About StudyTools
StudyTools is a free collection of practical tools for high-school and university students. It started from a simple frustration: the tools students need most — a weighted grade calculator, a timer that does not nag, a way to turn a 40-page PDF into something you can actually revise from — are usually buried behind sign-ups, downloads or paywalls.
What we build
- Calculators for grades, GPA, percentages, averages, fractions, time and scientific work.
- Study tools including a Pomodoro timer, exam countdown, flashcards and quizzes.
- PDF tools that merge, split, rotate, compress and convert files entirely in your browser.
- Writing tools for word and character counts, reading time, case conversion and formatting.
- Typing practice with academic and subject-specific passages.
- AI study tools that turn your own notes into study notes, flashcards, practice tests, quizzes and study guides.
How we think about AI
Every AI feature works from material you provide. Nothing is invented from thin air, and we say plainly on each tool that AI-generated study material should be checked against your course material before you rely on it.
Free and Premium
All the calculators, timers, PDF tools, writing tools and typing tests are free and need no account. AI generation costs money to run, so it is limited on the free plan and expanded on Premium.
Privacy in short
PDF and writing tools run in your browser — those files are never uploaded. Documents you add to the AI study suite are stored against your account so you can reuse them, and you can delete them at any time. See our privacy policy for the detail.
Get in touch
Found a bug, or want a tool we do not have yet? Our contact page has the details.