WildlifeData.orgDiscover and access millions of wildlife observations from global data portals. WildlifeData.org indexes repositories by ecosystem and species for conservation research.(0)Data & Analytics·Research & Education·Knowledge Management Tools0
Khan Academy KidsKhan Academy Kids is a free, ad-free educational app for children ages 2–8 covering reading, math, writing, and social-emotional learning with thousands of interactive activities.(0)Research & Education·Online Learning Platforms·Study Assistants0
Bohrium AIBohrium AI is an all-in-one AI-powered research hub offering academic search, collaborative notebooks, datasets, smart computing, and reproducible research tools for scientists worldwide.(0)Data & Analytics·Research & Education·AI Research Tools·Knowledge Management Tools0
StellwerkSimStellwerkSim lets you simulate classic German railway interlocking systems online with other players. Free to register, realistic timetables, multiplayer and solo modes.(0)Productivity·Research & Education0
Scales Practice GeneratorFree online tool to randomly generate scale practice sessions for ABRSM and Trinity graded music exams. Covers piano, woodwind, brass, strings, and more across all grades.(0)Research & Education·Online Learning Platforms·Study Assistants0
Rotala ButterflyFree planted aquarium calculators for nutrient dosing, CO2, lighting, and volume. Includes algae treatment guides and plant deficiency references for hobbyists.(0)Data & Analytics·Research & Education0
R Reef Chemistry CalculatorFree reef aquarium chemistry calculator. Calculate exact dosing amounts for calcium, alkalinity, and magnesium using 40+ commercial products or DIY chemicals.(0)Productivity·Data & Analytics·Research & Education0
ReefAppReefApp is a free marine aquarium app with a comprehensive encyclopedia of reef fish and invertebrates, water parameter tracking, and dosing calculators for reef hobbyists.(0)Data & Analytics·Research & Education·Knowledge Management Tools0
RAID eLearningAccess 110+ scuba diving, freediving, technical, and leadership courses for free. RAID's FREe-Learning platform lets you study any course level before you buy.(0)Research & Education·Online Learning Platforms·Knowledge Management Tools0
KravTrainerKravTrainer is a free Android app with 300+ randomized Krav Maga attacks presented via animation, text, and speech to make solo training more effective.(0)Productivity·Research & Education0
