Sonicker: Voice Cloning Web App Built with Claude Code in 4 Days
Sonicker is a voice cloning web application that generates cloned speech from just 3 seconds of audio input. The tool was built by a solo developer in 4 days using Claude Code.
Technical Implementation
The core model powering Sonicker is Qwen3-TTS, which the developer notes is "a great model but heavy to run locally." To make it accessible, they built a web service that runs the model without requiring local installation.
The entire application was written with Claude Code. According to the developer: "Claude Code handled the entire frontend, API integration, and deployment config. I mostly just described what I wanted and reviewed the output."
Features and Specifications
- Requires only 3 seconds of audio for voice cloning
- No registration required to try
- Free credits included
- Supports multiple languages: English, Spanish, Japanese, Korean, Chinese, French and more
- Specifically lists support for 10 major languages: English, Chinese, Japanese, Korean, German, French, Russian, Portuguese, Spanish, and Italian
- Workflow: Upload a voice sample + enter text → generates cloned speech
- The developer notes: "Honestly, the quality is surprisingly good."
Technical Stack
- Core model: Qwen3-TTS (available on GitHub)
- Built with: Opus 4.6, Next.js, Cloudflare workers
- Deployment: Web service architecture to avoid local model weight issues
Resources
- Model repository: https://github.com/QwenLM/Qwen3-TTS
- Web app: sonicker.com
The developer is seeking feedback on potential use cases, asking: "Curious what use cases people here would find most useful — content creation, dubbing, accessibility?"
📖 Read the full source: r/ClaudeAI
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