MoQ Inspector — Online Media over QUIC Debugger
Connect to any MoQ relay, watch the stream, inspect every object and publish test streams. Your browser talks straight to the relay.
Help shape MoQ Inspector — Online Media over QUIC Debugger
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Frequently Asked Questions
MoQ is an IETF protocol for live media and data over QUIC. Publishers send objects grouped into tracks under a namespace; relays fan them out to subscribers with very low latency. It aims to replace both WebRTC and HLS-style delivery for live streaming.
Any MoQ relay: Cloudflare's managed relays (moq-transport draft-16 and draft-14), moq.dev and self-hosted moq-rs relays (moq-lite), even a relay on localhost. Choose Auto and it negotiates whatever the relay speaks, then shows you exactly which version it got.
Yes. Where WebTransport is missing or unreliable, it runs MoQ over WebSocket — moq.dev and moq-rs relays support that, publishing included. Cloudflare's relays need WebTransport, so use Chrome, Edge or Firefox 153+ for those, or force it in Options.
Yes. CMAF/fMP4 streams (Cloudflare, moq-rs) play through Media Source Extensions, including iOS, and moq.dev's hang streams through WebCodecs. It even repairs fragments with zero sample durations, a publisher bug it flags for you.
No. Your browser connects straight to the relay. Tokens live only in this tab's memory — never saved, logged, analysed or exported — and payloads stay local unless you export them yourself.
Auto-reconnect retries after 1, 2, 4, 8, 15 and 30 seconds and re-subscribes your tracks. It never retries after a token rejection and never restarts publishing on its own. Every attempt is shown in the timeline.