100% local · open by design

See where your browser time really goes.

TabStyr quietly measures active time per tab and site, then turns it into a calm dashboard — trends, an activity heatmap, focus scoring, and gentle stale-tab nudges. Every byte stays on your device.

Add to Chrome — free Also on Firefox

No account · no servers · no tracking · MIT licensed

TabStyr dashboard showing today's active time, category breakdown, trends and an activity heatmap

0bytes: of browsing data leave your device
90days: of detailed history
11languages: out of the box
100%: local & open by design

What it does

Everything you need to understand your time — nothing you didn't ask for.

Active-time tracking

Per tab and per site, second by second. Background audio is counted separately, so totals never exceed real time at the screen.

Trends & comparison

Day / week / month activity trends, plus this-week-vs-last-week by category.

Focus measure

Your own split of productive and distracting time. You choose which categories count and set your own target.

Activity heatmap

Which hours of which days you actually browse — at a glance.

Auto-categorized

Work, Dev, Social, Media and more — recognized automatically. Re-classify any site with one click.

Encrypted backups

Export your full history as JSON, optionally passphrase-encrypted (AES-256-GCM). Restore on any device.

How it works

From install to insight in three steps

No setup, no account, no config to get right.

Add it to your browser
One click from the Chrome Web Store or Firefox Add-ons. No sign-up. Every permission is explained in the privacy policy, and none of them can read page content.
Browse like you normally do
TabStyr tracks active time in the background — idle-aware, audio-aware, entirely on-device.
Open the dashboard whenever
Trends, heatmap, focus score, and a full breakdown — right there, nothing to sync or wait for.

For freelancers, researchers and remote work

What did I work on today?

TabStyr turns each day's browsing into a short report of the sites you used. Paste it into a standup, a timesheet or your research notes.

Example

Today — you spent 6h 10m across 4 sites.

github.comDev2h 40m
docs.google.comWork1h 55m
scholar.google.comWork1h 05m
youtube.comMedia30m

A daily report, ready to share

Open the dashboard at the end of the day and the list is already there. No timers to start or stop.

Every site you used that day, with its category and active time
Copy it as plain text with one click
Export the day as CSV, or as a PNG report card
Go back to any of the last 90 days

Glance from anywhere

A quiet, premium view of your day

Open the toolbar popup for an instant read; jump to the full dashboard for the detail. Both themes, designed to be glanced at — not studied.

TabStyr Dark popup with today's total and top sites

Your year on the web

Browsing Wrapped

Drop your TabStyr export and get a gorgeous, shareable Browsing Wrapped — your time on the web, computed 100% in your browser.

Create your Wrapped

Your data is processed entirely in your browser.

Privacy, not as a feature — as the foundation

0 bytes of browsing data leave your device.

Your data lives in your browser's own database (IndexedDB). Sessions and daily totals are deleted after 90 days, monthly per-site totals after 60 months. Export, restore, or wipe it any time, all offline.

No servers. Nothing is uploaded. There is no backend to send data to.
No accounts. Install and go. No sign-up, no email, no profile.
No trackers. No analytics, no ads, no third-party scripts.
No page reading. Only tab metadata (URL/title) from standard browser APIs.

Read the full privacy policy →

Questions

Good to know

Yes. The extension makes zero network requests, and its content-security policy even blocks them. Everything is stored locally in your browser. Sessions and daily totals are deleted after 90 days, monthly per-site totals after 60 months. You can export or wipe it all at any time.
Active foreground time per site — the tab you are actually looking at — plus background audio counted separately. It never reads page contents, only the URL/title the browser already exposes to extensions.
No. It is event-driven with a once-a-minute checkpoint, uses an efficient local database, and ships ~130 KB of gzipped JavaScript. No background polling, no remote calls.
Install it from the Chrome Web Store for Chrome, Brave, Opera, Arc and other Chromium browsers, or from Firefox Add-ons for Firefox 115+ (favicons show as letter chips there). Edge has no Edge Add-ons listing yet, but it can install from the Chrome Web Store once you allow extensions from other stores. Safari has no App Store release yet; developers can build it for Safari from the source code.
Free to use and MIT-licensed. No ads, no account, no paid wall on the core experience.
Yes — export a full backup (JSON, optionally passphrase-encrypted with AES-256-GCM) and restore it anywhere.

Feedback & ideas

Built in the open — with you.

No feedback widgets phoning home. Just a simple form with no account and no sign-in. Your message, and your email if you add one, go to the maker through Formspree.

Share an idea or report a bug

Want a feature, a new metric, or hit something broken? Tell me right here — no account needed.

Support the project

TabStyr is free and open source. A small tip keeps it going.

Buy me a coffee

See how it's built

TabStyr is open source (MIT). Read the code, check the privacy claims yourself, or follow new releases.

Know where your browser time goes.

Install in two clicks. Your browsing data never leaves the device. Uninstall removes everything.

Add to Chrome — free

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