⏱️ Precision Stopwatch
Count up with millisecond accuracy. Record lap times, track intervals, and measure any activity. Perfect for sports, cooking, and scientific timing.
⏰ Countdown Timer
Set custom durations from seconds to hours. Ideal for Pomodoro technique, HIIT workouts, cooking timers, and time-boxed study sessions.
🔔 Alarm Clock
Schedule alerts for specific times. Multiple alarm support with customizable sounds. Never miss an important moment or deadline.
📱 Works Everywhere
Fully responsive design works on desktop, tablet, and mobile. Add to your home screen for instant access like a native app.
🌐 Works Offline
Progressive Web App technology means the timer works without internet. Your timing continues accurately even when disconnected.
💯 100% Free
No registration, no downloads, no hidden fees. All features available immediately. Supported by optional donations from satisfied users.
Why Use a Browser-Based Stopwatch?
Physical stopwatches drain batteries and get lost in drawers. Phone timer apps bury you in notifications and upsell screens. A browser-based stopwatch sidesteps both problems: it loads in under a second, runs on any device you already own, and never asks you to create an account or watch an ad before you can press "Start."
We built Pirate Stop Timer because we were tired of bloated timer apps that prioritize engagement metrics over the simple act of measuring time. Every design decision — from the single-tap start to the offline PWA support — is made so the tool stays out of your way. Whether you are timing a 4-minute French press, a 25-minute Pomodoro sprint, or a 90-second rest between deadlift sets, the interface is identical: press start, glance at the display, press stop.
Because the stopwatch runs entirely in your browser using the performance.now() API, your timing data never leaves your device. There is no server to phone home to, no analytics on your lap splits, and no profile to monetize. The timer keeps working even when your Wi-Fi drops mid-workout — the Progressive Web App cache ensures every asset is available offline after your first visit.
Timing Guides & Resources
The Pomodoro Technique: Complete Guide
Master the popular productivity method. Learn optimal work-break ratios, customize intervals for your workflow, and boost focus with timed sessions.
HIIT Workout Timing Strategies
Optimize your high-intensity interval training with interactive interval timer. Discover the best work-to-rest ratios for fat burning, endurance, and muscle building.
Time Management for Remote Workers
Practical strategies for working from home. Learn time blocking, beat procrastination, and maintain work-life balance with effective timing.
Kitchen Timer Mastery
Perfect your cooking with precise timing. From boiling eggs to baking bread, learn the exact times for consistent, delicious results every time.
Interval Training Timer Guide
Complete guide to interval training with interactive timer calculator. Learn Tabata, 30-30, and custom interval protocols for any fitness level.
Meditation Session Timing
Build a consistent meditation practice. Discover optimal session lengths for beginners to advanced practitioners, plus interval meditation techniques.
Effective Study Timing
Maximize learning with science-backed timing. Learn about spaced repetition, optimal study session lengths, and break intervals for better retention.
Yoga Practice Timing
Structure your yoga sessions with proper timing for each pose. Includes breathing exercises and meditation intervals for a complete practice.