rixterYour channels, watched for you
Add a YouTube or Twitch channel and it gets a tab with its latest videos. The app checks for new ones every 5 minutes.
Finished streams, cut into Shorts.
Paste a YouTube or Twitch link. Afterstream finds the best moments and renders vertical Shorts with captions and titles.
From a link to Shorts in three steps.
The slow part runs on a GPU while you do something else. You only step in once, to check the webcam.
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Paste a link
A video, a finished livestream or a Twitch VOD. Streams from your channels are picked up by themselves once they end.
The renderer downloads, transcribes and finds the webcam -
Set up your Shorts
Drag the box onto the webcam in each scene, pick the layout and the caption colour, and say how many Shorts you want.
About a minute, and your next stream starts from it -
Download the Shorts
Each one comes with a title, a description and tags, checked against your channel's rules. Trim it if you like, then post.
Moments picked by Claude or Gemini, rendered on the GPU
Made for people who stream, not people who edit.
Captions that keep up
Burned in from the transcript, the spoken word lit up in your colour.
Your webcam, where it belongs
Stacked above the gameplay, or in the corner like on stream. Found in every scene, fixed with one drag.
Titles in the stream's own words
The model reads the whole transcript, picks the moments and writes titles and tags, then checks them against your rules.
Trim without waiting
Every Short keeps 30 seconds on each side, so its start and end move right on the page.
Render on your own GPU.
The app runs on any small server. The heavy lifting happens on a Windows or Linux PC with an NVIDIA card, even one at home behind a router.
- Only outgoing requests: no ports to open.
- Transcribed with faster-whisper, encoded with NVENC.
- Your PC is off? A cloud GPU takes the job instead.
Your last stream already has Shorts in it.
Afterstream is invite-only. Have a code? Log in. No code yet? Ask for one.