Video Playback Test – Check Any Video in Your Browser
Run a comprehensive playback test on any video URL. VideoLab measures startup time, tracks buffering events, detects codec support, and logs every network event — giving you a complete picture of playback health.
Debug Panel
Events logged: 0
Errors: 0
How VideoLab Works
Three steps to test and debug any video stream
Paste a URL or Upload a File
Enter any MP4, M3U8, MPD, YouTube, or Vimeo URL — or drag & drop a local video file directly into the player.
Hit Play & Watch Diagnostics Update Live
The player starts streaming instantly. The debug panel tracks connection status, resolution, bitrate, codec, and every network event in real time.
Share or Export Your Debug Log
Generate a shareable URL to reproduce the exact test, or export a full JSON debug log with timestamps, errors, and stream info.
What a Playback Test Measures
A video playback test goes beyond just 'does it play'. It measures startup latency, buffering frequency, segment download times, adaptive quality behavior, and error recovery. VideoLab logs all of these in real time.