Hex Scope
Firmware memory explorer and editor for VS Code. Open Intel HEX and Motorola SREC files as address-aware memory, inspect binary data, decode C structs, verify integrity values, and patch bytes without leaving the editor.
Features
View
- Memory view — address-aware grid mapped from firmware segments, with gaps rendered between mapped regions
- Records view — raw record table with type labels, addresses, byte counts, and per-record checksum status; jump from a record to its address in the Memory view
Inspect
- Inspector — decode selected bytes as common scalar types in the shared per-file LE/BE byte order
- Struct Overlay — define C-style structs with arrays, nested structs, pointers, and bit fields; pin them at an address and re-decode live as selection or data changes
- Search —
Ctrl+F / Cmd+F: byte sequence, numeric value (Auto/LE/BE), ASCII string, or address; matches highlight and jump in the Memory view
Verify
- Checks — CRC-16, CRC-32, MD5, SHA-1, SHA-256, SHA-512 over any address range
- Stored values — compare computed vs. stored checksums, with mismatch and range highlighting
- Auto fix / Fix all / Profiles — stage corrections to stored values; reuse saved check setups
Edit
- Byte patching — undoable edits (type, paste, batch fill); Save rewrites records and recomputes checksums
- Quick Repair Checksums — bulk-repair broken record checksums from the Explorer context menu
- Copy & export — selection as hex string, C array, ASCII, or the raw HEX/SREC record; add segment labels for navigation
Script
TypeScript or JavaScript scripts in .hexscope/scripts/ read/write hex data (writes confirm), compute CRC/hash values, run external processes, and fetch web services (SSRF-guarded). Operations that modify data or run external commands require explicit user confirmation. See docs/SCRIPTING.md for the full guide, API reference, and examples.
Supported file types
| Format |
Extensions |
| Intel HEX |
.hex, .ihx, .ihex |
| Motorola SREC |
.srec, .mot, .s19, .s28, .s37 |
Quick usage
| Action |
How |
| Open |
Right-click a supported file → Open with HexScope Viewer |
| Views |
Toolbar: Memory or Records |
| Search |
Ctrl+F/Cmd+F — byte sequence, numeric value (Auto/LE/BE), ASCII string, or address |
| Edit |
Click Edit, click a byte and type a hex value; right-click for batch fill; Save writes changes and recomputes checksums |
| Struct Overlay |
Define C structs in the sidebar, pin them at addresses, decode live memory |
| Integrity |
Configure checks in the sidebar, compare stored CRC values, reuse saved profiles |
| Scripts |
Open the Scripts sidebar tab, pick a script from .hexscope/scripts/, run it |
Issues
Found a bug or want to request a feature? Please open an issue: Issues
Include a short description, steps to reproduce, and sample files when possible.
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