# LabelQueue Complete Technical Specification & Tool Documentation

## Executive Summary
LabelQueue is a browser-based, privacy-first software suite designed for e-commerce sellers, logistics managers, retail operators, and office administrators. It provides millimeter-precise Avery printable sheet generation, industrial barcode rendering, and thermal printer optimization without requiring server uploads or third-party cloud database access.

## Complete Tool Index & Routing Map

### 1. Avery Sheet Compatible Templates
- `/template/avery-5160`: 1" x 2-5/8" address labels (30 labels per sheet)
- `/template/avery-5163`: 2" x 4" shipping labels (10 labels per sheet)
- `/template/avery-5164`: 3-1/3" x 4" shipping labels (6 labels per sheet)
- `/template/avery-5167`: 1/2" x 1-3/4" return address labels (80 labels per sheet)
- `/template/avery-8160`: Inkjet address labels (30 labels per sheet)
- `/template/avery-22806`: 2" round print-to-the-edge stickers (12 labels per sheet)
- `/template/4x6-shipping-label`: Standard 4x6 thermal shipping label template

### 2. Barcode Generators
- `/generator/code-128`: Code 128 Alphanumeric Barcode Generator (Auto-subset A/B/C selection)
- `/generator/upc-code`: UPC-A 12-digit Retail Barcode Generator (Modulo-10 checksum validation)
- `/generator/ean-13`: EAN-13 International Article Number Barcode Generator
- `/generator/data-matrix`: 2D Data Matrix Barcode Generator for GS1 logistics and hardware tagging
- `/generator/itf-14`: Interleaved 2 of 5 Barcode Generator for shipping cartons

### 3. Hardware Thermal Studios & Fixers
- `/printer/zebra-label-maker`: Zebra ZPL/EPL thermal printer formatting and setup guide
- `/printer/rollo-label-designer`: Rollo 4x6 thermal label alignment tool
- `/printer/munbyn-label-software`: Munbyn sticker software and resolution configuration
- `/printer/mac-thermal-printer`: macOS AirPrint margin clipping repair utility
- `/tools/zpl-viewer`: Raw ZPL code renderer and PDF exporter

### 4. Enterprise Mail Merge
- `/excel-to-labels`: Import XLSX / CSV spreadsheets and auto-populate label grids client-side

## Privacy & Security Architecture
All file parsing, barcode vector rendering, and PDF compilation are executed directly within the client's Web Browser process via WebAssembly / JavaScript (`pdf-lib`, `bwip-js`, `xlsx`). No user data is sent over network channels.

## Official Support SLA
For technical API inquiries, partnership, or custom template requests, contact:
Email: admin@labelqueue.com (Guaranteed 24-hour response SLA)