Hex Dump Viewer: Inspect Bytes in Hex and ASCII Online
Hex Dump Viewer renders file input as a classic hex-and-ASCII dump, showing an 8-digit offset, hexadecimal bytes, and a printable-ASCII gutter; non-printable bytes appear as dots. Choose 8, 16, or 32 bytes per line. For very large files, the viewer processes only the first 64 KB. Copy or download the resulting dump as text.
Hex Dump Viewer is a browser-based tool for viewing file input as a hex-and-ASCII dump. It presents an 8-digit offset, hexadecimal bytes, and a printable-ASCII gutter, making byte-level content easier to inspect without installing a local utility.
The viewer displays bytes in rows of 8, 16, or 32, according to the line-width option you choose. Printable ASCII characters appear in the gutter, while non-printable bytes are represented by dots. Very large files are capped at the first 64 KB to help keep the page responsive. When the dump is ready, you can copy it or download it as text.
Hexadecimal represents byte values with base-16 digits, while ASCII provides a readable view of printable characters. Seeing both representations together can help you examine file contents that are not fully readable as text and understand where printable characters occur in the byte sequence. The offsets show the position of each row in the input.
Hex Dump Viewer runs entirely in your browser, and input is not uploaded, stored, or sent to a server. It works offline once the page has loaded, so you can continue using it without a connection. The tool is free to use.
This hex dump viewer can help developers and DevOps engineers inspect byte-level data, review file contents, or handle a routine hex dump task from different machines. Its adjustable line width and text output make it useful for both quick checks and closer inspection.
Step 1: Paste or enter your input in the viewer. The tool renders it as a hex-and-ASCII dump.
Step 2: Choose 8, 16, or 32 bytes per line. This sets how many bytes appear in each row.
Step 3: Review the output, including the 8-digit offset, hexadecimal bytes, and ASCII gutter. Non-printable bytes appear as dots.
Step 4: Copy or download the dump as text to use it in your workflow.
Use case: Inspect file bytes during a debugging task without installing a local hex viewer.
Use case: Check byte-level data from whichever machine you are working on, using the browser-based viewer.
Use case: Examine internal data without sending it to a third-party service; processing stays in your browser.
Use case: Spot printable ASCII within a byte dump while non-printable bytes remain visible as dots.
Use case: Adjust the line width to view 8, 16, or 32 bytes per row, depending on how you want to inspect the output.
Use case: Copy or download a text dump when you need to keep or reuse the rendered view.