Search the Open Food Facts database (3M+ products) for nutritional data, Nutri-Score, Eco-Score, NOVA grade, allergens, and ingredients. Supports text search, barcode lookup, and category browsing. No API key required.
Convert between 166+ world currencies using real-time exchange rates. Supports single conversion, all rates for a base currency, and multi-base comparison modes. Powered by the free ExchangeRate API with daily updated rates.
Convert documents between formats (HTML, Markdown, DOCX, EPUB, PDF, LaTeX, RST, ODT, PPTX) using Pandoc. Accepts raw text or URL input.
Detect Shopify store themes and installed third-party apps by analyzing HTML source and HTTP headers. No API key required.
Search and extract academic paper metadata from the OpenAlex API. Supports keyword search, author search, institution filter, and citation analysis. Free, no API key required. 250M+ scholarly works.
Validate web pages against W3C HTML standards. Get detailed error, warning, and info reports using the official W3C Nu HTML Checker API.
Search and extract TV show metadata from the TVMaze API. Includes show details, episodes, cast, and daily schedules. Free, no API key required.
Run Lighthouse audits on web pages for Performance, Accessibility, SEO, and Best Practices scores using built-in Lighthouse CLI + Chrome. No API key required.
Scrape crypto derivatives data from CoinGlass — funding rates, open interest, liquidations, long/short ratios, options, and Bitcoin on-chain indices across all major exchanges.
Search and extract book data from Open Library (openlibrary.org) — titles, authors, publishers, ISBNs, ratings, reading stats, cover images, and more. Free API, no key required.
Extract economic, social, and environmental indicators from World Bank API. GDP, population, health, education, poverty data for 200+ countries. Free API, no key required.
Fetch space data from NASA APIs: Astronomy Picture of the Day (APOD), Near Earth Objects (NEO), Mars Rover photos, and Earth images (EPIC). Free, no API key required.