Online Workout Timer

It is a free web-based interval timer built by one person, Hugo Dufour, that opens in a browser tab and counts down work and rest intervals. The site offers ready-made presets for formats like HIIT, Tabata, EMOM, AMRAP, circuit training, CrossFit, boxing, and MMA, as well as sport-specific timers for combat sports and general fitness. Users can also build a custom workout timer by setting their own work intervals, rest periods, rounds, sets, prep time, and cool-down time.

The timer is designed for anyone training with interval methods, from high-intensity interval training to combat sports like Brazilian Jiu-Jitsu and Muay Thai. It suits users who need a lightweight, offline-first tool that runs in a browser without requiring an account or app installation. The site explicitly states there is no paid tier, no sign-up, and no rotating cast of contributors, making it accessible for all skill levels.

All timers on the site are completely free with no hidden costs, trials, or paid versions to unlock. The business states there is nothing to ask about pricing because every preset and custom build is available without charge. Users can access the full functionality immediately upon opening the page without any subscription.

The interface includes built-in audio cues to ensure users never miss a transition, such as three short beeps in the last three seconds of any phase and a rising double tone when work starts. It also changes color at every transition and announces the current round to keep the user informed during intense sessions. The striking-sport timers add two knocks ten seconds before a round ends to signal the final countdown.

The timer is capable of keeping the screen awake while a session runs, though this depends on browser permissions and battery-saving modes. If the browser pauses the page, the timer will resume from the correct phase once the user returns, calculating where they left off based on the clock. This ensures the countdown remains accurate even if the device is briefly hidden.

Users can adjust settings like work duration, rest duration, and number of rounds while the timer is running, which keeps the current round active. However, using the reset function will send the user back to the start of the session. The site also allows users to compare different timers side by side before committing to a specific format.

The site includes detailed training guides that explain concepts like work-to-rest ratios, the original Tabata protocol, and combat sport round lengths. These guides clarify why the relationship between work and rest decides what a session trains and how to progress without changing everything at once. They also address common misconceptions about what gyms call Tabata versus the 1996 study it is named after.

The business is operated by Hugo Dufour, an independent web developer based in France who publishes the site as a registered sole trader. The registration details, hosting provider, and formal publication notice are available on the legal notice page. There is no editorial team or rotating cast of anonymous contributors behind the content.

Users can reach the business by sending a direct email to [email protected], as there is no contact form on the site. The team promises to reply within 2 to 3 business days in either English or French. Once the exchange is closed, the message and the user's address are deleted from the mailbox.

The timer uses Google Analytics and Microsoft Clarity to measure usage, and it carries Google advertising. In Europe, neither service sets a cookie unless the user consents, and the privacy policy outlines how to refuse them. The site also explicitly states it keeps no visitor data of its own beyond these analytics tools.

The timer is designed to work across various devices, but mobile browsers may require a user interaction before sound plays, so pressing Start once is necessary. If the sound still stays silent, users are advised to check their device's silent mode and report the issue with their phone model and browser. The site also notes that not every browser or battery-saving mode allows the screen to stay awake.

The site offers a gym rest timer specifically for lifting, where only the rest between sets needs a clock. It also provides sport-specific timers for wrestling, Judo, Karate, BJJ, Taekwondo, kickboxing, and Muay Thai. Each of these pages opens with the values that format actually uses, so users do not have to set six numbers before starting.

The timer does not store anything that identifies a user, as there is no account system. The only data recorded is usage metrics via analytics and advertising cookies, which can be refused. The site measures how it is used but does not maintain a list of visitor addresses or build a database of user information.

On Trustburn, Online Workout Timer has a rating of 3.8 out of 5 based on 4 reviews.