👋 Who We Are

Built for Display
Enthusiasts & Developers

Refresh Rate Tester is a free, privacy-first suite of browser-based tools for diagnosing monitors, peripherals, and hardware — with no installs, no logins, and no tracking.

19+
Free Tools
100%
Browser-Based
0
Data Collected
60Hz+
Detection Accuracy

Our Mission

We started Refresh Rate Tester with a simple belief: every user deserves fast, accurate, free access to hardware diagnostics — without needing to install software, create accounts, or hand over their data.

Whether you're a competitive gamer trying to verify your 240Hz panel, a developer testing peripherals, or a casual user wondering why your screen feels sluggish — our tools give you instant, reliable answers using only web standards like requestAnimationFrame and the Web Audio API.

Everything runs entirely in your browser. No data leaves your device. No telemetry. No ads injected into tool logic. Just clean, fast, open diagnostics for everyone.

Our Tools Suite

Refresh Rate Tester FPS Calculator CPS Test Motion Blur Test Screen Bleeding Mouse Test Keyboard Test Mouse Rate Test Microphone Test Dead Pixel Test Webcam Test FPS Test Sound Test Packet Loss Test Ping Test Controller Test Headphone Test Touchpad Test Vibration Test Scroll Test

Meet the Team

Kalyan Sawant
Kalyan Sawant
Hardware Performance Specialist

A display technology aficionado with over a decade calibrating monitors and benchmarking GPUs. Kalyan leads tool accuracy and hardware research at Refresh Rate Tester.

VS
Vaijanath Savant
Founder & Lead Developer

Full-stack web developer passionate about building fast, privacy-respecting tools. Vaijanath architected the entire Refresh Rate Tester platform from the ground up.

CM
Community
Testers & Contributors

Hundreds of users across Reddit, Discord, and GitHub have contributed feedback, bug reports, and feature ideas that shape every update to our toolset.

Our Values

🔒

Privacy First

All processing happens locally in your browser. We don't log keystrokes, mouse data, microphone input, or any hardware info.

⚡

Speed & Accuracy

Our refresh rate detection uses frame-perfect requestAnimationFrame timing to deliver ±1Hz accuracy across all modern browsers.

🎁

Always Free

Every tool on this site is completely free with no paywalls, no email signups, and no premium tiers. Hardware diagnostics should be accessible to all.

🌐

Works Everywhere

Built with pure HTML, CSS, and JavaScript — our tools work on any modern browser, OS, or device including mobile, tablet, and desktop.

How We Build

HTML5

Semantic, SEO-optimized markup

Vanilla CSS

Custom design system, dark mode

Vanilla JS

Zero frameworks, zero bloat

Web APIs

rAF, Web Audio, WebRTC, Gamepad

No Backend

Static files, no server needed

Instant Load

No bundles, sub-100ms init

Have Feedback or a Suggestion?

We're always improving. If you found a bug, have a tool idea, or just want to say hi — we'd love to hear from you.

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