The Ultimate Development Toolkit for Serious Professionals
Complete professional toolkit with all features including Logic Finder, external modules, and advanced development tools. Create custom codecs, find mileage patterns, discover PIN codes, and build standalone applications.
⚠️ Designed for professional development use. If you need a complete ready-to-use solution, HexTool Full is recommended.
The flagship tool for ECU development work - Developer Exclusive
Locate mileage data patterns in ECU dumps using advanced pattern recognition algorithms.
Mercedes-style scattered nibble scan with bipartite matching. Dual tables, light theme, Cross-Pane Match for comparing highlights.
Build custom encoding/decoding routines for new vehicle modules.
Verify and fix checksums in logic blocks automatically.
Generate standalone tools from templates for distribution or client use.
Side-by-side checksum comparison for detailed analysis.
Additional tools bundled with Developer license
The core Logic Finder engine for pattern recognition and analysis.
Embedded calibration tool with full codec support and decode/encode capabilities.
Mileage module pop-out for dedicated odometer calibration work.
Advanced checksum finder with CRC16:POLY:INIT:XOROUT brute force, XOR-16 LE/BE, skeleton copy logic.
Plus all the developer-exclusive features
Full hex editing capabilities with synced scrolling and live diff highlighting.
CAS3/CAS4, FRM Recovery, CAS Flash, Instrument Cluster tools.
Jaguar BCM Recovery, Mercedes SSID, W906 Immo Tool, and more.
Generate bar codes for Mini/Rovers/Land Rovers remote key code calculator.
Display or reset mileage on known ECUs with buffer mode support.
CRC Live Update, checksum scanner, algorithm selector, write to file.
Complete mileage and VIN editing dialogs for professional work.
14 color themes + custom, font scaling, button visibility, settings persistence.
Screenshots and video tutorials
HexTool Ultimate is for advanced users who need full control
Create custom tools, build standalone applications, and extend functionality.
Analyze ECU dumps, discover data patterns, and reverse engineer codecs.
Full access to all tools for comprehensive training programs.
Power users who need Logic Finder and codec creation capabilities.
Additional advantages included with Developer license
Direct email support with faster response times for Developer license holders.
Access to external modules for customization and integration.
Get new features and updates before general release.
Request custom features and codec development for your specific needs.
60+ checksum algorithms for comprehensive ECU data verification
Byte Sum: ByteSum8, ByteSum8_2sComp, ByteSum8_1sComp, ByteSum8_XOR
CRC-8 Variants: CRC-8/DVB-S2, CRC-8/Maxim, CRC-8/CCITT, CRC-8/WCDMA, CRC-8/CDMA2000, CRC-8/SAE-J1850, CRC-8/ITU, CRC-8/ROHC, CRC-8/EBU, CRC-8/I-CODE, CRC-8/DARC, CRC-8/SMBUS
Multiplier Sums: MulSum8_01-07
Word Sums: WordSum_LE, WordSum_BE, WordSum_LE_2sComp, WordSum_BE_2sComp
CRC-16 Variants: CRC-16/CCITT-FALSE, CRC-16/ARC, CRC-16/Modbus, CRC-16/XMODEM, CRC-16/IBM-3740, CRC-16/USB, CRC-16/DNP, CRC16/MAXIM, CRC-16/X.25, CRC-16/KERMIT, CRC-16/BUYPASS, CRC-16/CMS, CRC-16/DDS-110, CRC-16/DECT-R/X, CRC-16/EN-13757, CRC-16/GENIBUS, CRC-16/MCRF4XX, CRC-16/RIELLO, CRC-16/T10-DIF, CRC-16/TELEDISK, CRC-16/TMS37157
Fletcher: Fletcher-16
CRC-24: CRC-24/OpenPGP, CRC-24/FlexRay-A, CRC-24/FlexRay-B, CRC-24/LTE-A, CRC-24/LTE-B, CRC-24/BLE
CRC-32 Variants: CRC-32/ISO-HDLC, CRC-32/BZIP2, CRC-32C, CRC-32D, CRC-32Q, CRC-32/JAMCRC, CRC-32/MPEG-2, CRC-32/POSIX, CRC-32/XFER
Sum Types: DWordSum_LE, DWordSum_BE, DWordSum_LE_2sComp, DWordSum_BE_2sComp
Get HexTool Ultimate and unlock the full potential of hex editing and algorithm development.
Purchase for £1,199