Free Data & Reference APIs

The most-used fake REST API ever — posts, comments, users, todos for prototyping anything.

Fake store, users, carts, posts and auth flows — a full fake backend for front-end practice.

E-commerce fake data — products, categories, users and auth for shop demos and practice.

250M+ scholarly works, authors and institutions — a research goldmine, fully open.

Metadata for 140M+ DOIs — papers, books and citations, free in the polite pool.

200M+ academic papers with AI-powered recommendations and citation graphs.

University names and domains for every country — handy for edu and signup flows.

Global biodiversity data — species, occurrences and taxonomy from the world's museums.

Wildlife observations from citizen scientists everywhere, with photos and locations.

Generate summaries, templates, and redact sensitive data from meeting notes

Online File Conversion API

E-signature API for apps and AI agents: send Markdown or .docx contracts by email and get signed PDFs with a SHA-256 seal, audit trail and webhooks

Programmatic access to all data in your asana system

ClickUp is a robust, cloud-based project management tool for boosting productivity

Create and manage interactive video-style forms, quizzes, and surveys

Online file converter for audio, video, document, ebook, archive, image, spreadsheet, presentation

HTML/URL to PDF/PNG, Office documents to PDF, image conversion

This API converts any HTML (file, url, base64) to a PDF

Transform raw RSS data into structured JSON

This API converts any speech to text multiple languages and dialects

Convert a Word document (doc, docx, or ODF formats) to a PDF document

File Conversion API for Developers - Powerful REST API for file conversion. Convert documents, images, ebooks, and more. Simple integration, dev-friendly pricing.

Generate PDF documents from templates with a drop-and-drop editor and a simple API

HTML to PDF or PDF to PNG/Text & PDF merging/extraction/merging APIs

The Resume Parser API parses a resume (CV) file from multiple formats (PDF/DOC/DOCX/TXT/RTF) and returns an extensive object of data points

Convert between Markdown, HTML, CSV, JSON, and YAML formats

APIs to handle all your file transformations. Word to PDF, Markdown to HTML, CSV to JSON, audio and many more

Convert PDF, Word, PowerPoint, Excel and HTML documents to Markdown for RAG and agents

Automate business workflows

Render PDFs and images from HTML templates (Jinja2, Liquid, Handlebars) or Word files with one API call. EU-hosted, free tier

Generate, update, and manage contracts from your own systems with a secure and scalable REST API

Merge PDFs and strip or inspect photo metadata (EXIF, GPS) with one HTTP call; files processed in memory, not stored

HTML/URL to PDF

Convert, merge, split, extract text and add page numbers for PDFs. Free for 250 documents/month

Extract structured invoice data using AI with this API. Multiple formats supported

Extract plain text from PDF documents for LLM and RAG pipelines

An open source platform for developer collaboration

File converter and PDF compressor. Extract images from video, convert documents, Markdown and more

Integrate with Notion

Clean document photos for printing, remove shadows and fix lighting

The Paraphrase Text Generator API generates a paraphrased version of the provided text

Generate PDF documents using API

High-quality HTML to PDF conversion with templates and AI generation

HTML and URL to PDF API

HTML to PDF API with support for custom headers, footers, fillable form fields, and encryption

HTML, Markdown or a URL to PDF, PNG or JPEG, plus PDF merging. The file comes back in the same response. Free for 10 documents/month

HTML and CSS to PDF with page headers, footers and page numbers, no headless browser

Structured OCR for IDs, passports, and driver's licenses across 30+ countries

Data from XML or JSON to PDF, HTML or Image

Send PDFs, ZPL labels and ESC/POS receipts to printers you control, from any language

Read public WeChat Official Account articles as Markdown via REST/MCP; anonymous shared quota or optional API key

HTML to PDF crazy fast, 500 pdfs/month + CDN-ready

Generate styled HTML reports from CSV or JSON data with built-in templates

Provides screenshot, HTML to PDF and content extraction APIs

Project management for teams and AI agents via hosted MCP (boards, cards, missions, approvals)

Todo Lists

Convert web page to MarkDown

Free vector file converting API

Convert your files to a variety of formats using Vertopal API

Automated time tracking leaderboards for programmers

This API lets you convert wav files to mp3

Full stack project management

Perfume knowledge from the 10ML Fragrance Index: notes, accords, fragrance families, similar scents, houses and expert guides

The Internet Archive

Unofficial Argentinian data API

Contribute or search one of the largest black history fact databases on the web

JSON formatted details about Telegram Bots available in database

United States ham radio callsigns

Location Information Prediction

Data on higher education institutions in the United States

Coworking spaces and flexible offices in European and UAE cities, with operator-listed prices and a per-city price index under CC BY 4.0

Backlink and domain-link data from Common Crawl's open web graph

An open access platform for sharing Canadian water quality data

Security-update end dates, recalls and evidence for 1,300+ phones, tablets, Chromebooks and routers

Search and read Edgepedia, a free and growing encyclopedia with citations. No key.

Broadest collection of public data

Address search via the French Government

Fetches metadata from any URL passed to it, including Open Graph tags.

Federal Statistical Office Germany

Unified German city open data: weather, air quality, EV chargers, transit, demographics

People groups of the world with the fewest followers of Christ

Create and interact with Datasets, Notebooks, and connect with Kaggle

Get JSON formatted summary with title, description and preview image for any requested URL

Lottery draw results and number statistics for Canada, US and Europe, plus Canadian scratch-ticket remaining prizes

Get measure resources and influence to rank the relative power of states in Asia

Extract structured data from any website

Open data about nobel prizes and events

Spatial (GIS) and non-spatial city data for Minneapolis

Large datasets repository of African open data

Data on corporate entities and directors in many countries

Data on international sanctions, crime and politically exposed persons

Recreational areas, federal lands, historic sites, museums, and other attractions/resources(US)

Wages and employment for every US occupation by state and metro area, from Bureau of Labor Statistics survey data, with cost-of-living adjustment

Perfume notes, families, houses and raw materials, each tied to a page on scento.com

Content Curation Service

Access to Open Data from Governments, Non-profits and NGOs around the world

Access to urban research data for the Bulgarian capital Sofia

Retrieve Udemy courses, coupons, instructors, and metadata

Open data of the city Umeå in northern Sweden

University names, countries and domains

More than 1.5 million barcode numbers from all around the world

The largest set of publicly available real time urban data in the UK

Collaboratively edited knowledge base operated by the Wikimedia Foundation

Mediawiki Encyclopedia

Find Local Business

European patent search system api

API is intended to explore and visualize trends/patterns across the US innovation landscape

Taiwan patent search system api

USA patent api services

A Meatier Lorem Ipsum Generator

Generate massive amounts of fake (but realistic) data for testing and development.

Fake store rest API for your e-commerce or shopping website prototype

Data generator API. Profiles, vehicles, banks and cards, etc

Fake REST API for prototyping

Disposable Email

Fake REST API powered by Lua

Generate fake data to JSON, CSV, TXT, SQL and XML

Random Identity Generator with custom response format

Fake user profiles and companies with 100+ fields each

Random data generator

Generate random robot/alien avatars

Generate UUIDs

Random commit message generator

Generate yes or no randomly