Embed a countdown timer on your site
Add a free Online Timer to a blog, classroom page or lesson plan with one iframe. The timer runs in your visitor’s browser. Online Timer does not set cookies, load ads or send analytics from the embed.
This is how it looks in a page.
Try Start, Pause and Reset below. Sound needs a click inside the preview, just like any other media in an iframe.
Embedding answers.
What does the embed include?
A countdown with Start, Pause, Reset, +1 minute, an optional alarm and a clear link back to onlinetimer.app. Preset length comes from the m (minutes) query parameter.
Is there tracking?
No. The embed page has no analytics, no advertising scripts and no third-party requests. It is also marked noindex so search engines do not treat it as a separate page.
Will the alarm work inside an iframe?
Yes after the visitor presses Start (or another control) inside the embed. Browsers block sound until there is a user gesture in that frame.
Can I change the look?
Use theme=dark for a dark page around the grey card, or leave the default for a light page. The timer card itself stays grey so the digits stay readable.