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Free tools for the homework you actually have.

Work out your GPA, format an APA citation, time a study session or quiz yourself on world capitals. Twenty tools that run in your browser, plus plain-English articles on the subjects you study.

Popular: GPA Calculator Citation Generator Word Counter Pomodoro Timer

Exam percentage

84% B

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Focus timer

25:00

Full timer

Citation

Smith, J. A. (2024). How photosynthesis works. Science Today.

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  2. 2Type in your numbers or text
  3. 3Get the answer and the working behind it

The toolbox

Twenty tools, sorted by what you are doing

Everything runs in your browser. Nothing you type is sent to us.

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01

Math & Grades

GPA, final-exam targets, percentages and fractions.

GPA Calculator Semester GPA on the 4.0 scale. CGPA Calculator Combine semesters into a cumulative GPA. Percentage Calculator Marks to percent, percent of, percent change. Grade Calculator Weighted grade and the final score you need. Fraction Calculator Add, subtract, multiply, divide, with steps.
02

Study & Focus

Timers, planners and counters for getting the work done.

Pomodoro Timer 25-minute focus blocks with breaks. Study Planner A daily plan you can tick off. Exam Countdown Days, hours and minutes to each exam. Reading Time Calculator Reading and speaking time for any text. Word Counter Words, characters, sentences, keywords.
03

Writing & Research

Citations, readability, text case and flashcards.

Citation Generator APA 7 and MLA 9 for sites, books, journals. Text Case Converter Title, sentence, UPPER, camelCase and more. Readability Checker Flesch score and grade level. Flashcard Maker Make a deck, flip through it.
04

Quizzes & Trivia

Ten-question quizzes and a random question machine.

General Knowledge Quiz Ten questions across six subjects. Science Quiz Space, chemistry and the human body. Random Question Generator One trivia question per click. World Geography Quiz Capitals and countries worldwide.
05

Science & Units

A scientific calculator and a unit converter.

Scientific Calculator Trig, logs, powers, roots, factorials. Unit Converter Length, weight, temperature, speed, data.

Subjects

Read up on a subject

Short, clear explanations of the questions that come up in class.

Quizzes

Ten questions. See how you do.

Multiple choice, instant feedback, and a list of the ones you missed at the end.

Quick round

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Articles

Recently published

All articles

The first articles are being written. Check back soon.

Study guides

Study habits that hold up during finals week

Practical advice on focus, memory and planning, written for real student schedules.

All study guides
  1. How to study when you keep getting distracted
  2. Active recall and spaced repetition, explained
  3. A two-week plan for finals
  4. Time management for students with a job
  5. How to remember what you read

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