Transform Videos with FAL AI Avatar Swaps & Voice and Publish to TikTok with Blotato

Convert Viral Videos into AI Avatar Swaps and Publish on TikTok with Blotato

Who is this for? This workflow is designed for content creators, agencies, influencers, and automation builders who want to transform viral videos into personalized avatar-based edits — and automatically publish them on TikTok (and other platforms) without manual editing or video software.

What problem is this workflow solving? Replacing a character in a video, transforming the voice, merging audio/video, and publishing to social networks typically requires multiple tools, editing skills, and a lot of time.
This workflow automates the entire pipeline end-to-end:

No manual video editing
No audio processing
No API debugging
No uploading/publishing hassles

It’s a full AI-powered transformation system that produces ready-to-post content in minutes.

What this workflow does This workflow receives an avatar image + a viral video URL and automatically:

Extracts the audio using Replicate
Replaces the character in the video using FAL WAN Replace
Transforms the voice using FAL Chatterbox Speech-to-Speech
Merges the new video and audio using FAL FFmpeg
Saves results to Google Sheets for tracking
Publishes the final video to TikTok via Blotato (and optionally to Instagram, Facebook, LinkedIn, X, and YouTube)
Sends a confirmation message when publishing is complete

Everything runs automatically, in parallel, for maximum speed.

Setup Telegram Bot
Add your Telegram Bot credentials in the Telegram Trigger node.
Send an avatar photo + video URL in one message (URL in the caption).

Workflow Configuration
Add your FAL API key
Add your Replicate API key
Add your targetVoiceAudioUrl (this is the voice the output will use)

Google Sheets
Connect your Google Sheets OAuth credentials
Select your sheet and ensure columns exist (e.g. original URL, output URL)

Blotato Publishing
Install community node @blotato/n8n-nodes-blotato
Connect your Blotato API credentials
Select the TikTok account (and optional other accounts)

Test the workflow
Send a Telegram message with: A photo (avatar) Video URL in the caption
The workflow will process everything automatically.

How to customize this workflow to your needs Change platforms**: remove or add publishing outputs (TikTok, Instagram, LinkedIn, Facebook, YouTube, X).
Change voice style**: update the targetVoiceAudioUrl in the Workflow Configuration node.
Use your own avatar**: send any image in Telegram — the workflow automatically makes it public and ready for AI processing.
Adjust video logic**: swap FAL models, update merg

👋 Need help or want to customize this? 📩 Contact: LinkedIn
📺 YouTube: @DRFIRASS
🚀 Workshops: Mes Ateliers n8n

📄 Documentation: Notion Guide Need help customizing? Contact me for consulting and support : Linkedin / Youtube / 🚀 Mes Ateliers n8n