Interactive Demo — No install required

Your idle tabs are
costing you real money

TabCost Pro turns the invisible cost of distraction into a number you can't ignore. Set your rate — see what your open tabs actually cost per day.

Install free →

Tour walks through all features in ~90 seconds · No signup needed

Live interactive replica · Pixel-identical to the real extension

🔒 app.notion.so/workspace/projects
🪙
📋 Notion — Projects
🐦 Twitter $0.18
📺 YouTube $0.31
🗞 HN $0.09
📦 Amazon $0.22
Notion
Workspace · Projects
Q3 2026 — Active Projects
Last updated: June 2026
ProjectOwnerStatusDue
Landing redesignAlex🟡 In progressJun 20
API v3 migrationSara🔴 BlockedJun 15
TabCost Pro 1.6Alex🟢 On trackJul 1
Docs updateMarc🟡 In progressJun 30
Chrome submissionAlex⚪ PlannedJul 10
🪙 TabCost — Focus Alert
You have lost $2.50 today due to inactive tabs.

Everything in the extension, nothing hidden

The demo above runs the real logic. Here's what you get.

⏱️
Idle tab tracking
Tracks every tab that hasn't been clicked. After a configurable grace period, cost starts accumulating — at your exact hourly rate.
FREE
💸
Opportunity cost display
A single number in the popup: how much your idle tabs have cost you today. Reset any time (Pro). Switches between USD and EUR.
FREE
🗑️
Close all inactive tabs
One button closes every tab that's been idle past the grace period. Instant focus reset. Works without a Pro license.
FREE
📈
365-day history chart
Daily loss history visualised as a bar chart. Exportable to CSV. Spot your worst distraction days at a glance.
PRO
🚫
Domain whitelist
Add your work tools (Notion, Figma, GitHub) so those tabs never count. Only truly idle, non-work tabs accumulate cost.
PRO
🤖
Auto-close idle tabs
Set a threshold (e.g. 30 min) and TabCost closes idle tabs automatically — keeping your browser lean without you lifting a finger.
PRO
🔔
Push notifications
Get a browser notification when your daily cost crosses your threshold (default $2.50). A jolt of context when you need it most.
PRO
🌍
Bilingual — EN / ES
Every string in both English and Spanish. Switch mid-session. Your language preference is saved locally.
FREE
🔒
100% local — zero data sent
There is no TabCost server. All data lives in chrome.storage.local. Nothing leaves your browser, ever.
FREE
★★★★★
"I had no idea YouTube alone was costing me $2.30 a day. Seeing that number made me close it permanently during work hours."
— Marc V., Freelance developer
★★★★★
"The whitelist is the killer feature. My work tools don't count; only the distractions do. Finally a tool that actually knows the difference."
— Laura S., UX consultant, $95/h
★★★★★
"Auto-close after 30 minutes is brutal and I love it. My browser is clean and my clients are billing full hours. Worth every cent."
— Diego P., Remote PM
One-time · Lifetime · No subscription
$19$5

Unlock all Pro features forever. 30-day money-back guarantee, no questions asked.

Free plan: core tracking · Pro: history, whitelist, auto-close, notifications, CSV export