生產力工具

Free private recovery tracker: streaks, urge timer, triggers, journal, and relapse support. Browser-based, no signup, data stays on your device.

Build a calm, practical positivity plan with thought reframes, short habits, and self-compassion prompts — not therapy, not toxic positivity.

Free microphone tester: check mic input, live volume levels, and record a quick playback test in your browser. No signup.

Free speaker tester: play test tones, check left/right channels, and verify volume in your browser. No signup.

Free running track distance calculator — start GPS tracking, see live distance and estimated steps. Private, in-browser.

Free flashcard practice tool — paste term|definition lines or use sample decks. Flip cards, mark Know/Don't know, and shuffle.

Free multiple choice quiz practice tool — paste questions or use a sample quiz. One question at a time, score at the end, review mistakes.

Free typing speed practice tool — type a short passage and see live WPM and accuracy. Restart anytime with easy or medium samples.

Free Simon-style memory sequence practice game — watch the pattern, tap it back, and beat your best score stored in your browser.

Free Pomodoro focus timer — classic 25/5 or custom work/break intervals. Start, pause, reset, and optional end sound. No signup.

Free SIP step-up calculator — project mutual fund corpus with yearly SIP increases vs a flat SIP. Instant estimates, no signup.

Free meeting cost calculator — estimate the real cost of meetings from attendees, hourly rates, and duration. Client-side only.