The minimalist timer
for classrooms, streams & study.
Create pixel-perfect classroom timers, study countdowns, and Pomodoros. Customise layouts, toggle Zen mode, and embed instantly into Notion, OBS Studio overlays, Figma, or personal teaching spaces.
Used by developers and students globally. Zero setup, zero signup.
Quick Start Preset Timers
Select a pre-configured timer duration to start immediately. Optimized for study, work, and productivity sessions.
Countdown Timers
Instant interval timers for tasks, study blocks, and cooking.
Stopwatch & Trackers
Track elapsed time with precision millisecond laps and statistics.
Pomodoro Study Blocks
Automated study/break timers structured for focus intervals.
Embed Anywhere
Configure once and paste your timer into any platform. Works everywhere an iframe fits.
Notion
Embed as an inline widget for study dashboards and project pages.
OBS Studio
Transparent overlay for live streams with custom colors and Zen mode.
Obsidian
Embed live countdown timers directly into your markdown notes and personal vaults.
Figma
Embed live timers in design prototypes and presentation decks.
Your Site
Copy the iframe snippet and paste into any HTML page or CMS.
Popular Guides
Step-by-step tutorials for setting up your timer in classrooms, streams, and workspaces.
Classroom Timer Setup
Best practices for using CleanStopwatch with students, exams, and activities.
Read guide →OBS Timer Overlay
Add a transparent countdown to your Twitch or YouTube live stream.
Read guide →Notion Timer Widget
Embed a Pomodoro or countdown timer directly in your Notion workspace.
Read guide →Pomodoro Technique
Optimize study sessions with structured work and break intervals.
Read guide →Aesthetically Engineered
Designed with geometric consistency and flat glass lines to integrate seamlessly into any workflow layout.
Custom Color Presets
Match your exact workspace accent color or select our pre-configured color schemes to blend in.
Drift-Free Precision
Maintains time counts by recording absolute timestamps on render loops, bypassing standard wiggles and intervals delay.
Zero Friction
No account creation, no tracking script logs. Simply customize your parameters, grab the code, and embed.
Frequently Asked Questions
Everything you need to know about setting up and using CleanStopwatch.
How do I embed this timer in Notion?
Can I customize the colors, alarm sound, and modes?
Is this online timer accurate?
Does it work on mobile browsers?
Is CleanStopwatch suitable for classrooms and teachers?
How do I set up this timer as an OBS Studio stream overlay?
Ready to configure your timer?
Create custom stopwatches, count-downs, or Pomodoro study blocks instantly.