M MovebankMovebank is a free online database hosting 10.4 billion animal location records. Manage, share, analyze, and archive wildlife tracking data with powerful tools and APIs.(0)0
AJ DesignerAccess 229+ free professional calculators for physics, fluid mechanics, thermodynamics, engineering, math, and finance. High-precision results with unit conversions.(0)0
LingueeSearch over 1 billion human-translated example sentences across 25+ language pairs. Linguee offers contextual dictionary lookups for English, German, French, Spanish, Portuguese, and more.(0)0
TupuTupu is a free non-profit mentorship platform connecting underrepresented groups in tech with experienced mentors for 1:1 career growth and guidance.(0)0
Pramp AI Interview PrepPractice live mock interviews for free with Pramp (Exponent Practice). Get matched with peers for coding, system design, behavioral, and PM interview prep.(0)0
Chatbot ArenaChat with and compare top AI models like ChatGPT, Claude, and Gemini side-by-side. Vote on responses to shape the world's leading crowdsourced LLM leaderboard.(0)0
N2YO Satellite TrackerTrack 34,000+ satellites in real time with N2YO.com. Get live orbital positions, pass predictions for your location, ISS HD streaming, and email/SMS alerts — completely free.(0)0
PrampPractice live mock interviews with peers for free on Pramp. Covers coding, system design, behavioral, product management, and more to help you land top tech jobs.(0)0
Open LibraryOpen Library is a free, open-source library catalog by the Internet Archive. Browse, borrow, and read millions of eBooks across every subject — no cost, no subscription.(0)0
NDBC BuoysAccess real-time and historical meteorological and oceanographic data from NOAA's National Data Buoy Center. Monitor buoys, tsunami alerts, and ocean conditions worldwide.(0)0