Calculators · United States
Free online reaction time test that measures your reflex speed in milliseconds
Ahrefs Domain Rating set in type 2 Nov 2026, reset 29 Oct 2026.
VoltReflex is a free browser-based tool that measures your visual reaction time in milliseconds, compares your score with gamers and athletes, and requires no
VoltReflex is a free, browser-based reaction time testing tool designed to measure your visual reflex speed in milliseconds with no account, software download, or fee. The test is simple: when the screen turns green, click or tap as fast as you can, and the tool records your time using high-resolution browser performance timing. You can run sessions of 5, 10, or 20 rounds to get a statistically reliable average, and see your percentile ranking compared to human benchmarks across age groups, professions, and skill levels. Results can be shared on Facebook, X (Twitter), or Discord. The tool runs entirely in your browser, with no personal data collected or stored on servers, and works on mobile, tablet, laptop, or desktop devices. VoltReflex is built for gamers tracking training improvements, athletes monitoring reflex speed, students and researchers studying cognitive performance, and anyone curious about how their reflexes compare to the average person.
Pricing model: Free
| Metric | Value |
|---|---|
| Domain Rating | 0 no change since last check |
| Trust Flow | 0 no change since last check |
| Citation Flow | 12 no change since last check |
| Referring domains | 3 no change since last check |
| External backlinks | 4 no change since last check |
Ahrefs Domain Rating set in type 2 Nov 2026, reset 29 Oct 2026. Majestic set 29 Oct 2026, reset 29 Oct 2026. Link data typeset by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
| Domain age | 4 months |
|---|---|
| Registered | |
| Expires | |
| Registrar | NameCheap, Inc. |
| DNSSEC | Not signed |
Measured after VoltReflex went live on Zivaro Launch on 29 October 2026.
Day 4 since launch. Next receipt: day 30, 28 Nov 2026. These are measurements, not proof of cause: many things move these numbers. Figures we have not measured are left out.
Under 200 ms is considered excellent and puts you in roughly the top 10%. Under 150 ms is exceptional. The average healthy adult scores between 200–250 ms. Anything above 350 ms may indicate fatigue, distraction, or simply that your reflexes haven't been trained recently.
Yes, VoltReflex is fully responsive and works on any device with a modern browser. On touchscreens, tap the box instead of clicking. Touchscreens add approximately 10–20 ms of additional input latency compared to a wired mouse, so mobile scores may appear slightly slower for the same person.
No, VoltReflex does not save scores. Your reaction time scores exist only in your browser's memory during your session and are not transmitted to or stored on the servers. When you refresh the page or close the tab, your results are cleared. VoltReflex does not track individual user scores.
Approximately 200–250 ms for a visual stimulus. Auditory reactions are slightly faster at 150–170 ms.
VoltReflex uses performance.now() for sub-millisecond timer precision. The main variance is your monitor's refresh rate — up to ±16 ms at 60 Hz.
No review of VoltReflex set in type yet. Set the first.
Reviews are free to set. None are paid for. Read the proofs
Readers' notes · Reprints · Share the page · Your company in print? Claim it · Report a misprint
VoltReflex has a free listing. The owner can unlock the full profile with a paid launch for $5:
Disk PricesCompare HDD and SSD prices with full specifications and price per terabyte in the US
OhmlarkElectronics calculators for makers
EZGraderFree grading calculator and printable chart for teachers
Speedometer.toolsFree online GPS speedometer for your phone