Drop a long video.
AI makes the Short.
Video analysis → 3 story angles → captions and voice-over, automatically
Pick a trending video and AI analyzes it, picks an angle, writes the script, reframes to 9:16 and adds captions and a voice-over. The 4 Shorts made with this service have 120K views in total.
Shorts made with Shortsmith
How it works
- 1Paste a linkAny YouTube video
- 2Pick an angleAI pitches 3
- 3Review · doneCaptions and voice-over
Turn a rough one-line idea
into a drama starring
your own lead
Make an AI short dramaA person, an animal or an object can be the lead · paid plans
Drop a long video.
AI makes the Short.
AI watches the whole video, pitches 3 story angles, then cuts the highlights, reframes to vertical, adds captions and a voice-over, and renders it. All you do is pick the angle and review.
- 5 free credits, no card required
- AI watches the whole video → 3 story angles
- Script, captions and voice-over, done for you
Pick a trending video and AI analyzes it, picks an angle, writes the script, reframes to 9:16 and adds captions and a voice-over. The 4 Shorts made with this service have 120K views in total.
SHORTSMITH
Shortsmith (shortsmith.kr) is an AI web app that turns long videos into YouTube Shorts, Instagram Reels and TikToks. It analyzes the whole video, suggests story angles, then adds highlight cuts, captions and an AI voice-over. It is run by Changup Plus in the Republic of Korea.
What is Shortsmith? →Shorts made with Shortsmith
We picked NBA games, cut the highlights and added an AI script, voice-over and captions, then posted them to the YouTube channel NBA Studio (in Korean). Tap to watch.
- 1Game highlight cuts
- 2AI script
- 3AI voice-over
- 4Captions and title
It reads the whole video, then pitches 3 story angles first
Not just a clipping tool. AI analyzes the original from start to finish, researches the backstory, then pitches 3 angles that tell the story differently. You pick the direction — AI makes the rest.
- 01
It watches the whole video
Start to finish: scene changes, where the crowd erupts, what people say (speech recognition) and how commenters react — to find the moments that matter. It doesn’t just cut the first few minutes.
- 02
It researches the backstory
It searches the news and the web for the people and events in the video, then collects and summarizes the story behind it.
- 03
It pitches 3 story angles
Three different angles, each with a title, an angle, a hook and key facts. Pick one and the script, scenes, captions and voice-over follow it. Not feeling them? Get 3 new ones that don’t repeat.
Pick a story angle
ExampleWe read the whole video and the web, then made 3 different angles.
The season-long story of a role player who hit the game-winner — told through «why was he even on the court», not the play itself.
Hook · Three weeks ago, this guy wasn’t even on the bench
If the evidence is thin, you’ll know before you make it
Thin sources? You hear it first
Every angle is checked for whether there’s enough material to back the story. If sources are thin or the web search failed, the theme card shows a warning.
Deep research fills the gaps
It rewrites the search for your angle, runs more searches and attaches up to 5 source links to the theme — then re-checks the warning.
A human makes the final call
AI gathers and shows the evidence. You check names, numbers and dates scene by scene before rendering — edit a line and only that line is regenerated.
Pick → hand it off → post
Auto highlight detection
Scene changes, audio peaks and comment reactions find the moments that pop
9:16 reframe + captions
A crop that follows the players and the ball, with captions people can actually read
Learns your channel
Length, hooks and caption style from your best videos carry into the next one
Scheduled YouTube uploads
Channel connections are on the way. Once they open, post a finished Short right away or schedule it
Turn a rough one-line idea
into a drama starring
your own lead
Just write a topic. AI makes the story, characters, script, scenes, voices, and subtitles for your short drama. A person, an animal, an object: anyone can be the lead.
- 1One-line idea
Jot it down roughly, like "a new hire spills coffee on day one"
- 2Pick from 5 stories
AI drafts each plot from setup to twist and suggests them
- 3Same face and voice every episode
A character you make once stars in the whole series
Install it, and
your computer does the rendering
Use Shortsmith in the Windows or Mac app. Voice-over and AI translation still run on Shortsmith — only the video stitching happens on your computer.
- Hit render and your computer stitches the video — no waiting in the server queue
- Finished videos and downloads are saved to your «Videos/Shortsmith» folder
- If the app is closed, Shortsmith’s servers render it as usual
If you see an «unverified app» warning the first time
- Windows — in the «Windows protected your PC» window, click More info → Run anyway.
- Mac — open the download and move the app to your Applications folder, then open it. If it’s blocked, go to System Settings → Privacy & Security → Open Anyway.
- The render engine downloads automatically the first time you open it (about 100MB).
Monthly credits — pay only for what you make
1 Short = 7 credits
Top up anytime if you run low
Free
Try it before you decide
5 credits when you sign up
- Cut edits only — original audio + captions (script + AI voice-over on paid plans)
- 1 editor seat
- 1 connected channel (coming soon)
- Watermark on videos
- Originals kept 3 days · finished videos 30 days
Lite
For a steady solo channel
50 credits / month · about 7 Shorts
- 1 editor seat + 2 viewers
- 1 connected channel (coming soon)
- No watermark
- AI voice-over (TTS)
- Originals kept 7 days · finished videos 180 days
Creator
When you run several channels
150 credits / month · about 21 Shorts
- 2 editor seats + 5 viewers
- 3 connected channels (coming soon)
- YouTube comment overlay
- Scheduled uploads · A/B tests (coming soon)
- Originals kept 30 days · finished videos 1 year
Pro
Full-time creators posting several a day
680 credits / month · about 97 Shorts
- 3 editor seats + 10 viewers
- 5 connected channels (coming soon)
- YouTube comment overlay
- 2 renders at once
- Originals kept 30 days · finished videos 1 year
Studio
A one-person studio running many channels
1,750 credits / month · about 250 Shorts
- 5 editor seats + 20 viewers
- 10 connected channels (coming soon)
- YouTube comment overlay
- 3 renders at once
- Originals kept 30 days · finished videos 2 years
Making Shorts as a team? There are team plans too — per-seat pricing, a shared credit balance, roles and an activity log.
Turn today’s video
into your next Short
Sign up and get 5 free credits — make your first AI Short before you ever add a card.
Frequently asked questions
How do I make YouTube Shorts with AI?
Paste a YouTube link or upload your own video. AI watches the whole thing, pitches 3 story angles, and once you pick one it cuts the highlights, reframes to 9:16 and adds a script, captions and an AI voice-over. Review it, tweak anything, and download.
Can I try it for free?
Yes. Sign up and get 5 free credits — enough to make a full AI Short from start to finish, no card required. See pricing
Do I need to install editing software or an app?
No. It runs in your web browser, including on your phone. If you’d rather render on your own computer, there’s an optional Windows and Mac app.
How is this different from AI video generators?
Generative AI draws new scenes from text or images. Shortsmith works with real footage — it picks the moments from an existing video and adds the story and commentary. It’s built for channels that post Shorts from games, shows, podcasts and lectures.
Can I use someone else’s video?
Use videos you have the rights to. If it’s someone else’s, your commentary and editing need to add clear value — and it can still be blocked by Content ID.
Can I post the Shorts to Reels and TikTok too?
Yes. Everything is exported as a vertical 9:16 MP4, so it works for YouTube Shorts, Instagram Reels and TikTok as is.