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Show HN: An offline desktop companion to help maintain a healthy blink rhythm

Show HN: An offline desktop companion to help maintain a healthy blink rhythm

1 day ago

On-device · No cloud

More than just a blink rate detector.

EyesRhythm uses your webcam to score how often and how steadily you blink on long screen days. Poise shows which way you turned your head, so the neck and shoulders get a change of direction. No account, and no video leaving your machine.

EyesRhythm Trace view showing a five-minute live ORI graph
EyesRhythm Lumen avatar with Atlas, Vesper, Lens, Trace, and Poise in the picker
EyesRhythm Poise view with a face grid and a red-to-green direction dial
EyesRhythm camera setting with Hybrid multi-camera mode selected
EyesRhythm companion with Beep, Visual, and Practice controls
EyesRhythm dashboard highlighting the auto FPS camera pipeline card
EyesRhythm daily ORI report chart with weekly and monthly tabs

See the last 5 minutes of your blink rhythm on a live graph.

EyesRhythm
Eyes open 2,184 blinks today
Healthy desk ORI Practice daily. It helps build muscle memory.
Ocular Rhythm Index 78 /100
Screen time 3h 12m
FPS 30
Look angle 8 °
Beep B Visual A Practice P

Stays beside the work. Counts only while you are at the screen.

Why it exists

Your eyes work hard for you. Screens make them work worse.

Focused computer use often cuts blink rate in half. Sparse, uneven blinking is a known driver of digital eye strain, dryness, grit, fatigue, blurred vision, and it is easy not to notice until the eyes already hurt. EyesRhythm is a blink rate detector that sits beside that work.

What rhythm means

Rate and regularity, together.

Rate is how often. Regularity is how steady. Enough blinks can still arrive in bursts and droughts; a slow but even pattern still leaves the surface dry. EyesRhythm folds both into the Ocular Rhythm Index (0 to 100). Maximize your healthy desk ORI, use practice daily, it helps to build muscle memory.

The companion

It watches, scores, and, if you ask, gently nudges.

ORI on a compact window. Alert is always on: Visual by default, a quiet orange pulse, or Sound if you click A. Optional beep on each blink. Practice is a two-minute coach so the habit is easier to feel. Poise is the neck’s half of the same sit. The dial turns green where you looked and stays red where you did not, so a still pose gets a turn up, down, left, or right, and the neck and shoulders can relax before you face the work again. A wellness companion, not a medical device. Lasting discomfort belongs with an eye-care professional.

Get the highlights

A companion, not another dashboard.

Poise

A dial of where your head went today, in 30° slices. Green is where you looked. Red is a direction you skipped. Turning through those directions lets the neck and shoulders ease, then you come back to the screen.

Live blink rate

A webcam blink rate detector in a compact window. ORI, screen time, and look angle stay in view. Rate and regularity sit on Trace.

Visual or Sound

Alert stays on. Visual is a quiet orange pulse. Click A for Sound. Beep (B) is a separate click on each blink.

Beep on each blink

A tighter feedback loop. Optional click on every counted blink.

Practice

A countdown, then a guided two-minute session that paces blinks so the habit is easier to feel.

Dockable GUI

Open Settings and Reports beside the companion, then hide the panel to keep the window small.

Built for the desk

A small window next to your work. Camera preview stays put-away unless you open Lens.

A peony in full bloom beside an open laptop showing a pair of happy eyes.

We care about your privacy

100% local. Nothing leaves this computer.

  • The app stays on your computer from the first launch.
  • No account, no license key, no cloud, and no analytics.
  • Camera frames stay on this computer. Nothing is uploaded or kept as a film of your face.
  • Today’s totals and preferences stay in a local folder, yours alone.
Read the privacy page

A copy for your desk

Keep it nearby. It’s free.

Download for macOS or Windows. No account and no license key. The app stays on this computer.

Free

macOS and Windows

  • No account and no license key
  • Stays on this computer
  • Camera frames never leave the machine

EyesRhythm 1.5.0. Your browser saves EyesRhythm-1.5.0.dmg (93 MB) or EyesRhythm-Setup-1.5.0.exe (84 MB). Drag the Mac app into Applications. On Windows, run Setup.

Tested on Intel Core i7 and on Mac processors. We recommend this configuration.

FAQ

Questions, answered.

What is a blink rate detector?

A blink rate detector uses a camera to notice each blink and measure how often they happen, usually as blinks per minute. EyesRhythm does that on your Mac or Windows computer, then also looks at how evenly those blinks are spaced.

Does EyesRhythm work with a laptop webcam?

Yes. It uses the built-in camera on a Mac or Windows laptop, or a USB webcam. Sit as you usually work so the camera can see your eyes. The setup guide in the journal walks through the few things that help.

Does any video leave my computer?

No. Frames are read on this machine and discarded. There is no account, no license key, no cloud, and no analytics. Camera frames are not uploaded or kept as a film of your face.

How is this different from a blink counter?

A counter only totals blinks. Six blinks can still mean two very different minutes if they arrive in clumps with a long dry wait in the middle. EyesRhythm folds rate and regularity into one Ocular Rhythm Index, from 0 to 100.

What is Poise for?

Poise shows which way you turned your head today, in 30° slices. Green is where you looked most. Red is a direction you barely used. Long computer work parks the neck in one pose. Poise is there so you move it up, down, left, and right from time to time, which lets the neck and shoulders relax, then you look back at the screen. It is a reminder, not a treatment.

Is EyesRhythm a medical device?

No. It is a wellness companion for desk work, not a diagnosis or a treatment. Lasting discomfort or a change in vision belongs with an eye-care professional.

A quiet evening desk with a lamp, notes, glasses, and a laptop.

About

Built from a real pain, not a trend.

The developer behind EyesRhythm has spent more than two decades working as a software developer. Years of long hours in front of computer screens gradually took a toll on his eye health, leading to frequent dryness, redness, and, at times, significant discomfort.

Advances in modern technology made it possible to create EyesRhythm: a simple, lightweight companion designed to support healthier blinking habits during extended screen use. The same hours also leave the neck and shoulders holding one pose. Poise was added so the day includes turning the head: the dial goes green where you looked and stays red where you did not, a prompt to move, then return to the work. Having personally used the application, he has found it useful and effective enough to share with others.

Our goal is simple: to build technology that solves a real problem without creating another distraction. EyesRhythm works quietly in the background, helping users become more aware of their blink rhythm while staying focused on their work.

We believe the best products are shaped by real experiences and honest feedback. If you choose to try EyesRhythm, we would greatly appreciate hearing about your experience at [email protected]. Your feedback will help us continue improving the product and ensure that it remains simple, useful, reliable, and unobtrusive.

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