Quantify the invisible cost of compute.
CarbonDesk is a precise desktop agent that turns your CPU cycles, cloud calls, and screen time into real-time carbon telemetry — measured against the actual grid powering your laptop right now.
macOS · Windows · Linux — no card required
↓ 18% vs. weekly average
Video calls drove 38% of this week's footprint. Switching to audio-only for recurring stand-ups could save ~0.6 kg CO₂ per week.
last ping 42s ago · 14W avg
From CPU cycles to a number you can move.
No surveys. No estimates. Just the watts your machine actually drew, against the grid that actually fed it.
Install the agent
A 12 MB background process for macOS, Windows, or Linux. No file contents, no keystrokes — just CPU, memory, and active app categories.
Match the grid
Every 60 seconds we convert your watts to grams of CO₂ using live regional grid intensity from 160+ countries.
Act on the insight
Weekly AI audits surface the workflows driving your footprint — and the smallest change that moves it.
Everything you need to make compute count.
Desktop agent
Native tray app. Sips 0.1% CPU. Queues telemetry offline and reconnects on its own.
Regional grid data
Real-time carbon intensity from Climatiq, cached daily, with hardcoded fallback so numbers never blank out.
AI insights
gpt-4o-mini reads your week and returns a summary, biggest leak, daily goal, and three weighted tips.
Achievements
Ten unlocks from Getting Started to Planet Protector. Streaks, milestones, and 100 kg saved.
Team leaderboards
Opt-in, anonymous, and ranked by reduction — not raw usage. Built so the smallest laptop can win.
ESG-ready reports
Export PDF or CSV for Scope 2 reporting. Teams plan ships a centralized dashboard for up to 10 members.
Your work stays yours.
The agent reads process names and CPU usage. It does not read file contents, browser history, clipboard, or keystrokes. Leaderboards are opt-in and anonymous. Delete your account and everything cascades within 30 days.
Fair for any footprint.
Start free. Upgrade when the numbers start moving.
For curious self-trackers.
- 1 device
- 3 calculations / day
- 3 AI insights / day
- 30-day history
For people who want the full picture.
- Unlimited devices
- Unlimited AI insights
- PDF & CSV export
- Priority support
For organizations reporting Scope 2.
- Everything in Pro
- Up to 10 members
- Team dashboard
- ESG reporting API
Start measuring what you've been ignoring.
Sixty seconds to install. A week of data before the first AI audit lands in your inbox.