Simple API for creating SVG QR codes with an optional error correction level.

Generate pixel-perfect PDFs from HTML, URLs, and templates in one API call. Invoices, receipts, reports, contracts — done in milliseconds, not hours.

Generate realistic, schema-aware synthetic test data for any database schema. 50+ field types, AI prompt-to-schema, pre-built templates, JSON/SQL/CSV output.

Professional QR Code Generation API with advanced customization options.

The 3D Bin Packing problem is a classic combinatorial optimization problem that has wide applications in logistics, warehousing, transportation, and many other fields. Its core is to reasonably pack a series of three-dimensional items (boxes) of various sizes into a limited number of three-dimensional containers (boxes, cargo containers, etc.), with the typical goal of minimizing the number of containers used or maximizing the utilization rate of containers while satisfying various constraints.

It offers goal scorers, assists, and rankings for various European leagues, providing up-to-date, consistent data that is ready to be integrated into any sports application.

Convert numbers to perfectly formatted text across 28 languages and over 35 predefined currencies. Our API handles standard, formal, and check writing formats with support for custom currencies. Perfect for financial documents, legal contracts, invoices, and multilingual applications. Simple integration with comprehensive documentation.

A Compact URL Generator API condenses long web addresses, enhancing accessibility and engagement through dynamic link generation, analytics, and security features.

The Exchange Value API facilitates seamless real-time exchange rate calculations, ensuring accuracy and versatility for applications requiring swift and precise currency conversions.

Live Currency Rates API provides real-time exchange rates, providing users with financial information.

The Color Convertor API is a powerful tool for anyone working with colors. With endpoints for converting between different color representations, such as RGB, HSL, and CMYK, this API makes it easy to work with colors across different platforms and devices.

The HTML to JSON API is a tool that converts HTML code to JSON format. This can be useful for developers who want to extract data from HTML documents and use it in JSON-based applications. The API takes an HTML document as input and returns a JSON object that contains the same information in a structured format.

NumXlator is a very fluent API for translating numbers into words in various languages, including: عربي (Arabic), Czech, Danish, Deutsch (German), English, Español (Spanish), Finnish, Français (French), Hausa, Hungarian, Igbo, Indonesian, Italiano (Italian), Malayu (Malaysian), Nederlands (Dutch), Norwegian, Polish, Português, Русский (Russian), Romanian, o'zbek (Uzbek), Swahili, Swedish, Thai, Turkish, Tiếng Việt (Vietnamese), Yoruba, 中国人 (Chinese), 日本語 (Japanese), and 한국인 (Korean)

Enhance your data generation with MockHero's Schema Aware Data Generation API, ensuring data integrity and relevance.

This endpoint takes the information (string) as input, and provides the JWT-encoded result (string) as output. The output also includes a copy of the input, and a « status » value. Status is « Ok » or « Error: … ».

Fast & reliable online code compilation and execution of APIs for 50+ languages & databases

Text Case Converter API is a tool that developers can use to convert text to uppercase and lowercase automatically.

It is a powerful tool for correcting the capitalization that text should have quickly and easily. With this API, you can easily format text to meet various style guidelines,

Enhance your scheduling with the Smart API, designed to simplify date and business day calculations with intelligence.

This API retrieves real-time data between two entities, providing accurate, scalable, and easily integrated JSON responses for dynamic applications.

The Futoshiki generator API is that allows users to programmatically generate Futoshiki puzzles.

Universal JSON Fix repairs broken or malformed JSON, especially from LLMs like ChatGPT, Claude, Deepseek, Gemini, or Llama. This API ensures reliable parsing by fixing mixed quotes, missing commas, and formatting issues, making it ideal for AI applications.

Validate structured data markup on any web page including JSON-LD, Microdata, and RDFa. Detects Schema.org types, checks for errors, and returns detailed validation results.

Parse, validate, describe, and generate cron expressions. Converts cron syntax to human-readable descriptions and calculates next run times.

This API converts local phone numbers to international format, returning the number and destination in a standardized format for global compatibility.

Powerful and reliable API service that provides real-time domain registration data for businesses, cybersecurity professionals, and developers. Our API delivers accurate and up-to-date WHOIS information in a simple, easy-to-parse JSON format, allowing you to monitor domain ownership, prevent fraud, and enhance your applications with valuable insights.

Stay updated with player movements and transactions using the Transfer Market Football Data Fetch API for real-time insights.

Easily access comprehensive data on football competitions worldwide with our Transfer Market Football Competitions Data API.

Render diagrams from text-based notation including Mermaid, PlantUML, and DOT syntax. Returns high-quality PNG or SVG images of flowcharts, sequence diagrams, class diagrams, and more.

Textify Money API provides a simplified method for converting numeric representations into text values, allowing developers and researchers to extract valuable information from financial data.

With Domain WHOIS Extractor API get WHOIS information for multiple domains or IP addresses, with support for all TLDs and JSON, raw and line formats. Ideal for bulk analysis.

Simplify web pages into markdown format quickly with the Web Pages to Markdown API.

Historical Metal Market API provides instant and past pricing for precious and industrial metals. Supports integration with apps, tools, and financial software.

Turn web pages into actionable content by extracting text or converting to markdown for easy integration and processing.

Unlock the hidden treasures within the unstructured text with our Text Entities Extractor API. Harness the power of AI to effortlessly extract user-defined entities, from specific values like prices and dates to semantic answers like main topics or customer requests. With endless possibilities, your imagination is the only limit. Get ready to dive into a world of precise information retrieval with our powerful and customizable text parser.

Get accurate live and historical rates for gold, silver, copper, and others. A powerful API built for traders, analysts, and finance professionals.

Global Metals Rates API delivers up-to-date and past metal prices like gold, silver, and copper—ideal for financial apps, dashboards, and market analysis.

Convert and validate phone numbers worldwide, returning standardized formats, country codes, state data, and timezone information for smarter communication applications.

Extract precise zip codes from Japan for seamless address validation and lookup.

Extract essential programming languages information quickly for enhanced development insights.

Streamline your development with reliable programming languages data retrieval through our API.

Quickly retrieve detailed information about programming languages to empower your projects.

Code Compiler API is a powerful tool for developers that can compile code in over 75 different programming languages.

Unlock a world of celebration with the Holidays API! Dive into a treasure trove of festive data spanning 230+ countries. Delve into past revelries or plan ahead with future calendars. From public jubilations to religious observances and bank holidays, this API ensures your application is always in sync with global festivities.

JSON Translate API converts text in JSON files to multiple languages, facilitating localization and automatic translation of data for web and mobile applications.

The Juventus Data API provides comprehensive data on Juventus Football Club, including fixtures, competitions, and team statistics.

Access metal prices anytime with this API—real-time and historical data for gold, silver, copper, and more. Simple setup, detailed responses.

Instantly validate how any URL will appear when shared on Facebook, LinkedIn, Twitter, and WhatsApp. Returns a full JSON report with platform-specific scores, broken tag detection, image dimension checks, and plain-English fix instructions — all in a single API call.