🔧 T2H Tools
Terminal to Host - Payment Processing & EMV Tools
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ISO 8583 Message Converter
Comprehensive conversion tools for ISO 8583 message processing and analysis.
ASCII ↔ HEX conversion
BCD ↔ HEX conversion
Binary ↔ HEX conversion
Bitmap parser & creator
Complete message parser
EMV Field 55 (DE55) parser
Amount formatter
LRC calculator
Popular
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ARQC Cryptogram Calculator
Authorization Request Cryptogram Generator for EMV chip card transactions.
Multi-scheme support (Visa, Mastercard, UnionPay, JCB)
Session key derivation
CDOL1 data builder
3DES-MAC calculation
Step-by-step calculation view
Example transactions
Advanced
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EMV Tag Dictionary
Complete reference for EMV tags with interpretations and specifications.
Comprehensive tag database (70+ tags)
Tag interpretation & examples
EMV Keys & Cryptography guide
L3 Certification information
Search functionality
Category organization
New
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Transaction Builder
Build complete ISO 8583 transactions from scratch with field templates.
Field-by-field builder
Scheme templates
Auto-validation
Export/Import
Coming Soon
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Key Management Tools
Cryptographic key generation, derivation, and management utilities.
DUKPT key derivation
TR-31 key block format
Key generation (DES, 3DES, AES)
Key Check Value (KCV)
KSN parsing
Standards reference
New
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Test Data Generator
Generate realistic test data for payment testing and development.
Test card numbers
Transaction scenarios
Batch generation
Multiple schemes
Coming Soon