Professional Generator APIs
for Modern Developers

Enterprise-grade Web API platform with comprehensive documentation.
Production-ready, scalable, and completely free to use.

7
Production APIs
99.9%
Uptime SLA
Free
Forever

Enterprise Features

Instant Access
No registration or API keys required. Start using immediately with simple HTTP requests.
Multi-Language
Full support for Thai and English languages with comprehensive documentation in both.
Privacy First
We don't store your data. Only metadata is collected for analytics and system improvement.
High Performance
Optimized infrastructure ensures fast response times and reliable service delivery.
Complete Documentation
Detailed API documentation with examples in multiple programming languages.
Enterprise Security
Protected against SQL injection, XSS attacks, with built-in rate limiting.

Available APIs

QR Code Generator
Generate QR codes in multiple formats (PNG, JPG, Transparent). Customizable size from 50-1000px with high-quality output.
GET /api/qr
Image Output Customizable
Barcode Generator
Create barcodes in 6 different formats: Code128, EAN-13, EAN-8, UPC-A, UPC-E, and Code39. Supports PNG and SVG output.
GET /api/barcode
6 Formats PNG/SVG
Slug Generator
Convert text to URL-friendly slugs with automatic Thai romanization. Perfect for SEO-optimized URLs and permalinks.
GET /api/slug
Thai Support SEO Ready
Hash Generator
Generate cryptographic hashes using 20+ algorithms including MD5, SHA-1, SHA-256, SHA-512, and more.
GET /api/hash
20+ Algorithms Secure
JSON Formatter
Validate, format, and minify JSON data with detailed error reporting. Includes size comparison and beautification.
POST /api/json
Validate Format Minify
UTM Builder
Build UTM parameters for campaign tracking. Essential for marketing analytics and Google Analytics integration.
GET /api/utm
Marketing Analytics
Thai Baht Text
Convert numbers to Thai Baht text format. Perfect for invoices, receipts, and financial documents.
GET /api/thai/baht-text
Thai Only Finance

Quick Start Guide

JavaScript (Fetch API)
// QR Code Generator API
fetch('https://api.dee4u.com/api/qr?data=Hello&size=300')
  .then(response => response.blob())
  .then(blob => {
    const img = document.createElement('img');
    img.src = URL.createObjectURL(blob);
    document.body.appendChild(img);
  });

// Slug Generator API
fetch('https://api.dee4u.com/api/slug?text=สวัสดี โลก')
  .then(response => response.json())
  .then(data => console.log(data.data.slug));
  // Output: "sawasdee-lok"

// Thai Baht Text API
fetch('https://api.dee4u.com/api/thai/baht-text?amount=1234.50')
  .then(response => response.json())
  .then(data => console.log(data.data.text));
  // Output: "หนึ่งพันสองร้อยสามสิบสี่บาทห้าสิบสตางค์"