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.

Extract title, description, Open Graph image, and favicon metadata from any URL — a cached link preview API with built-in SSRF protection for building rich unfurl cards.

The Measure Conversion API streamlines unit conversions effortlessly, meeting the needs of various applications with precise and adaptable conversion features.

🔴 Try for FREE! 🔴 ⚡The ultimate URL redirect tracking solution that provides deep insights into redirect chains with a fresh IP address for each request. Perfect for SEO professionals, security researchers, and digital marketers who need reliable redirect analysis at scale.

Global Measure Transformer API simplifies various unit conversions with full support and intuitive design.

Get electricity price data by European region, with details of cost in euros per megawatt hour and date of consultation.

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.

Enhance applications and simulations by incorporating a flexible, random user profile generator for genuine testing and development purposes.

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 QR Code Builder API facilitates easy generation of QR codes for various applications. Users can dynamically generate QR codes with custom content and styling options, making it ideal for integrating QR code functionality into websites, mobile apps, and other digital platforms.

Automate logo URL extraction with ease, perfect for developers seeking seamless website integration and asset management.

Strengthen your brand's social presence with logo extraction, simplifying visual content for social media platforms.

Turn any URL into structured data: SEO/OpenGraph metadata, contacts, social profiles, 40+ tech-stack signatures, SEO & security audits, and AI-ready Markdown — one fast API call.

Generate strong random passwords with a cryptographically secure generator. Control length and character sets, request many at once, and check password strength. Nothing is stored or logged.

Create scannable codes as image files from any text or link. Choose the size, margin, foreground and background colors, and error correction level. Returns a ready to use image.

The Fictitious Identity Creator API generates authentic digital identities, perfectly suited for software testing, research purposes, and safeguarding privacy.

Extract logos effortlessly from websites to enhance your brand visibility and consistency online.

Parse any sitemap or sitemap index, even compressed ones, into structured data with last modification, change frequency and priority. Follow index children automatically, or generate a valid sitemap from a simple list.

MockHero’s Mock Data API simplifies creating placeholder data, perfect for testing and development needs.

Expands an iCalendar RRULE into occurrence dates between a start and end time.

The Digital User Profile Generator API generates fictitious user profiles for various applications, aiding in testing, prototyping, and data simulation with ease.

The Random User Information API automates the creation of synthetic user profiles for testing and development, enhancing efficiency while respecting user privacy.

Convert CSV to clean, typed JSON by URL or raw text. Auto-detects numbers, booleans, and nulls; handles quoted fields, embedded commas, and custom delimiters (RFC-4180). Fast, stateless, and MCP-ready for AI agents.

Virtual User Creator API: Generate diverse, randomized user profiles for realistic testing and development, enhancing applications and simulations

Unleash branding creativity. Generate distinctive brand names instantly, customized to your vision. Effortlessly elevate brand identity.

The QR Code Maker API allows developers to easily generate custom QR codes. It offers various customization options like size, color, and embedded data types such as URLs and text. This API ensures high-quality QR codes and seamless integration into any application, making it an ideal solution for diverse needs.

Convert JSON to CSV, currencies, dates, and units, plus generate QR codes — a lightweight all-in-one data utility toolkit for developers.

This API validates global phone numbers, confirming correct format, country, location, international code, and providing accurate national, international, and E.164 formats.

The Web Expiration Tracker API enables users to swiftly confirm the expiration date of any domain by just inputting its name. It promptly provides the remaining days until expiration, simplifying domain management and competitor monitoring tasks.

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

True RNG API — Hardware Entropy Random Number Generator using RDRAND, /dev/hwrng, CPU thermal noise.

The Famous Quotes API offers a vast collection of over 100,000 famous quotes from 10,000 authors, covering a wide range of topics. With categorized quotes and over 100 categories to choose from, this API allows for random bulk retrieval of inspirational and insightful quotes for various applications and projects.

Enterprise-grade QR Code Generator API — generate SVG & Base64 QR codes in milliseconds. Fully customizable size, color & error correction. 49ms avg response, MCP-ready. Free trial available.

PresentID QR-Code & Barcode scanner API can scan both QR code and barcode.

Validate emails, phone numbers, URLs, and IP addresses through a simple REST API — a lightweight developer validation toolkit.

Heading Composer API: Ignite creativity with dynamic, personalized titles. Transform content strategies and captivate audiences effortlessly. A game-changer in content creation.

The User Simulate API generates virtual identities with personal and business data such as name, address and corporate profile. Ideal for form and database testing.

Engineering-grade API for rapid solar, battery, diesel hybrid feasibility, financial modelling and lender-ready project screening across African commercial & industrial markets.

Robbery fake data API facilitates testing by generating synthetic theft-related data

Turn any activity, spend, freight, or flight into kg CO₂e from open, sourced data (UK DEFRA, US EPA, Ember, IPCC) plus live grid carbon intensity for GB, US & EU and 213 countries.

True Email Checker API validates email addresses by verifying their format, domain existence, and detects disposable or invalid emails to ensure accurate data.

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

Dummy User API An arbitrary, placeholder identity often generated for testing or demonstration purposes, without specific personal or authentic attributes.

Lorem Ipsum API offers developers an easy way to generate placeholder text for their projects. It allows developers to retrieve a random paragraph, sentence or word of Lorem Ipsum text for use in their applications.

Trust our Reliable API for consistent date and business day calculations, ensuring you never miss a deadline again.

Baby Name Generator API: Discover meaningful, culturally diverse names for your little one. Simplify the daunting task of choosing a name.

This API is a powerful and versatile tool that allows developers to easily integrate a unique and randomized username generation feature into their applications.

EPC label, EPBD MEPS compliance, and stranding-risk screening across 8 EU markets — primary energy, solar obligation, renovation cost, and cap-rate discount modelling for lenders and asset managers.