flint: free live streaming software in your browser, an OBS alternative for Twitch

Go live on Twitch straight from a browser tab, like OBS with nothing to install and no account. Build scenes from your camera, your screen, a phone, pictures, video, text and Twitch chat, mix your sound, and stream.

What it does

• Scenes and sources: cameras, screen, window and tab capture, images, video, text, slideshows, phone cameras, web overlays and guests (a co-host's camera from a link).
• An audio mixer with filters, monitoring and per-source sync.
• Green screen, background removal, colour correction, LUTs, masks and transitions (fade, slide, stingers, move).
• Streaming to Twitch, or any WHIP server, over WebRTC; recording, a replay buffer and clips with vertical versions for Shorts and TikTok.
• Twitch alerts, goals, Hype Trains, chat on screen, a chat dock with moderation, end credits and a countdown.
• Controls for keys, MIDI and Stream Deck, automation, studio mode, a vertical canvas, and a phone remote.
• Your setup is backed up encrypted, so any computer can pick up where you left off; ready-made setups to start from.

Works best in Chrome or Edge; Firefox and Safari can stream your camera and mic too.

More: a free OBS alternative, streaming to Twitch from your browser, online streaming software, streaming from a Chromebook, guests from a link, Twitch alerts and overlays, WHIP and WebRTC, DJ streams, VTubing with a webcam.

Guides: your first stream, going live on Twitch, scenes and sources, sound, alerts, guests and more. Go live from your phone. flint in 45 seconds.