What is VoiceBox?

Voicebox is an open-source desktop app for voice cloning and text-to-speech on macOS, Windows, and Linux.It clones voices from short samples (around 3 seconds) and generates speech across multiple TTS engines, accepting WAV, MP3, FLAC, and WEBM uploads as well as microphone and system-audio capture.

A timeline-based multi-voice editor supports arranging tracks, trimming clips, mixing conversations, and applying audio effects (pitch shift, reverb, delay, compression) with live preview and per-profile presets.

Local inference runs on Metal, CUDA, ROCm, Intel ARC, and DirectML or on remote GPUs via one-click server setup to enable local and offline workflows.Speech-to-text uses Whisper models across sizes and 99 languages, with optional local LLM transcript refinement for punctuation and disfluency removal.

Generation supports long outputs (up to 50,000 characters per request) with automatic chunking and seamless crossfades between segments.Developer-focused MCP integration exposes a voicebox.speak API for agents, scripts, and toolchains, making the tool suitable for creators, podcasters, voice artists, accessibility users, writers, and developers.

VoiceBox on the web:

VoiceBox details

Company: Spacedrive Technology Inc.
Jurisdiction: Delaware, USA
Built for: Individuals
Stated compliance: GDPR

Compliance as stated in VoiceBox's own published documentation.

VoiceBox tech specs

Works with: OpenAI / GPT OpenAI / Whisper Anthropic / Claude Qwen ElevenLabs
Integrations: GitHub

VoiceBox pricing

Free

This tool is free to use, with no credit card required.

Auto-renewal: Yes

Verify on the official pricing page.

Get started free

VoiceBox's key features

Voice cloning from short audio samples (≈3 seconds)
Multi-engine TTS accepting WAV/MP3/FLAC/WEBM uploads plus microphone and system-audio capture
Timeline-based multi-voice editor for arranging tracks, trimming, mixing, and applying audio effects (pitch shift, reverb, delay, compression) with live preview and per-profile presets
Local inference on Metal, CUDA, ROCm, Intel ARC, and DirectML, with remote GPU support via one-click server setup for local/offline workflows
Speech-to-text using Whisper models (multiple sizes, 99 languages) with optional local LLM transcript refinement for punctuation and disfluency removal

VoiceBox use cases

Produce professional audiobooks and long-form narrated content using Voicebox by cloning a narrator’s voice from a short sample, generating natural-sounding long-form TTS locally or via remote GPU inference, and exporting finished files as WAV/MP3/FLAC for publishers
Assemble multi-voice podcasts, audioplays, and marketing voiceovers in Voicebox’s timeline editor—capture mic takes, clone guest voices from short samples, apply effects and seamless multi-track editing, then mix and export episodes without relying on cloud services for privacy
Integrate Voicebox’s TTS and Whisper STT into apps and workflows via its API to build multilingual voice assistants, automated transcription pipelines, or data-sensitive IVR systems that run offline or on remote GPUs while supporting mic capture and common audio formats

VoiceBox user reviews

Based on 3 reviews, 100% of users recommend VoiceBox, rated highly for quality results.

recommend

don't

3 reviews

Liked for

Quality results 3 of 3

Easy to use 3 of 3

All key features 3 of 3

Good integrations 3 of 3

Would you recommend VoiceBox?

Recommend this tool?

VoiceBox playbooks

Step-by-step guides to get the most out of VoiceBox

Create a Personalized AI Voice Clone

Clone your own natural‑sounding AI voice and generate speech from custom text in minutes using the free Voicebox tool.

0 0 View guide

Who is VoiceBox for?

Content creators
Voice artists
Writers
Developers
Accessibility enthusiasts

VoiceBox FAQ

Is VoiceBox free?

Yes. VoiceBox is free to use and does not require a credit card.

Is VoiceBox safe to use?

VoiceBox states GDPR compliance in its own published documentation. VoiceBox is operated by Spacedrive Technology Inc., registered in Delaware, USA. It has a substantial audience that is independently measured month to month.

What are the best alternatives to VoiceBox?

The closest alternatives to VoiceBox are Speech-to-Speech, Voicemaker, Applio, ElevenLabs and Voice.ai. You can compare them side by side in the alternatives section further down this page.

What does VoiceBox do with my data?

Its privacy policy states that personal data is not sold or shared for marketing purposes. Data may be shared with third-party service providers that help run the product.

Does VoiceBox auto-renew or offer refunds?

VoiceBox subscriptions renew automatically until you cancel.

Does VoiceBox have an API?

Yes. VoiceBox offers an API, so you can call it from your own applications instead of using the interface directly.

Who made VoiceBox?

VoiceBox is built and operated by Spacedrive Technology Inc., a company registered in Delaware, USA.

Which AI models does VoiceBox use?

VoiceBox is built on OpenAI / GPT, OpenAI / Whisper, Anthropic / Claude, Qwen and ElevenLabs. Which models you can reach may depend on your plan.

What does VoiceBox integrate with?

VoiceBox connects with GitHub.

Compliance, privacy and billing terms are as stated in each product's own published documentation and have not been independently verified by TopAI.tools.