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Study Hub

Grades, flashcards, citations and focus timers for students and teachers.

GPA CalculatorCredit-weighted GPA on the 4.0 scale.Final Grade NeededWhat you must score on the final to hit your target.Weighted GradeYour standing across homework, quizzes, midterm and final.FlashcardsType a deck, flip through it, shuffle. Saved in your browser.Study TimerPomodoro focus and break cycles with custom lengths.Citation GeneratorAPA, MLA, Chicago and Harvard references from your details.Readability CheckerFlesch, Flesch–Kincaid and fog scores for your writing.Quadratic SolverRoots, discriminant and vertex for ax² + bx + c.Number Base ConverterBinary, octal, decimal and hex, all at once.Random Picker & GroupsPick a name fairly, or split a class into groups.

About the Study Hub

The Study Hub is built for the two questions students actually ask — what is my GPA, and what do I need on the final to pass — plus the tools around them: flashcards you can type in seconds, a Pomodoro timer, a citation generator for four styles, and a readability checker for essays. There is also a random name picker and group maker for teachers. Flashcard decks save to your browser, so a refresh will not lose your work.

Questions

Does the GPA calculator work with my university’s scale?

It uses the standard US 4.0 scale with plus and minus grades. Institutions on a 5.0 scale, or that do not award minus grades, will not match — check the letter values against your own transcript first.

Are my flashcards saved?

Yes, to localStorage in that one browser on that one device. They survive a refresh but do not sync anywhere, and clearing site data removes them.

Can the citation generator find sources from a URL or DOI?

No — that needs an API. You enter the details and it formats them correctly in APA, MLA, Chicago or Harvard.

Does the study timer keep running if I close the tab?

No. The timer only runs while the page is open. Leave the tab open in the background and it continues.