A clean, ad-free countdown timer you can drop into any classroom site, study blog, or tutorial in one line of HTML. Free for personal and commercial use.
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Loads with no preset. Visitors pick 1m / 5m / 10m / 25m / 50m via the chip buttons.
Loads pre-set to 25 minutes. Add ?t=SECONDS for any custom duration — ?t=300 for 5 minutes, ?t=3000 for 50 minutes, etc.
Good for stretching breaks, quick exercises, and warm-ups.
Drop a silent classroom timer into Google Sites, Canvas, or any lesson page. No login walls, no ads, no distractions.
Pair the widget with Pomodoro and deep-work articles so readers can start a focus session without leaving the post.
Embed a 25 / 50 / 90-minute preset directly inside coaching pages, course content, or Notion-embed blocks.
Workout, recipe, meditation, language drills — anywhere a reader needs to time a step while staying on your page.
Yes. Personal, classroom, blog, and commercial use are all free. The only requirement is the small "Powered by TimeNinja" attribution link inside the widget stays visible.
Yes — add ?t=SECONDS to the iframe src. ?t=1500 for 25 minutes, ?t=300 for 5 minutes, ?t=3000 for 50 minutes, etc. Users can still change it with the chips.
Yes. It's responsive and scales to the iframe's width. width="100%" is recommended so it adapts to the container.
Yes — the widget respects the visitor's system colour scheme automatically and switches between light and dark to match the surrounding site.
Email timeninjabiz@gmail.com with a link to the page where you've embedded the widget and we'll take a look.