Free APIs

Current weather, 9-day forecasts, hourly forecasts, and sunrise/sunset/moon phase for any city or coordinates worldwide.

Real-time earthquakes worldwide from the USGS: recent quakes, quakes near a location, historical search and event details.

Search universities in 200+ countries, look up a university by web domain, and verify student email addresses.

Create QR codes for links, text, UPI payments, Wi-Fi logins and contact cards (PNG/SVG, custom colours) and read QR codes from images.

Get video info, grab thumbnails, make storyboard contact sheets, extract audio (MP3/WAV/M4A) and convert clips to GIF.

Public holidays for 150+ countries — including Indian states — plus 'is it a holiday?', upcoming holidays and working-day counts.

Evaluate expressions, solve equations, and compute derivatives, integrals and simplifications — with exact and decimal answers.

Password strength scoring, private breach checks against known leaked passwords, secure password generation, hashing and bcrypt checks.

English definitions, synonyms, antonyms, rhymes, 'words that mean…' and autocomplete — fast and fully offline.

Search Wikipedia in 300+ languages, get article summaries with images, 'on this day' events, random articles and autocomplete.

Extract text from images and scans in English, Hindi and Marathi, and pull out emails, phone numbers, URLs, PAN and GSTIN.

Validate and format phone numbers for 240+ countries: valid or not, mobile or landline, carrier, region, and E.164 format.

Every country's capital, population, area, currency, calling code, languages, continent and neighbours — by code, name or currency.

Convert CSV ⇄ JSON, generate realistic fake test data (including Indian names and addresses), and create UUIDs in bulk.

Sentiment, keywords, extractive summaries, readability scores and text statistics for English text — one simple JSON call each.

Detect throwaway and temporary email addresses (Mailinator, 10MinuteMail and 8,900+ more domains) at sign-up — single, batch or classify.

Validate email addresses: syntax, domain and mail-server (MX) checks, disposable detection, typo suggestions and normalisation.

Top, new and best tech stories from Hacker News, full-text news search, story details with comments, and Ask/Show HN.

Detect the language of any text (55 languages), transliterate Indian scripts (नमस्ते → namaste) and identify writing scripts.

Medicine information from the US FDA: uses, dosage, warnings, side effects, reported adverse events and recalls.

BMI, daily calories (BMR/TDEE), ideal weight, body-fat percentage and water intake — using standard medical formulas.

Daily exchange rates for 30 currencies from the European Central Bank: latest, historical, conversion, time series and % change.

Search millions of books by title, author or subject, look up any ISBN, and find authors — powered by Open Library.

Validate Indian payment details — IFSC (with bank and branch), GSTIN, UPI ID format — plus IBAN and card BIN checks.

Tournament fixtures, league tables, Elo ratings and cricket net run rate / required run rate calculators.

Geocode cities to coordinates, reverse-geocode coordinates, measure distances and find the time zone of any place.

Nutrition facts, ingredients, Nutri-Score and allergens for millions of packaged foods — by barcode or name.

Generate EAN-13, UPC, Code 128, ISBN and other barcodes as PNG or SVG, read barcodes from images, and validate check digits.

Look up airports and airlines worldwide by IATA/ICAO code or name — location, type, elevation, country, call sign and more.

Resize, crop, convert, rotate and compress images, add text watermarks, extract colour palettes and make placeholder images.

Remove image backgrounds in one call — transparent PNG/WebP cut-outs or a solid-colour background, from a file, URL or base64.