URL UnShortener API is a service that allows users to expand shortened URLs back to their original form, created by URL shortening services. This helps users to access the original URL, ensuring security and avoiding phishing sites. It's easy to use and it's available for anyone who needs to unshorten a URL.

Aperiodic Monotile Generator API — generate gap-free Spectre/Hat/Turtle/Tile(1,1) tilings clipped to a custom boundary (circle, rectangle, square, triangle, hexagon). Async jobs export SVG,

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.

The User Agents API is a comprehensive solution for generating realistic and diverse user agents for your website or application. With advanced algorithms, it creates user agents that mimic real browsers and devices, ensuring that your requests are not detected as suspicious or blocked.

Get random RGB color palletes for your projects. Also, receive suggested colors that could match your current colors. Get coherent colors for your apps and websites.

Libera.Date.Api is a high-precision date calculation engine designed to streamline business logic for global applications. Its core strength lies in its advanced Working Days System, which accurately calculates business days by automatically excluding weekends and public holidays for multiple countries (including 100 countries). Beyond simple duration checks, the API offers intelligent scheduling tools like finding the nearest available working day, analyzing date ranges for non-working intervals, and distinguishing between standard weekends and legal holidays. Whether you are computing SLAs, planning delivery windows, or building HR rosters, Libera.Date.Api ensures your dates align with real-world business calendars.

Forget about long URLs with this API. Just pass the link that you want to cut. Simple as that!

Convert all types of measurement units to the ones that work better for you simply with this API.

Generate random User Agents with this API for your projects. Be able to scrape or access any website as the User Agent of your choice.

The Domain Name Checker API quickly verifies domain name availability, simplifying online presence management and ensuring secure acquisition of desired virtual addresses.

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.

The User Agent Builder API allows developers to create and customize user agent strings for web scraping, testing, and automation. Generate realistic and varied user agent strings to mimic different browsers and devices, ensuring better performance and evasion of anti-bot measures.

The User Agent Analyzer API parses user agent strings to accurately identify details about the device, browser, and operating system.

Effortlessly convert multiple users’ working hours across time zones into synchronized UTC availability while retrieving precise local times for each participant.

Create Unique Universal Identifiers with this API with ease. This API will provide UUID v4 generated using a secure random number generator.

Accurate business-day, holiday, and scheduling math for major countries and their subdivisions — without maintaining a single holiday calendar yourself. Add or subtract working days, check if a date is a business day, find the next valid date, or count working days between two dates, with full support for regional subdivisions, custom weekends, and your own blackout dates. One simple GET call, instant JSON.

The User Agent Insight API user agent strings to identify device, browser, and operating system details accurately.

The Random IP Generator API creates random IP's addresses, serving diverse technical and analytical needs with efficiency.

Automate age calculations for individuals or events, streamlining age-related tasks and ensuring precise date computations effortlessly.

Create personalized QR codes for your business with ease.

The Device Detector API user agent strings to identify device, browser, and operating system details accurately.

The Anonymous IP Generator API simplifies testing by dynamically creating IP addresses. This helps developers and network administrators in various testing scenarios.

Use this API to check the availability of a certain domain. Be able to retrieve its age as well and if it's available for purchase.

Website Contact & Social Media Extractor API. This high-performance, asynchronous API allows you to extract emails, phone numbers, and social media links from any public website in seconds. Built with performance and security in mind, this tool is ideal for lead generation, CRM enrichment, and contact validation workflows.

The User Agent Insight API user agent strings to identify device, browser, and operating system details accurately.

The Device User Agent Parser API identifies and extracts information from user-agent strings, aiding in device detection and user experience optimization.

The Random Data Generator API offers several categories of data, including boolean values, characters, numbers, names, and more.

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

Imaginary User API: Streamline development and testing with synthetic user data, effortlessly generating diverse profiles for realistic simulations and efficient application testing.

"Website Name Availability API streamlines real-time domain checks for efficient domain exploration."

The Global Temporal Data API provides accurate time zone information with historical data for seamless integration of global applications.

"Elevate applications and simulations with a versatile, randomized user profile generator for authentic testing and development."

Create high-quality, customizable QR codes with logos, colors, and custom styles. Perfect for marketing, branding, and dynamic links.

The Mock User Profile Generator API generates fictional user profiles for diverse applications, including testing, design, research, and more. Highly versatile.

The Unique Usernames API generates unique usernames for registry systems, simplifying the registration process and ensuring distinct user identities.

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 Expression Evaluation API is a versatile natural language calculator that can evaluate mathematical expressions and return the results in plain text. Simply input the expression to be evaluated, and the API will scan and compute the calculation, making it an easy-to-use tool for developers who want to incorporate a calculator function into their applications.

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.

The Fake Users Generator API allows developers to generate fake user data for testing and development purposes. It generates random user profiles including names, addresses, emails, phone numbers, and more. The API also allows developers to specify criteria to generate more realistic data such as demographics, location, and occupation. It can be used to populate databases, create test accounts, and more.

Convert between 138 units across 19 categories with auto-detection, compound measurement parsing, batch conversion, locale formatting, and ingredient cooking conversions. Fast, stateless, and fully documented.

The Device Information Parser API processes user agent strings to accurately recognize device, browser, and platform details.

A tool with a large database offering names. Simplifying the process of choosing meaningful names for newborns.

Be able to get names for girls, boys, and gender-neutral via the Human Name Generator API.

Korean public holidays with substitute-holiday logic, plus accurate Revised Romanization of Korean text - in one fast, zero-dependency JSON API on a global edge. Check if any date is a public holiday, list a year's holidays, romanize Hangul, or get today's Korea date and holiday status. Lunar-solar conversion, the 24 solar terms and the sexagenary cycle coming in v1.1.

The Mock User Profile Generator API is a versatile tool that creates fictional user profiles for a wide range of applications, such as testing, design, research.