Available now SELFLEX v1.4.5 · App Store, Chrome Web Store & Firefox Add-ons
See where your time
on the web actually goes.
SELFLEX is a privacy-first new tab extension that turns browsing activity into clear, useful insights—entirely on your device.
✓ No account✓ Local-first storage✓ No ads or tracking
TODAY · 10:42
Your digital rhythm.
youtube.com38m
github.com27m
instagram.com18m
100%local data processing
0remote user databases
3supported browsers
v1.4.5store version
AVAILABLE NOW
Get SELFLEX for your platform.
The Safari, Chrome, and Firefox editions are now available. Download SELFLEX without creating an account and start seeing your digital rhythm locally.
iPhone · iPad · macOS
Open App Store ↗App Store
Explore your Safari rhythm with a local app dashboard, device-aware Light/Dark themes, and iPhone/iPad Home Screen widgets.
Chrome
Add to Chrome ↗Chrome Web Store
Bring the SELFLEX new-tab experience to Chrome.
Firefox
Add to Firefox ↗Firefox Add-ons
Bring the SELFLEX new-tab experience to Firefox.
Android
Learn more about Android →Firefox for Android
On Android, SELFLEX runs in Firefox, the browser that supports extensions there. There is no separate Android app.
SELFLEX v1.4.5 availableNo accountLocal data processingNo ads or tracking
PRODUCTLess guessing.
Less guessing.
A clearer digital day.
SELFLEX does not tell you to spend less time online. It gives you reliable information so you can make that decision for yourself.
Time by site
See which websites take the largest share of your day.
Hourly rhythm
Understand when your activity rises and when focus drifts.
Custom categories
Organize websites around your own work and life.
Detailed search
Filter local history by site, date, category, and duration.
Privacy controls
Exclude sites, remove one domain, or permanently redact details.
Local backup
Export and restore your data as a local JSON file.
WHY SELFLEX?Because estimated time
Because estimated time
is rarely actual time.
A few visits that felt brief can quietly add up to hours. SELFLEX makes those invisible patterns measurable without judging them.
Phones have Screen Time. SELFLEX brings the same awareness to desktop browsing—without sending your history to the cloud.
THE CORE IDEABROWSER HISTORYWhich pages did you open?
→A chronological list of addresses.
SELFLEXHow did you use your time?
Duration, categories, and behavioral patterns.
COMPARISONSeeing history is one thing.
Seeing history is one thing.
Understanding your rhythm is another.
SELFLEX goes beyond a list of visits by putting website time into hourly, weekly, and category-level context.
Capability
SELFLEXBrowser history
Built-in screen time
Active time by website
✓ Detailed
— Not shown
~ Platform-limited
Hourly and weekly rhythm
✓ Included
— Not available
~ General overview
Custom website categories
✓ Editable
— Not available
— Not available
Delete one domain's data
✓ One action
~ Visit records only
~ Platform-dependent
Account requirement
✓ No account
✓ Usually none
~ Uses a device account
This comparison reflects the SELFLEX v1.4.5 store release and common browser and operating-system capabilities. Built-in features may vary by platform.
PRIVACY ARCHITECTURENo middleman.
No middleman.
No cloud by default.
Your browsing records are processed inside the browser and stored in extension-local storage. They leave the device only if you turn on SELFLEX Sync, and then only into your own iCloud account.
01Browser activityURL, title, time
→02Local analysisInside your browser
→03SELFLEX dashboardVisible only to you
● No SELFLEX analytics or remote user database
BROWSER SCREEN-TIME GUIDE
Measure website time accurately in Safari and Chrome.
Browser history shows which pages you opened, not how long they were actually visible. Learn how active-tab sessions, hourly patterns, categories, and local processing create a more useful picture.
Read the browser screen-time guide →Safari browsing timeChrome website screen timeBrowser history vs. active timeLocal-first privacy
FREQUENTLY ASKED QUESTIONS
Common questions.
How SELFLEX measures time, where your data lives, and which devices it runs on.
What is SELFLEX and what does it do?
SELFLEX is a website time tracker for Safari, Chrome, and Firefox. It shows how long you spend on each site, which hours of the day are busiest, and your weekly rhythm. All measurement and analysis happen on your device.
How can I see how much time I spend on each website?
After adding SELFLEX to your browser, the new-tab dashboard starts collecting per-site durations, an hourly intensity chart, and your weekly rhythm automatically. There is no separate setup or sign-up step.
Is browser history the same as screen time?
No. Browser history only lists the addresses you opened. Screen-time analysis measures how long a tab was actually active and visible, so leaving a tab open in the background does not count as time in SELFLEX.
Is my browsing data sent to the cloud?
No. SELFLEX has no remote user database, advertising network, or analytics server. Records stay in the browser's extension-only local storage. The full list of requested permissions and their purpose is documented in the Transparency Center. The one exception is SELFLEX Sync, which you turn on yourself: the data groups you select are then written end-to-end encrypted into your own iCloud account, never to a SELFLEX server.
Is SELFLEX free, and do I need an account?
SELFLEX is free and never asks for a SELFLEX account. Installing the extension is all you need to do.
Which browsers and devices are supported?
Safari on macOS, iOS, and iPadOS through the App Store, plus Google Chrome and Mozilla Firefox through their own stores. macOS and iPadOS also include home-screen widgets that show your daily time.
Can I delete or back up my data?
Yes. You can erase a single domain's data in one action and export all your records to a local JSON file. You can also exclude specific sites up front and enable privacy and censor modes.
SELFLEX v1.4.5 · AVAILABLE NOWStart seeing
Start seeing
your digital rhythm today.
Free. No account. Stored on your device.