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View, edit, and analyze binary files directly in your browser. Features include data inspection, search & replace, file comparison, checksums, and multiple export formats. All processing happens locally—your files never leave your device.
No file loaded. Open a file, paste hex/text, or create a new file to get started.
No bookmarks yet. Select a byte and press Ctrl+B to add one.
Load a file to compare
Load a file to compare
Open a binary file using the Open button, paste hex values directly, or create a new file. The editor displays bytes in hexadecimal with ASCII representation.
Click any byte to select it, then type hex digits (0-9, A-F) to modify. Use Insert/Delete/Fill for structural changes. All edits can be undone.
Select bytes to see their interpretation as various data types (integers, floats) in both little-endian and big-endian formats.
Use Compare to load two files side by side. Differences are highlighted in yellow, bytes only in one file are shown in green (additions) or red (deletions).
This free hex editor runs entirely in your browser. Your files are never uploaded to any server—all processing happens locally on your device.
Features: Dual-pane hex/ASCII view, data inspector, search & replace, file comparison, checksums (CRC32, MD5, SHA family), byte statistics with histogram, bookmarks, undo/redo, and multiple export formats.
Limits: Maximum file size is 20MB for optimal performance.