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Binary file/hex inspector

Browse local byte ranges, search hexadecimal sequences and decode numeric values with explicit byte order.

Read-only inspection, maximum 50 MiB. Display/export up to 4,096 bytes at a time. Numeric values start at the loaded offset.

Binary fileDecimal byte offsetBytes to readFind hex bytes

What it does

Browse local byte ranges, search hexadecimal sequences and decode numeric values with explicit byte order.

Select a file, enter a decimal offset and range length, then read bytes.
Choose endianness to interpret numbers or search a hex sequence. Download only the loaded range.
Processing stays in your browser. No upload or sign-up.

Open a ZIP file and search for 50 4b to find its PK byte signatures.

Blob slicing reads bounded ranges; a worker searches byte sequences and DataView decodes numbers at the selected range start.

Non-empty files up to 50 MiB; 4,096-byte range display/export; 1–64-byte search and first 1,000 matches. Read-only; no execution or editing.

This tool runs in your browser. No upload API or MCP endpoint is available.

Reference updated 2026-09-18

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