Study Pomodoro Timer

Customizable 25/5 study and break intervals with native Web Audio chime synthesis, session logs, and focus stats.

About this tool

Structure your study blocks effectively using the proven 25-minute Pomodoro methodology.

Tracks time cycles accurately using the browser timer with native Web Audio API harmonic chime synthesis.

Does the timer play sounds without an internet connection?

Yes. Sound is synthesized locally using the Web Audio API, requiring zero audio file downloads.

Does the timer record my sessions?

Yes. Finished sessions are logged in your browser, and the focus statistics are built from that log.

Can I change the interval lengths?

Yes. The 25/5 preset is only a starting point, and every interval can be set to your own length.

Audio chime requires initial user interaction per browser security policies.

The work happens in your browser, and the input is not sent to us.

Multi-Semester GPA CalculatorCalculate semester GPA and cumulative CGPA across 4.0, 5.0, and percentage grading scales with credit weighting.
Flashcard & Spaced Repetition Quiz MakerCreate interactive flashcards with 3D flip animation, Leitner 5-box spaced repetition tracking, and CSV deck export.
Markdown Study Notes OrganizerFast, client-side Markdown study notes manager with real-time word counting, reading time estimation, and subject tagging.
Academic Citation Generator (APA, MLA, Harvard, Chicago)Generate formatted bibliography references and in-text parentheticals for APA 7th, MLA 9th, Chicago 17th, and Harvard styles.
Weighted Course Grade CalculatorCalculate a course grade from weighted assignment categories and scores, checking that the supplied weights add to 100%.