What you see is what goes out
One scene feeds the preview, the file, every stream and your guests. Nothing to keep in sync.
Professional streams,
from your laptop.
Every layout, overlay and guest, live to YouTube, Twitch or any RTMP target.
Multistream supported, depending on your internet connection. macOS, Windows and Linux. No account, no cloud, no subscription.
A comparison of the same video call. On the left, a plain webcam pointed at a cluttered room. On the right, the same call through Watercourse: a shared slide, the presenter in a corner camera with the room replaced behind her, a name badge, a logo and a ticker, all composed into one scene. Drag the handle, or use the arrow keys, to move between them.
Supports
- YouTube
- Twitch
- Kick
- X
- Vimeo
- Custom RTMP
- predefined scene layouts
- 8 predefined scene layouts
- cameras at once
- 4 cameras at once
- remote guests
- 4 remote guests
- output sizes
- 6 output sizes
A production studio, not a screen capture
Most tools capture a window. This one builds the whole show.
Everything runs on your machine
Compositing, effects, mixing and encoding all happen locally. Guest video goes straight between their machine and yours.
Guests, properly produced
Up to four, with a green room, per-guest mute, and no echo between them.
A phone becomes a second camera
Scan a QR code and a phone on your wifi joins the scene. Nothing to install.
The presenting tools are already here
Teleprompter, intros, backstage chat and music, inside the studio rather than on a second monitor.
The take survives your decisions
Mark moments as you go, and keep the camera as its own clean file. A wrong call is recoverable.
Eight layouts, and you can move everything
Pick how the screen and cameras sit together, then drag either one on the preview.
Layout
Drag the camera and the screen to reposition them, directly on the preview.
Emily Smith
Emily Smith
Emily Smith
Emily Smith
Emily Smith
Emily Smith
Marcus
Priya
Daniel
Output
720p 1080p 4K Square Portrait Match shared screen 30 / 60 fps
Match shared screen sizes the output to what you are sharing, so text stays sharp.
It looks like your show, not like a webcam call
Backgrounds, a watermark, a ticker and name badges, drawn in before the frame leaves.
Backgrounds
Sixteen gradients and solids, sixteen built-in images, or drag in your own.
Logo watermark
Ours or your own, drawn into every frame.
Scrolling ticker
Lower-third announcements, in a colour you choose.
New episode every Thursday · Subscribe for updates ·
New episode every Thursday · Subscribe for updates ·
Participant names
Twelve badge colours or your own hex, rounded or square, and a choice of font.
Emily Smith
Priya
Marcus
Look right before you go on
Every control is previewed live and applied to what you send out, not bolted on afterwards.
- Four cameras, one scene
- Your main camera plus three more. Tile them in the gallery, or cut between them.
- Replace what is behind you
- Blur the room, swap in an image, or drop in a colour. It runs on device.
- Six effect presets, or your own mix
- Bright, Warm, Cool, Vivid, Soft and Mono, with sliders underneath for the rest.
- Fit and finish
- Crop a 4:3 webcam to fill a 16:9 scene, scale it, mirror it, add a shadow.
Camera effects
Live preview
Brightness
Contrast
Saturation
Warmth
Background
Replace camera background
Camera feed shadow
Crop camera to scene
Scale webcam up
Mirror camera
Square corner camera
Multi-camera without buying cameras
Scan a QR code and a phone on the same wifi becomes another camera. For most people that
is the best camera they own.
- Nothing to install on the phone. It opens a page the app is serving itself.
- The phone joins as another camera: tile it in the gallery, or cut to it with a key press.
- Everything stays on your wifi. The feed never touches the internet.
The phone shows a certificate warning the first time, because your computer serves the page. Expected, and only once.
Use your phone as a camera
https://192.168.1.176:8789/camera
Scan this with your phone, on the same wifi.
Copy link Done
Change the whole look mid-sentence
Save the whole look as a scene and return to it with one key. Nothing you send out sees
a gap.
Scenes
1
Streaming
2
Intro
3
Interview
4
Outro
+
Pictures, not names
Thumbnails under the preview, so mid-show you pick a picture, not a list item.
Your camera settings stay put
Switching leaves your camera settings alone. It will not drop the backdrop hiding your room.
Bare keys, no modifiers to hunt for
- 1
- Jump to a saved scene
- C
- Cut to the next camera
- Shift 2
- Cut to a specific camera
- M
- Mute
- I
- Show the intro
- O
- Show the outro
- P
- Play music
- B
- Mark this moment
- ?
- The full list
Single keys, so they can be pressed without looking down mid-sentence.
Up to four guests, properly produced
Guests open the same app and enter a room code. Their video travels straight between
their machine and yours.
Room
K7F2QD
In scene
Marcus
In scene · 1080p
Green room
P
Add
Priya
Waiting · camera on
D
Add
Daniel
Waiting · muted
Nothing from the green room reaches the recording or the stream.
- A real green room
- Guests connect and wait. Nothing they send goes out until you add them.
- Host controls
- Add, remove, mute or disconnect, per guest, at any time.
- Guests hear each other
- Not just you, and nobody hears themselves echo.
- Guests see the finished scene
- Exactly as you built it, with their own camera drawn locally so it has no lag.
- Guests get their own controls
- Camera, microphone and effects, so you are not talking anybody through settings.
- Screen sharing coexists
- Share a screen and the cameras arrange themselves beneath it.
The second monitor, folded into the app
A teleprompter, intro and outro clips, backstage chat and music. Three of the four never
reach the scene, so they cannot leak.
Teleprompter
A floating panel you drag anywhere. Auto-scroll, or take over manually.
Script
Speed
Welcome back to the show. Today we are walking through the whole recording pipeline, start to finish, and I will show you exactly where each frame goes…
…then we will bring Priya in to talk about the guest flow.
Intro and outro
Full-screen images or videos. Clips hold on their final frame until you hide them.
Intro
0:06
Sponsor
Outro
A clip's soundtrack is mixed in, and can be muted.
Microphones mute automatically while it plays, so nobody talks over it.
Backstage chat
Cue your guests without it reaching the audience. Works in the green room too.
You two minutes, then I bring you in 🙂
Priya ready when you are
You start with the pricing slide 👍
Emoji shortcodes and clickable links. Nothing is stored: the log lasts the session.
Music
Bundled royalty-free tracks or your own, with volume and optional fades.
Ethereal Vistas
Included · 3:12
Slow Current
Included · 2:48
my-theme.mp3
Yours · 1:05
Microphones mute automatically while a track plays.
Live · 00:42:18
3 of 4 destinations
YouTube 6.0 Mbps
Encoder keeping up
Twitch 4.5 Mbps
Encoder keeping up
Facebook 4.0 Mbps
Reconnecting, attempt 2
Custom RTMP Off
Disabled
Twitch chat, on screen
kestrel_dev the corner cam crop is so clean
mira.builds what layout is this?
ottoline audio is perfect today 👌
Live, and you can tell it is working
The same scene to YouTube, Facebook, Twitch or any RTMP target, each toggled and reported
on its own.
- Live health, per destination
- Bitrate and encoder health per target, not one green light that tells you nothing.
- Automatic reconnection
- If one drops, Watercourse reconnects with backoff. A flaky connection does not end the broadcast.
- Twitch chat overlay
- Read-only, no login, drawn into the scene so it reaches every destination at once.
Everything you need after you stop
Recordings go straight to a Watercourse folder in your videos folder, at anything from 720p to 4K. When you stop, the take opens for
review.
Videos/Watercourse/episode-24.mp4
1080p · 60 fps Export MP4
00:00 18:42 37:24
Drag the handles to trim. Four moments marked during the take.
- Review, trim and export
- Scrub the take, cut what you do not want, export to MP4 or keep the original.
- Mark moments as they happen
- Press a key mid-take. Marks land on the timeline and in a text file beside the file.
- Record the camera separately
- Keep your main camera as its own clean file, so live cuts can be redone afterwards.
- Separate audio files
- Save microphone and system audio as standalone tracks, ready to hand to an editor.
- Crash recovery
- An interrupted recording is repaired into a playable file next time the app starts.
- It is just a file
- An MP4 in a folder you chose. No upload, no queue, no account.
Be among the first
Watercourse is in development. Join the waitlist for early access and updates as it gets closer to release.
- No subscription: great features free, go pro with a one-time purchase
- No account, no cloud storage, no upload queue
- Your recordings stay in a folder you control
- macOS, Windows and Linux
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