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.

Try Samples:View All Samples ↗

Active format: HLS

Space K M F

0:00 / 0:00

Debug Panel

Idle

Events logged: 0

Errors: 0

Playback

Autoplay

Muted

Plays Inline

Gather info before playback

Runs a HEAD/GET prefetch to inspect HTTP status & Content-Type before the player starts

Referrer Policy

Send Referrer

Note:Browsers don't allow JavaScript to set custom HTTP headers on video requests. Full header control requires a server-side proxy.

Preload Strategy

Only load duration/dimensions (default)

How VideoLab Works

Three steps to test and debug any video stream

Paste a URL or Upload a File

Drop a link or drag a file right into the player. We'll detect the format and start loading the video.

Watch Diagnostics Update Live

As the video plays, the debug panel tracks the connection status, resolution, bitrate, and network events as they happen.

Share or Export Your Logs

Generate a shareable URL to let someone else see your exact test environment, or download a JSON debug log to review later.

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.