Multi-Phase Timer

Build complex workout routines with multiple phases and automatic repetition

🔥 HIIT Workouts

Create interval training timers with work and rest phases

🧘 Breathing Exercises

Box breathing, 4-7-8 method, and custom breathing patterns

📚 Study Sessions

Pomodoro-style timers with custom work and break intervals

Multi-Phase Timer Builder

Multi-Phase Interval Timer - Complex Routines Made Simple

Create sophisticated multi-phase timers perfect for HIIT workouts, circuit training, breathing exercises, or any routine requiring multiple sequential intervals. Build custom sequences with unlimited phases, each with its own duration, name, and voice announcements.

Ideal for personal trainers, athletes, yoga instructors, productivity enthusiasts, and anyone following structured interval-based routines. Presets for popular workouts included, or build your own from scratch.

How to Create Your Multi-Phase Timer

Quick Start

  1. Choose from Popular Presets (HIIT, Tabata, Boxing, Circuit) or start blank
  2. Click Add Phase to create each interval in your routine
  3. Set Duration, Name, and Color for visual identification
  4. Drag and drop phases to reorder your sequence
  5. Set Repeat Count to run the sequence multiple times automatically
  6. Add optional Voice Messages for each phase transition
  7. Hit Start and follow the automated sequence

Phase Customization

  • â–¸Unlimited Phases: Add as many intervals as your routine requires - no artificial limits
  • â–¸Color Coding: Assign colors to phases for instant visual recognition (work = red, rest = green, prepare = yellow)
  • â–¸Voice Announcements: TTS announces phase names hands-free during workouts
  • â–¸Drag & Drop Reorder: Easily adjust sequence order without recreating phases
  • â–¸Phase Duplication: Copy phases to quickly build similar intervals

Automatic Repetition

Set your entire sequence to repeat automatically 2, 3, 5, or more times. Perfect for circuit training where you complete multiple rounds of the same exercises, or breathing exercises requiring several cycles.

The timer shows current round progress and automatically transitions between cycles with optional rest periods between rounds.

Popular Workout Presets

HIIT - High Intensity Interval Training

30 seconds intense work, 10 seconds rest, repeated 8 times. Classic HIIT protocol proven to burn fat and build cardiovascular endurance efficiently.

Tabata Protocol

20 seconds maximum effort, 10 seconds rest, 8 rounds. Scientifically validated for improving both aerobic and anaerobic capacity.

Boxing Rounds

3-minute rounds with 1-minute rest between. Traditional boxing training structure perfect for combat sports or cardio boxing workouts.

Circuit Training

45 seconds work, 15 seconds transition time. Ideal for rotating through multiple exercises in sequence without rest.

Box Breathing

4 seconds inhale, 4 hold, 4 exhale, 4 hold. Calming breathwork used by Navy SEALs and meditation practitioners worldwide.

4-7-8 Breathing

4 seconds inhale, 7 hold, 8 exhale. Dr. Weil's relaxation technique for reducing anxiety and promoting sleep.

Use Cases & Applications

Fitness & Training

  • ✓HIIT Workouts: Alternate high-intensity bursts with recovery periods for maximum calorie burn
  • ✓Circuit Training: Time multiple exercise stations with equal work intervals
  • ✓Strength Training: Time work sets, rest periods, and transitions between exercises
  • ✓Boxing/MMA Training: Traditional round structures with automatic bell signals

Wellness & Mindfulness

  • ✓Breathing Exercises: Box breathing, 4-7-8 method, Wim Hof technique with precise timing
  • ✓Meditation Sessions: Structured meditation with sitting, walking, and transition phases
  • ✓Yoga Flows: Time holding poses, transition periods, and rest phases
  • ✓Stretching Routines: Hold stretches for optimal durations with automatic progression

Productivity & Focus

  • ✓Study Sessions: Custom Pomodoro variations with different work/break ratios
  • ✓Task Batching: Time blocks for different task types (email, deep work, meetings)
  • ✓Creative Projects: Alternate between creation, review, and rest phases

Key Features

Visual Progress Tracking: See current phase, remaining time, and overall progress at a glance. Color-coded phases make it instantly clear what's happening.

Automatic Phase Transitions: No manual intervention needed. Timer automatically moves through all phases and cycles, perfect for workouts where you can't touch your device.

Voice Guidance: Text-to-speech announces phase names and transitions, keeping you focused on the activity without watching the screen.

Save Custom Routines: Create your perfect routine once, save it, and reuse it every time. Build a library of different workouts or breathing exercises.

Fullscreen Mode: Distraction-free display perfect for projecting in gyms, yoga studios, or group training sessions.

Privacy Focused: All routines stored locally in your browser. No accounts, no data collection, complete privacy.

Why Choose This Multi-Phase Timer?

Unlimited Complexity: Unlike simple interval timers limited to two phases, create routines with as many different phases as needed. Perfect for complex circuits and routines.

Intuitive Interface: Drag-and-drop simplicity combined with powerful features. No learning curve - start creating advanced routines immediately.

Completely Free: All features unlocked forever. No premium tiers, no subscriptions, no paywalls. Professional-grade tool at no cost.

Works Everywhere: Browser-based means it works on any device - phone, tablet, laptop. Same powerful features across all platforms.