Free tool

Test any HLS or DASH stream

Paste a manifest URL and hit play. Format detection is automatic — .m3u8 goes through hls.js, .mpd through dash.js, everything runs in your browser and nothing is uploaded anywhere.

Try a sample:

Why streams fail
to play

CORS headers

The server hosting the stream must allow cross-origin requests, or the browser will block playback.

Mixed content

This page is served over HTTPS — http:// stream URLs will be blocked by the browser.

Codec support

Exotic codecs may not play in every browser. H.264/AAC is the safest combination.

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