JA Technology Solutions
Retail & POS Tools
Tools for retail operations, point-of-sale systems, and grocery merchandising. Generate and decode barcodes, parse SIL files, calculate margin and markup, and work with the NRF 4-5-4 retail fiscal calendar.
Check Digit Validator
Validate and calculate check digits for UPC, EAN, credit cards (Luhn), and ABA routing numbers.
Data & FinanceBarcode Explorer
Generate, scan, and decode barcodes in 15+ formats. Camera scanning, image upload, batch detection, and CSV export.
Retail & POSMargin & Markup Calculator
Convert between margin %, markup %, cost, and selling price. Includes profit calculation and reference table.
Retail & POSRetail Fiscal Calendar (4-5-4)
Map any date to its NRF 4-5-4 retail fiscal year, quarter, period, and week number.
Retail & POSSIL File Explorer
Parse SIL (Standard Interchange Language) files into structured tables with CSV and JSON export.
Retail & POSEDI File Parser
Upload or paste any EDI file — parsed into labeled segments with export to CSV, JSON, and SIL.
Retail & POSEDI 810 Invoice Builder
Enter invoice details, paste a CSV, or import from QuickBooks — download a valid X12 EDI 810 invoice ready to submit to a trading partner.
Retail & POSEDI 850 Purchase Order Builder
Enter PO details, paste a CSV, or import from QuickBooks — download a valid X12 EDI 850 purchase order ready to send to a supplier.
Retail & POSEDI 856 Advance Ship Notice Builder
Build a valid X12 EDI 856 advance ship notice — nested HL shipment/order/item loops, carrier and BOL details, and one-click pre-fill from a prior 850.
Retail & POSEDI 855 Purchase Order Acknowledgment Builder
Paste the inbound 850 — the tool pre-fills every line as accepted, then you mark the ones that change quantity, price, or ship date, or reject the ones you can't fulfill.
Retail & POSAll tools run entirely in your browser. Your data never leaves your machine. Need help? Ask James.
Other Tool Categories
Data & Finance
Banking, accounting, healthcare, payments, and EDI file formats.
Shipping & Logistics
Freight estimation, container loading, route optimization, and trade compliance.
Inventory & Warehouse
Reorder planning, cycle counting, warehouse slotting, and cost allocation.
Networking
Subnet math, MAC vendor lookup, email authentication, and WHOIS.
Development
Format converters, encoders, hashes, regex, JWT, SQL, and more.
IBM i & Mainframe
EBCDIC, packed decimal, COBOL copybook, DDS, BMS, and fixed-width.