A non-intrusive 4-phase timer for system design interviews.
Users
3
0 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#302K
#246K among extensions
Version
1.0
updated 13 Jan 2026
Users
monthly, 9 months
Latest, 17 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 9 months
Latest, 17 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About System Design Interview Pacer
Master your System Design Interview timing with this non-intrusive, automated pacer.
Why use this?
The biggest challenge in 45-minute system design interviews is time management. Candidates often spend too long on requirements or rush the deep dive. This extension solves that by breaking the 45 minutes into the standard 4-phase structure recommended by top engineering leaders.
Features:
4-Phase Structure:
1. Requirements & Scope (5 min): Define functional/non-functional requirements.
2. High-Level Design (10 min): Diagram core components and API.
3. Deep Dive (25 min): Scale, bottlenecks, trade-offs (longest section).
4. Wrap-up (5 min): Summary and Q&A.
Smart Transitions: Automatically moves to the next phase when time runs out.
Non-Intrusive Overlay: A semi-transparent glassmorphism widget that floats over your drawing board (Excalidraw, Miro, Lucidchart).
Visual Alerts: Gentle yellow glow at 2 minutes remaining, red pulse when time is up.
Draggable: Move it anywhere on screen to keep your workspace clear.
Privacy:
100% Client-side. No data is collected or sent to any server.
Storage" permission is used only to save your timer state if you refresh the page.