VoiceStudio: Open-Source All-in-One Local AI Voice Studio
VoiceStudio is an open-source audio studio that runs 100% locally on your machine without subscriptions. It features voice cloning across 600+ languages, dubbin
VoiceStudio, an open-source audio workspace designed to handle end-to-end voice processing workflows directly on local hardware, has been introduced. The tool runs 100% locally without requiring external cloud subscriptions or account registrations.

Image source: @ftcarpe (X)
Unlike commercial voice cloning platforms that charge recurring monthly fees or impose usage-based token limits, VoiceStudio enables creators and developers to execute speech synthesis and audio editing entirely on-device.
Voice Cloning, Video Dubbing, and 600+ Language Support
VoiceStudio consolidates several essential audio tasks into a unified environment rather than functioning merely as a standalone text-to-speech engine.
- Voice Cloning: Synthesizes custom speech output modeled from reference audio samples.
- Video Dubbing: Facilitates multi-language dubbing aligned with existing video timelines.
- Transcription & Audiobook Generation: Converts spoken audio to text transcripts and generates multi-chapter audiobooks from written copy.
- 600+ Language Support: Covers more than 600 languages, making it suitable for global localization and multi-language content production.
Built-in OpenAI-Compatible API and Cross-Platform Support
A key architectural advantage of VoiceStudio is its built-in OpenAI-compatible API interface.
Developers and teams already using OpenAI audio/TTS endpoints in external agents, automation pipelines, or third-party applications can redirect their base_url to the local VoiceStudio host without rewriting client logic.
VoiceStudio provides cross-platform compatibility across macOS, Linux, and Windows. Because all inference is processed locally, processing throughput for high-resolution synthesis and long-form video dubbing will scale according to the user's local GPU compute and available VRAM.
Sources
- VoiceStudio Announcement: @ftcarpe (X)