Productivity Tools
6 free productivity tools. Browser-based. No signup. Privacy-first.
什么是 Productivity Tools？
Productivity tools are free, browser-based aids for studying and time management — GPA and grade calculators, random group generators, flashcard makers, a Pomodoro timer and an exam countdown. They run client-side with no signup.
What are productivity tools?
Stay on top of study and schedules: compute a GPA or the grade you need, split a class into random groups, build flashcards to revise, run focused Pomodoro sessions, or count down to an exam. Small tools that remove everyday friction.
They run in your browser — free, private, and ready whenever you are.
Why client-side?
- Privacy: sensitive data (API keys, payloads, passwords) never leaves your device.
- Speed: no network round-trip — results appear as you type.
- Reliability: works offline once loaded.
- Cost: always free, no signup or rate limits.
Browse Productivity Tools
Study Tools · 4
常见问题
如果我关闭标签页，倒计时还会继续运行吗？
只有在页面打开时才会显示计时，但你设置的名称和目标日期会保存在本地，下次打开时会自动恢复。
使用的是哪个时区？
使用你自己所在的时区——你选择的日期会按照设备的本地时区来计算。
日期过了之后会怎样？
计时器会继续向上计数，并显示“已过去”，让你知道已经过了多长时间。
我的数据安全吗？
是的——数据只会保存在你浏览器的本地存储（local storage）中。
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