Guides: streaming from your browser with flint
Start here
- What flint is: A streaming studio in a browser tab, like OBS: nothing to install, no account.
- The setup wizard: Answer a few questions and flint builds your scenes, checks your camera and picks good settings.
- Find your way around: The stage, the five panels along the bottom, and the top bar.
- Your first stream, step by step: From an empty page to live on Twitch in about five minutes.
- Template gallery: ready-made scenes: Starting soon, live, be right back and stream ending scenes in a look you choose.
- Which browser to use: Chrome or Edge on a computer does everything; others do the basics.
- Words used in streaming: Scene, source, bitrate, studio mode, chroma key… in plain words.
- Share your setup, and the setup gallery: Send someone your whole setup, or publish it for anyone; use other people's.
- What flint knows about you: Your video never reaches us. What little flint sends, and how to turn it off.
- Feedback: bugs, ideas and questions: Tell us what's wrong or what you'd like, and read our answers in flint.
Scenes & sources
- Scenes: Different screens for different moments, like 'Starting soon' or 'Gaming'.
- Sources: what you can show: Camera, screen, images, videos, text, colour, chat, web overlays, phone camera, shaders…
- Add a camera, step by step: Pick your camera, where it goes, and blur or remove your background.
- Share a game or your screen, step by step: What to pick in the browser's picker, and how to get the game's sound.
- Add a capture card (console streaming): A console or second computer through an Elgato or other capture card: picture and sound.
- Coloured words and scrolling text: Give single words their own colour, and make text scroll like a news ticker.
- Moving, resizing and cropping: Drag on the stage; Alt to crop; right-click for fit, centre, flip and rotate.
- Coming from OBS: import your scenes: Bring an OBS Studio scene collection into flint: scenes, sources, filters and layout.
- Scene collections and profiles: Separate sets of scenes (one per show or game), and separate stream settings.
- Something on every scene (downstream keyer): A logo, a webcam frame or alerts that stay put while you switch scenes.
- Groups: Move, resize and hide several sources together.
- A vertical canvas (TikTok, Shorts, Reels): A second, upright picture with its own scenes, using the same sources.
- Places: your cameras and mics on any computer: Set up your devices once per place; flint finds them again by name.
- Countdown clock: “Starting in 4:59”: a text that counts down to a time or for a few minutes.
- End credits: Roll everyone who chatted, followed, subbed, cheered or raided, like film credits.
- Show the song you're playing: A text source that shows the current track, via Last.fm.
- Web overlays: alerts and widgets: Show a StreamElements or Streamlabs alert box, goal bar or chat widget.
- Use your phone as a camera: Scan a QR code and your phone's camera (and mic) appears in flint, over Wi-Fi.
- Live captions: What you say, as text on screen, worked out in your browser (nothing you say leaves your computer).
- Show a Twitch goal (followers, subs, bits): "3 / 10 followers" with a bar that fills as it goes, straight from your Twitch goals.
- VTuber: a character that moves like you: A fox, cat, robot or your own pictures, moving with your face from your webcam. No other app needed.
- Talking avatar (PNGtuber): A picture of you that talks, bounces and blinks with your voice, instead of a camera.
- Lower thirds: names and titles: Animated name cards ("Sam · co-host", "Follow for more") shown with one click.
- Bring on a guest (a co-host's camera): Send a link: their camera and mic join your stream, and they hear it back without their own voice.
- Chat games: marble race, battle royale, boss fight: Games your chat plays on stream: everyone who types !play is in.
- Stream widgets: Event list, stream labels, emote wall, timers, spin wheel, giveaway, chat highlight, socials, hype cup, QR code.
Sound
- Add a microphone, step by step: Pick your mic, check its level, and set it up for voice or music.
- Jukebox and song requests: Play your own music, with chat requests (!sr) and a now-playing card.
- The audio mixer: Volume, mute, meters, and hearing a source in your headphones.
- Audio filters: cleaner sound: Noise gate, compressor, EQ, gain and limiter, plus balance, mono and lip sync.
- Audio visualiser: Bars, a waveform or a ring that move with your sound.
- DJ visuals: Music-reactive shaders that take turns on the beat.
- MilkDrop visuals: The classic MilkDrop music visualiser, with hundreds of presets.
Controls & automation
- Control panels: your phone, your mods, a co-host: Links (QR codes) to big-button panels on a phone, each allowed only what you choose.
- Channel point rewards: Rewards your viewers spend points on that make things happen on stream, and a queue to complete them.
- Controls: hotkeys, buttons and triggers: Make a key, Stream Deck button, MIDI pad, chat command or Twitch event do things.
- Alerts for follows, subs and more: Show a message (and play a sound) when someone follows, subs, cheers or raids.
- Automation: switch scenes by themselves: Timers, sound levels, scene changes and going live as triggers, with conditions.
- Keyboard shortcuts: The keys flint knows, and how to add your own.
- Stream Deck: Plug in an Elgato Stream Deck and use it straight from the browser.
- MIDI controllers: Pads, faders and knobs as controls; send MIDI to other apps.
- Webhooks, Streamer.bot and OBS tools: Let other apps and services control flint, or tell them what's happening.
Going live
- How your stream went: A report when each stream ends: viewers, followers, subs, bits, raids, chat and the connection.
- Go live from your phone (no computer): Stream to Twitch from your phone's browser: camera, mic, chat on the picture and a Be right back card.
- Raids, ads and markers: Raid a channel when you finish, run or snooze ads, and mark moments to find later.
- Twitch polls and predictions: Ask your viewers, or let them bet channel points, and show the results on stream.
- Activity feed and stats: Follows, subs, gifts, cheers, raids, shoutouts and redemptions as they happen, and your channel's numbers.
- Your chat beside the stage: Read and answer Twitch chat while you're live, and delete messages, time out or ban.
- Connect Twitch: Sign in with Twitch, or paste your stream key.
- Going live and ending: The Go live button, title and category, and what to keep open.
- Test without going live: Stream to a viewer tab on your own computer, exactly as Twitch would receive it.
- Video size, frame rate and bitrate: What 720p, 1080p, 30/60 fps and kbps mean, and what to pick.
- Upload speed test: Measures how fast you can send, and picks settings that fit.
- Streaming somewhere other than Twitch: Any service that takes WHIP: Cloudflare, Amazon IVS, Owncast, Restream…
- Stream to several places, and stream delay: Also send the stream elsewhere at the same time; or run it a few seconds behind.
- Projectors and multiview: Show the program, the preview, every scene, or one source in its own window or screen.
- Auto director: scenes that switch themselves: Cut to whoever's talking, switch scenes on the beat, or to your face cam when you shout.
- Studio mode: Get the next scene ready in a preview, then send it live with a transition.
- Transitions: Cut, fade, move, slide, swipe, zoom, fade to colour, luma wipe, stinger.
- The Stats panel: CPU, GPU, frame rate and stream health, and what to do when they're high.
Effects
- Instant replay and freeze frame: Show the last few seconds again on stream, in slow motion if you like; or freeze a picture.
- Video filters: Green screen, colour, blur, sharpen, outlines, glows, shadows, LUTs, masks and scrolling.
- Green screen (chroma key): Remove a green or blue background behind you.
- Blur or remove your background: Hide what's behind you without a green screen.
- Shader plugins: Extra transitions and filters written in GLSL, safe to add.
Recording
Backup & devices
Troubleshooting
- My camera is black or won't start: Permission, another app using it, or the wrong device.
- No sound, or the meter doesn't move: Mic permission, mute, the wrong device, or a hidden source.
- Twitch refuses the stream: The key is wrong or old, or the account can't stream yet.
- Choppy, blurry or lagging stream: Too much for your connection or your computer: here's how to tell and fix it.
- My screen share stopped, or asks again: Browsers need a click to share a screen, each time flint opens.
- Something's missing in Safari, Firefox or on a phone: Some features need Chrome or Edge on a computer.
- My scenes are gone: Another collection, another browser, or cleared site data.