Education Tools
Academic and learning tools
Sentence Diagram Generator
Visualize grammatical structures
Syntax Tree Generator
Linguistic parse trees instantly
Phylogenetic Tree Generator
Visualize evolutionary relationships
AI Worksheet Generator
Classroom materials in seconds
Knit Chart Generator
Design custom knitting patterns on an interactive grid.
Harvard Reference Generator
Generate standard Harvard citations for books, websites, and journals.
Image Citation Generator
Properly cite images, photographs, and artworks in APA, MLA, Chicago, and Harvard.
Grade Curve Calculator
Easily curve test and exam scores
High School / Semester Grade Calculator
Calculate final exam requirements
SAT Score Calculator
Convert raw SAT scores to scaled
AP Exam Grade Calculator
Calculate estimated AP test scores
AI College Essay Grader
Get instant feedback on college essays
University Grade Distribution Viewer
View historic college course grade curves
Missing Grade Calculator
Find out what you need on a missing test
Hypothesis Testing Calculator
Calculate T-tests and P-values easily
Wilcoxon Signed Rank Test Calculator
Calculate Wilcoxon W-statistics
Curve Test Calculator
Apply various grade curves to test scores.
Open Library Book Search
Search millions of books with cover art and details
Universities Search
Search universities worldwide by name or country
Nobel Prize Explorer
Browse Nobel Prize laureates and prizes by year and category
Art Institute of Chicago Search
Search artworks from the Art Institute of Chicago collection
Metropolitan Museum Art Search
Search artworks from the Met's open collection
Wikipedia Summary Lookup
Get quick Wikipedia summaries for any topic
SpaceX Rockets Explorer
Explore detailed specs of all SpaceX rockets
Numbers Math Facts Generator
Discover fascinating mathematical facts about any number
Zippopotam Zip Code Lookup
Look up location data from any US zip code or postal code
Open-Meteo Weather API
Get 7-day weather forecasts for any location worldwide
Free Dictionary API Lookup
Look up word definitions, phonetics, and examples
NASA Astronomy Picture of the Day
View NASA's daily astronomy photo with explanation