🚀 B2B Micro-SaaS Engine

High Performance JSON-to-Excel & CSV Export API

Transform raw JSON arrays into beautifully formatted, themed multi-tab .xlsx workbooks and CSV files in milliseconds. Built for SaaS apps, analytics dashboards, and enterprise tools.

⚡ Interactive API Playground

Test JSON conversion in real-time. Custom column formatting, header themes, and titles are automatically applied.

JSON Data (Array of Objects)

Workbook Title Banner (Optional)

Sheet Name

Header & Table Color Theme

Export File Name

Engineered for SaaS & Enterprise Apps

🎨

Themed Header Styling

Automatic header backgrounds, border styling, fonts, and alternating zebra rows for instant board-ready spreadsheets.

📑

Multi-Tab Workbooks

Export multi-tab Excel files in a single POST request with separate sheet names and column rules per tab.

💲

Smart Type Auto-Formatting

Recognizes currency, dates, numbers, and booleans, applying cell number formats automatically.

⚡

Ultra-Fast Buffer Response

Streaming binary responses enable instant browser downloads or server-side attachment generation.

💻 Developer API Integration

Integrate ExcelPulse into your Node.js, Python, or curl workflows with simple REST calls.

// POST /api/v1/export/excel
const response = await fetch('https://excel.quaslabsllc.com/api/v1/export/excel', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'x-api-key': 'ex_live_your_api_key_here'
  },
  body: JSON.stringify({
    title: 'Monthly Revenue Summary',
    sheetName: 'Transactions',
    theme: 'emerald',
    columns: [
      { key: 'id', header: 'Invoice ID' },
      { key: 'customer', header: 'Client Name' },
      { key: 'amount', header: 'Amount ($)', type: 'currency' },
      { key: 'date', header: 'Issue Date', type: 'date' }
    ],
    data: [
      { id: "INV-101", customer: "Acme Corp", amount: 4250, date: "2026-08-01" }
    ]
  })
});

const blob = await response.blob();

PRO PLAN

ExcelPulse API Pro

For SaaS developers & data teams

$19.99 / month

Unlimited Excel (.xlsx) & CSV Exports
Multi-Tab Workbook Support
Custom Column Formatting & Themes
High Rate Limits (60+ req / min)
99.9% Uptime Guarantee
Dedicated Support & API Key Generation