Build a YouTube Shorts Generator in 30 Minutes
YouTube Shorts is one of the fastest-growing content formats on the internet — and creators who publish consistently win the algorithm. But creating short-form videos daily is exhausting. What if you could automate the entire process using AI tools and a no-code workflow builder? In this guide, you'll learn exactly how to build a YouTube Shorts generator in under 30 minutes using n8n and kling.
Why Automate YouTube Shorts?
Short-form video demands volume. The creators dominating YouTube Shorts aren't always the most talented — they're the most consistent. Manual video production, however, takes hours per clip. Automation solves this by handling:
- Script generation using AI language models
- Visual content creation using AI video generators like kling
- Caption and subtitle generation automatically
- Scheduling and uploading without manual intervention
With n8n as your workflow backbone, you can connect all of these steps into a single automated pipeline that runs on a schedule — daily, hourly, or on demand.
What You Need Before You Start
Before diving into the build, make sure you have the following ready:
- An active n8n account (cloud or self-hosted)
- An API key for an AI language model (OpenAI, Claude, or similar)
- A kling account for AI video generation
- A Google account connected to YouTube
- A topic list or RSS feed to pull content ideas from
Step 1 — Define Your Content Input Source
Every great automation starts with a trigger. In n8n, create a new workflow and add a Schedule Trigger node to fire once per day. Then connect it to an HTTP Request node that pulls trending topics from a niche RSS feed, a Google Trends API, or simply a static list of topics stored in a Google Sheet.
This gives your workflow a fresh content idea every single day without you lifting a finger.
Step 2 — Generate the Script with AI
Next, connect an OpenAI node (or your preferred LLM) inside n8n. Feed it a prompt like:
- "Write a 60-second YouTube Shorts script about [TOPIC]. Make it punchy, engaging, and end with a call to action."
The AI will return a ready-to-use voiceover script. You can also instruct it to return a title, description, and five hashtags in the same response using a structured JSON output format. This saves additional API calls and keeps the n8n workflow clean and fast.
Step 3 — Generate Video with Kling AI
This is where the magic happens visually. kling is a powerful AI video generation platform that can produce cinematic short clips from text prompts. Inside n8n, add an HTTP Request node configured to hit the kling API.
Pass your script topic or a visual description as the prompt. For example:
- "A futuristic city at night with glowing neon lights, cinematic vertical format, 9:16 aspect ratio, 15 seconds"
kling will generate and return a downloadable video file. You can store it in Google Drive or an S3 bucket using built-in n8n integrations. The kling output quality is surprisingly high even for short clips, making it ideal for faceless YouTube Shorts channels.
Step 4 — Add Captions Automatically
Silent scrollers need captions. Use n8n to send the audio track (or generated script text) to a speech-to-text or subtitle API like AssemblyAI or OpenAI Whisper. The result is an SRT caption file that gets burned into the video or uploaded alongside it.
If your kling video is purely visual (no voiceover), you can overlay the script text as animated captions using a tool like Creatomate, connected directly through n8n.
Step 5 — Upload to YouTube Automatically
The final step is upload. n8n has a native YouTube node that lets you upload videos, set titles, descriptions, tags, and even thumbnail images — all programmatically.
Use the AI-generated title and description from Step 2, add the hashtags, and schedule the video to go live at your target time. Your entire n8n workflow now runs end-to-end without you touching anything.
Bonus Tips for Better Results
- Create a prompt library: Store multiple visual prompt templates in a Google Sheet and rotate them for visual variety.
- A/B test thumbnails: Generate two AI thumbnail options and use YouTube Analytics to see which wins.
- Add a human review step: Insert an approval step in n8n that sends you a Telegram or email notification before publishing — giving you a quick veto option.
- Scale with multiple niches: Duplicate the n8n workflow and change the topic source to run multiple Shorts channels in parallel.
How Long Does It Actually Take?
Once your n8n workflow is set up and your kling API is connected, the entire production cycle — from topic selection to uploaded Short — takes 3 to 8 minutes per video, depending on video length and rendering time. The setup itself takes about 30 minutes if you follow the steps above.
Final Thoughts
Building a YouTube Shorts generator with n8n and kling is one of the highest-leverage automation projects you can tackle as a content creator or digital entrepreneur. You invest 30 minutes once, and the system pays you back in hours saved every single week.
Start with one niche, one topic source, and one publishing schedule. Get the n8n workflow stable. Then scale. The algorithm rewards consistency — and now, your automation delivers it on autopilot.
This post was created with tools we use and recommend: n8n for workflow automation, Turbotic as an AI-native automation alternative, ElevenLabs for AI voiceover, Placid for visual content creation, and Hostinger for reliable VPS hosting. Some links are affiliate links.