Webcam Lag & Delay Test
Comprehensive camera performance analysis
π¬ Video Recording
Live Camera Feed
Latency Metrics
π Performance Analysis
π₯ Camera Quality Tools
βοΈ Technical Specifications
βΉοΈ How It Works
This tool flashes a colored circle on your webcam feed and measures how long it takes for your camera to capture and display that flash. Lower latency means less lag between real-world action and what you see on screen. Click "Start Test" to begin measuring your webcam's response time and overall performance.
π About This App
What is Webcam Lag Test?
Webcam Lag Test is a comprehensive diagnostic tool designed to measure and analyze your camera's performance in real-time. Whether you're a content creator, streamer, video conferencer, or just curious about your webcam's capabilities, this app provides detailed insights into your camera's latency, quality, and overall performance metrics.
How Does It Work?
The app uses advanced computer vision techniques to analyze your webcam feed:
Latency Measurement
The app flashes a bright circle overlay on your video feed and measures the time it takes for your camera to detect this change. This reveals the true end-to-end latency of your camera system.
Frame Analysis
Every frame is analyzed using pixel-level calculations to measure sharpness (edge detection), noise levels (variance analysis), color saturation, contrast ratios, and brightness distribution.
Performance Tracking
Real-time monitoring tracks frame rate stability, dropped frames, jitter (variance in latency), and overall stream quality to give you a complete picture of your camera's performance.
High-Quality Recording
The recording feature captures your webcam feed using the VP9 codec with selectable quality levels from 4K Ultra HD down to SD, allowing you to save and analyze your camera's output.
Why Measure Webcam Lag?
Webcam latency matters more than you might think:
- β’ Video Conferencing: High latency can cause awkward pauses and miscommunication in meetings
- β’ Live Streaming: Streamers need low latency for real-time interaction with their audience
- β’ Content Creation: Understanding your camera's quality helps optimize recording settings
- β’ Gaming & Motion Capture: Low latency is crucial for reactive gameplay and accurate motion tracking
β¨ Complete Feature List
πΉ Latency Testing Features
- β Real-time lag measurement in milliseconds
- β Current, average, minimum, and maximum lag tracking
- β Live lag badge overlay on video feed
- β Color-coded lag indicators (green=excellent, red=poor)
- β Lag grade system (A+ to D rating)
- β Sample count with progress tracking
- β Flash indicator for visual lag detection
π Performance Analysis
- β Jitter measurement (latency variance)
- β Stability score calculation (0-100%)
- β Dropped frames detection and counting
- β Stream quality assessment (Excellent/Good/Fair/Poor)
- β Real-time frame rate monitoring
- β 10-sample rolling average for FPS
π₯ Camera Quality Analysis
- β Sharpness score (0-100 edge detection)
- β Noise level analysis (variance calculation)
- β Color saturation measurement
- β Contrast ratio calculation
- β Overall quality rating with color-coded badges
- β Brightness percentage tracking
πΉ Camera Information Display
- β Live resolution display (width Γ height)
- β Frame rate monitoring (FPS)
- β Brightness level percentage
- οΏ½οΏ½οΏ½ Color depth display (24-bit)
- β Aspect ratio calculation
- β Focus mode, exposure, and white balance info
π¬ Video Recording Features
- β Multiple quality levels (4K, 1080p, 720p, 480p)
- β VP9/WebM codec with optimized bitrates
- β Real-time recording timer (MM:SS format)
- β Live file size tracking during recording
- β Recording status indicator with pulsing animation
- β Audio + video recording support
- β Quality selection with detailed specs (resolution, FPS, file size)
πΌ Recorded Videos Management
- β Video library with all recordings
- β Detailed metadata (quality, duration, size, timestamp)
- β One-click download to your device (.webm format)
- β Delete unwanted recordings
- β Quality badges (4K/1080p/720p/480p labels)
- β Duration display (MM:SS format)
- β File size in megabytes (MB)
π Camera Zoom Controls
- β Digital zoom slider (1x to 5x)
- β Real-time zoom value display
- β One-click zoom reset button
- β Smooth zoom transitions
- β Zoom level saved in snapshots
πΈ Snapshot Capture Features
- β Instant snapshot capture button
- β High-resolution PNG image export
- β Snapshot gallery with thumbnails
- β Metadata tracking (timestamp, resolution, zoom)
- β Download snapshots as PNG files
- β Delete individual snapshots
- β File size estimation for each snapshot
- β Success/error feedback messages
π― Total Features: 65+
This comprehensive webcam testing tool provides everything you need to analyze, test, record, zoom, and capture your camera's performance with professional-grade metrics and analysis.