How to make Shorts from a YouTube live stream: 3 ways, from free to fully automatic

Affiliate disclosure: this page contains affiliate links. If you sign up for a paid plan through them, we earn a commission at no extra cost to you.

The stream ends after two hours. Your voice is gone, and you know Shorts are how new viewers find you. So you open the replay and start scrubbing: where was that moment chat exploded? You find it, cut it, crop it to vertical, fix the captions. For a 2-hour stream, just watching it back takes 2 hours. Most weeks, the Shorts never get made.

Looking for how to go live in the Shorts feed (a vertical live stream)? That's a different feature. This guide is about turning a finished stream into Shorts.

Where the time actually goes

Steps 2–4 are already fast in most tools. The three methods below differ in one thing: who does step 1.

Way 1: YouTube Studio's Clips and Shorts tool (free)

YouTube lets you cut a Short from your own long video, including a saved live stream, without downloading anything. In YouTube Studio:

1. Go to Content → Videos and open your stream replay.
2. Select Clips and Shorts in the left menu, then Create clip or Short → Short.
3. Pick the part you want by selecting lines in the transcript and clicking Confirm selection, or by entering timestamps.
4. Click Preview Short, then Create Draft and finish the upload as usual.

Where available, YouTube adds auto captions to the Short, and shows AI-powered suggestions and an outline of your video in the left panel. YouTube says those AI suggestions are only in select countries and languages (English is included). On the mobile app, the route is Remix → Edit into a Short, which takes up to 60 seconds of a public video you uploaded.

• Good fit: you need 1–3 Shorts a week, you remember roughly when the good moments happened, and everything lives on YouTube.
• Hard when: you want 10+ Shorts from every stream, or you also post to TikTok and Reels and need the files.

Way 2: YouTube's automatic live highlights (free, vertical mobile streams only)

In September 2025 YouTube announced AI-powered highlights that find the most compelling moments of a stream and create ready-to-share Shorts. The catch is in YouTube's help page: the automatic Short highlight is only offered when the stream

• runs between 10 minutes and 12 hours,
• is vertical and streamed from the YouTube mobile app,
• is not a screencast, has chat enabled, and isn't set as Made for Kids.

The highlight is saved as a private video, so you still decide whether to publish it. If you stream from your phone in vertical, check the "After the event" section before doing anything else — it costs nothing. If you stream horizontally from OBS, Streamlabs or another desktop setup, this option won't appear.

Way 3: Paste the replay link and let AI shortlist the moments (OpusClip)

OpusClip is a web app built for one job: turning a long video into many short vertical clips with captions. There's nothing to install, and it takes a YouTube link directly, so your stream replay URL is all you need.

1. Paste the replay link into Clip long video.
2. Use Adjust range to process only the part of the stream worth clipping (you're charged only for that part).
3. Click Create, then review the list of clip candidates and download the ones you like (Pro can also schedule them to YouTube, TikTok, Instagram and more).

In our own test on the free plan, a 26-minute 48-second event video (spoken in Korean) produced 17 vertical clip candidates, each 20 seconds to 1 minute 54 seconds long, cut where sentences ended, with captions and a title on every clip. We haven't run an English stream yet; we'll add those results here. For longer videos, OpusClip's help center lists these ranges:

Not on YouTube? OpusClip also takes links from Twitch, Zoom, StreamYard, Riverside, Vimeo, Facebook, LinkedIn and others, or a file upload of up to 10 GB (Free and Starter) or 30 GB (Pro).

• Good fit: you stream an hour or more every week, want a batch of Shorts from each stream, and post to more than one platform.
• Skip it if: your streams are under 30 minutes, you only post a Short or two, or your stream is mostly gameplay without talking — AI clippers pick moments mainly from what's said.

Which way fits your stream

Whatever you choose, jot down the time whenever chat reacts during the stream. It cuts the "find" step for every method.

What Way 3 costs per month

OpusClip charges by the minutes of video you process: 1 minute = 1 credit. Free gives 60 minutes a month (watermarked, clips expire after 3 days), Starter is $15 for 150 minutes, and Pro is $29 for 300 minutes.

Start with one past stream on the free plan. The clips will carry a watermark, but you'll see how many usable candidates your kind of stream produces before paying anything.

Before you start

• Use your own streams. OpusClip asks you to confirm you have the rights to the video before processing. For someone else's stream, check the creator's clipping rules or ask first.
• Mind the 3-day expiry on Free. Download anything you want to keep.
• Review every clip before posting. AI picks are candidates, not final edits — check that each clip makes sense without the rest of the stream.

Not sure which OpusClip plan you need? See OpusClip free plan limits & pricing, or compare it with another AI clipper in OpusClip vs Vizard.