Test Any Video Stream Instantly
Play MP4, HLS, DASH, YouTube, Vimeo & embeds. Debug playback errors and streaming issues in real time. The WebPageTest for video.
Debug Panel
Events logged: 0
Errors: 0
Everything You Need to Test & Debug Video
Auto Format Detection
Paste any URL — VideoLab automatically detects MP4, HLS, DASH, YouTube, and Vimeo.
Live Debug Panel
Real-time event log with connection status, bitrate, codec, and error detection.
Shareable Test URLs
Generate a link that restores the exact test — source, settings, and referrer.
Upload Local Files
Drag & drop any local video file. Plays in-browser with full diagnostics.
HLS & DASH Support
Powered by hls.js and dash.js for adaptive bitrate stream testing.
Export Debug Logs
Download a structured JSON file with the full playback timeline and errors.
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.