Free Online Workout Timer — Tabata, EMOM, AMRAP | No Download | RBTF

What Is a Workout Timer?

A workout timer is an online interval training tool that tracks work and rest periods for high-intensity workouts. Unlike a regular stopwatch, it automatically transitions between phases with audio cues so you can focus on your exercise without watching the clock. This free online workout timer runs directly in your browser — no download, no sign-up, no installation required.

How to Use the Tabata Timer

Tabata is a 4-minute high-intensity protocol: 20 seconds of all-out work followed by 10 seconds of rest, repeated 8 times. To use this Tabata timer:

• Select “Tabata” from the mode list
• Adjust rounds (default: 8), work duration (20s), and rest (10s) if needed
• Optionally enable warm-up and cool-down
• Press Start — the boxing bell rings to signal each work interval

How to Use the EMOM Timer

EMOM stands for “Every Minute On the Minute.” At the start of each minute, you complete a set number of reps, then rest for whatever time is remaining. The faster you finish, the more rest you earn. This EMOM timer automatically calculates your rest period based on the work duration you set — work and rest always total 60 seconds.

How to Use the AMRAP Timer

AMRAP means “As Many Rounds As Possible.” Set a time limit and complete as many rounds of your exercise circuit as you can before time runs out. Your score is the total rounds completed. This AMRAP timer counts down from your chosen duration and tracks each round automatically.

How to Use the Custom Timer

The Custom mode lets you build any interval workout. Set your own work duration, rest duration, number of rounds, warm-up, cool-down, and even multiple sets with rest between them. Save your favorite configurations as templates for quick access later.

Benefits of Interval Training

• Improves cardiovascular health — alternation between high and low intensity strengthens heart function WHO
• Burns more calories in less time — HIIT sessions can burn 25-30% more calories than steady-state exercise NIH
• Boosts metabolism — afterburn effect (EPOC) keeps burning calories post-workout CDC
• Requires no equipment — bodyweight exercises work with any timer protocol
• Fits any schedule — Tabata takes just 4 minutes; EMOM and AMRAP scale from 5 to 30 minutes

Related Guides

• What to Eat Before a Morning Workout — pre-workout nutrition tips
• 10-Minute Morning Workout for Beginners — quick no-equipment routine
• The 2-Minute Morning Habit — build a fitness streak
• 7 High-Energy Breakfasts Under $3 — fuel your workouts