Your 20-20-20 Eye Break Timer
Free 20-20-20 rule timer for eye strain. Every 20 minutes it reminds you to look at something 20 feet away for 20 seconds, with a sound alert.
- Free to use
- No signup
- Nothing to install
- Runs in your browser

A real example, step by step
Real data entered into the 20-20-20 Eye Break Timer, one screenshot per step. Nothing is mocked up.
Open the tool
The 20-20-20 Eye Break Timer opens ready to use, nothing to install or sign up for.

Enter your data
Type or paste your input.

Press Start
The 20-20-20 Eye Break Timer shows the result straight away, below the same form.

What is the 20-20-20 Eye Break Timer?
Staring at a screen for long stretches causes digital eye strain — dryness, blurred vision and headaches. Eye-care professionals recommend the 20-20-20 rule: every 20 minutes, look at something about 20 feet (6 metres) away for at least 20 seconds. This timer runs in the background of a browser tab, plays a gentle sound and shows a full-screen reminder when it is time to look away, then a matching 20-second countdown for the break itself.
A running total shows how long you have been working and how many breaks you have taken, which is useful for noticing just how long an uninterrupted session has run. It keeps working while the tab is in the background, and you can pause it any time — for example during a video call.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
20-minute work timer, 20-second look-away break.
Hard to miss, with a sound alert.
Total screen time and breaks taken.
Stop it for meetings without losing your session.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
Gamers and designers
A reminder that is easy to ignore without a prompt like this.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This utility | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
What is the 20-20-20 rule?
Every 20 minutes, look at something about 20 feet away for 20 seconds, to relax the eye's focusing muscles.
Does this really reduce eye strain?
Regular breaks are one of the most recommended ways to reduce digital eye strain; results vary by person, and good lighting and screen distance also help.
Will the timer work if I switch tabs?
Yes, it keeps timing in the background and will still alert you, using the tab title and a sound.
Can I change the interval?
The tool follows the standard 20-minute / 20-second rule; use the pause button for longer uninterrupted stretches.
Is any data collected?
No. The timer and its stats exist only in your browser tab and reset when you close it.
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A screen-break timer that follows the 20-20-20 rule for eye strain. Free to use.
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