SpeedPulse - Internet Speed Tester

Accurate, real-time internet speed test for download, upload, ping, and jitter with live visualizer.

SpeedPulse is a fast, accurate, and lightweight browser extension for measuring your real-time internet download speed, upload speed, latency (ping), and jitter. Built with edge-server Anycast technology and TCP warmup filtering, SpeedPulse provides realistic, unthrottled bandwidth readings without heavy ads, tracking scripts, or page clutter. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🚀 KEY FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ ACCURATE MULTI-STREAM MEASUREMENT • Download Speed: Progressive multi-stream downloading using global Anycast edge nodes. • Upload Speed: Chunk-buffered binary payload testing to measure true upstream bandwidth. • Ping & Jitter: Statistical round-trip time (RTT) probes with outlier rejection to give true network latency. • TCP Slow-Start Warmup Filtering: Discards initial connection ramp-up so you get your true saturated broadband capacity. 📊 COMPREHENSIVE PERFORMANCE BREAKDOWN • Streaming Suitability: Instantly see if your network can handle 4K UHD or 8K streams. • Gaming & Video Calls: Real-time latency evaluation for Zoom, Discord, and competitive gaming. • 1 GB Download Estimate: Real-time calculated ETA for downloading a 1 GB file. • Connection Grading: Automatic connection quality badge (Excellent, Fast, Good, Moderate). 🌓 MODERN, ADAPTIVE THEMES • Seamless Dark and Light theme toggle with 1 click. • Minimalist, high-contrast speedometer gauge that automatically repaints to match your theme. • Live waveform sparkline chart showing bandwidth stability during active tests. 🕒 TEST HISTORY & DATA EXPORT • Automatically logs past tests locally on your machine. • View running averages, peak speeds, and test counts over time. • Export your full test history as CSV or JSON with a single click. ⚙️ CUSTOMIZABLE SETTINGS • Switch speed units: Mbps (Megabits/s), MB/s (Megabytes/s), or Kbps (Kilobits/s). • Adjustable test duration: Quick (5s), Standard (9s), or Thorough (15s). • Configurable stream concurrency: 2, 4, or 6 parallel connections. 🔒 PRIVACY-FIRST & LIGHTWEIGHT • Zero advertisements, zero third-party trackers, and no background resource drain. • Runs entirely on-demand only when you click the extension. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ HOW TO USE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1. Click the SpeedPulse icon in your browser toolbar. 2. Click "Start Test". 3. View real-time speeds, followed by your finish breakdown and performance matrix.