8,000 real letters written by ancient Romans, all translated and searchable.

Aeronautical charts and flight planning tools for pilots.

Open access repository of scholarly articles in physics, math, computer science, and more.

Professional network for scientists and researchers to share papers and results.

Database of biomedical and life sciences literature.

Real-time statistics about the internet: users, websites, traffic, and more.

Reverse image search engine to track image sources and usage.

AI-powered academic paper search engine.

Live flight tracking with alerts and aviation data services.

Aggregator for millions of open access research papers.

Education Resources Information Center with journal articles and reports.

Summarizes terms of service agreements to make them easier to understand.

Live ship tracking worldwide with vessel details and port information.

Research papers and preprints in social sciences and humanities.

Digital library of academic journals, books, and sources.

Cybersecurity database for analyzing digital assets and exposure.

Check username and domain availability across hundreds of platforms.

Directory of open access scientific and scholarly journals.

Millions of free 3D models, images, and data from the Smithsonian.

Unofficial Steam database for tracking games, sales, and stats.

Platform for sharing academic research papers.

Malware analysis and threat intelligence platform.

Online planetarium to explore stars, constellations, and planets.

Instantly search social media username and domain availability.

Analyze websites to see what technologies they’re built with.