local client execution boundary

Data parsing and transformations in Hex Dump Viewer execute in the local browser tab without remote data transmission.

Data format specifications & language standards

Data interchange formats and language grammar specifications:

Hex Dump Viewer verification · Audit standards

How to use it

  1. Enter text in the input field.
  2. Encode the text as UTF-8 and print each byte on its own line with an eight-digit hexadecimal byte offset.
  3. Read offset and two-digit hexadecimal byte pairs.

Frequently asked questions

How does Hex Dump Viewer turn text into rows?+

TextEncoder converts the JavaScript string to UTF-8. Each byte gets an offset padded to at least eight lowercase hexadecimal digits, two spaces, and a two-digit lowercase hexadecimal value.

How is a non-ASCII character represented?+

For `Aé`, the UTF-8 bytes are `41`, `c3`, and `a9` at offsets 0, 1, and 2. The accented character occupies two bytes, so this is a byte dump rather than a Unicode-code-point listing.

Which dump features are absent?+

There are no width controls, ASCII side column, binary file reader, address base option, byte grouping, or reverse parser. It only dumps entered text encoded as UTF-8.

Does Hex Dump Viewer read files or upload entered text?+

The tool handler calls TextEncoder and renders the result locally; it has no file picker or upload call. This source review does not verify every page resource, browser extension, or network request.