Make a YouTube Shorts video with AI
Go from a single idea to a fully voiced, captioned YouTube Short using only free and low-cost AI tools.
最終更新日 2026/07/29
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Script → Voice → Video → Captions
Turn one idea into a finished YouTube Short: ChatGPT writes the script, ElevenLabs voices it, Kling generates the visuals, and CapCut adds captions.
- 1ChatGPT無料オプション
入力: Your video topic or idea → 出力: A 45-60 second Shorts script
YouTube Shorts script generator
Write a 45-60 second YouTube Shorts script about: [YOUR TOPIC]. Hook the viewer in the first 3 seconds, keep sentences short, and end with a call to action. Format it as spoken lines only, no stage directions.
- 2ElevenLabs無料オプション
入力: The script from Step 1 → 出力: An AI-generated voiceover (MP3)
Voice style direction
Paste the script into ElevenLabs' Text to Speech tool. Choose an energetic, upbeat voice and set the stability slider to around 40% for natural-sounding emphasis.
- 3
入力: The script and voiceover from Steps 1-2 → 出力: AI-generated video clips matching the script
Video clip generation prompt
Generate a short vertical (9:16) video clip of: [DESCRIBE THE SCENE FROM YOUR SCRIPT]. Style: cinematic, high detail, smooth camera motion, no text overlays.
- 4CapCut無料オプション
入力: Video clips + voiceover from Steps 2-3 → 出力: A finished, captioned YouTube Short ready to upload
Auto-caption settings
Import the clips and voiceover, use CapCut's Auto Captions feature, choose a bold high-contrast caption style, and export in 1080x1920 (9:16).
よくある質問
Do I need to pay for any of these tools?
No. ChatGPT, ElevenLabs, and CapCut all have free tiers that are enough for one Short. Kling's free credits are limited, so budget $0-$10 if you need more generations.
Can I use free alternatives instead?
Yes — swap ChatGPT for Gemini, or Kling for Runway, and the workflow still works the same way.
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