Hex Viewer: File Bytes, Offsets and Integer Inspection
Inspect local binary files, Hex or standard Base64 in a paged byte view. Search exact bytes, compare endianness and export a selected range without uploading data.
Enabling local controls…
1. Local byte source
Bytes, queries and filenames stay in browser memory. No upload, saved input or URL contents. Clipboard copies and local downloads are your choice.
Inspect manually. Source edits invalidate all results. Local files: up to 64 MiB. File reads use page slices; each page has 256 bytes. The 9-byte sample is synthetic. Empty files have no cursor. Hex accepts complete byte pairs and ASCII whitespace. Base64 uses the standard alphabet and canonical padding.
2. Bytes and exact ranges
Choose a source or load the sample, then inspect bytes.
How to use this tool
Choose the input format and inspect. Jump to a zero-based offset, read integers at the cursor, search Hex or UTF-8 text and select a start plus length for exact export.
When not to use it
Read-only, not a hex editor or file safety checker. Printable ASCII is not UTF-8 decoding. File signatures and integer interpretations do not prove a format, source or meaning.
Read the guide →