TTSbox
Text to Speech Built-in voices Voice cloning option WAV download No signup

Free Text to Speech Online with Optional Voice Cloning

Enter text, choose a built-in voice, or provide an authorized voice sample to generate speech locally in your browser. Download the result as a WAV file with no signup.

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Local Voice Model

Cached locally after first load

Sample voices are licensed test clips. To clone a real person's voice, only upload or record voices you own or have permission to use.

Quick facts

Text to Speech at a Glance

Price
Free
Signup
Not required
Input
Up to 1500 characters per generation
Voice sources
Built-in voices or authorized voice sample
Supported languages
English, French, German, Spanish, Portuguese, Italian
Processing
Runs locally in supported browsers
Output
WAV audio download
First use
Model download required
Recommended browser
Desktop Chrome or Edge

Workflow

How Text Becomes Voice

Steps

From text to downloadable audio

Five steps to generate voice audio from written text in your browser.

View steps
  1. Enter text: Type or paste your script (up to 1500 characters).
  2. Choose a language and voice: Select a language and pick a built-in sample voice.
  3. Optionally provide an authorized voice sample: Upload or record a short authorized voice clip to use voice cloning instead of a built-in voice.
  4. Generate speech: The AI model creates voice audio locally using WebGPU.
  5. Download WAV audio: Play the generated audio in the browser and download it as a WAV file.

The model is cached in your browser after the first download. Future visits load faster.

Privacy

Text to Speech Privacy

Your text and voice sample stay in your browser.

View details
  • No server upload of your text, voice sample, or generated audio.
  • All processing runs locally via WebGPU on your device.
  • No account signup or API keys required.
  • Generated WAV files are saved directly to your device.

The model is downloaded from the internet on first use. After caching, it loads from your browser storage.

Output

WAV audio download

Generate and download WAV audio files with no watermarks.

View details
  • Output format: WAV (uncompressed audio).
  • Play audio directly in the browser before downloading.
  • Download the file to use in video editing, presentations, or other projects.
  • No watermarks or branding on the generated audio.

Generated audio quality depends on the voice sample and model capabilities.

Voice Source

Built-In Voices vs Voice Cloning

Voice Option Best For Requires Upload or Recording
Built-in voice Quick text-to-speech generation No
Authorized voice cloning Matching a custom voice Yes

Voice cloning should only be used with your own voice or voices you have explicit permission to use. Learn about voice cloning for text to speech.

Use Cases

Best Uses for Text to Speech

Great for

  • •YouTube and TikTok draft voiceovers
  • •Product demo narration and walkthroughs
  • •Audiobook drafts and preview chapters
  • •Language localization for indie projects
  • •Private voice experiments and prototyping

Not for

  • •Impersonation or deceptive content
  • •Production dubbing requiring professional QA
  • •Commercial use without proper voice licensing

Commercial use depends on your rights to the text, voice source, and generated audio.

FAQ

Frequently asked questions

What is text to speech?
Text to speech (TTS) is technology that converts written text into spoken audio. TTSBox uses AI models running in your browser to generate natural-sounding voice audio from any text you enter. Choose from built-in voices or an authorized voice sample as the voice source.
Do I need to clone a voice to use text to speech?
No. You can generate speech using built-in sample voices without providing any voice sample. Voice cloning is an optional feature that lets you use an authorized voice as the audio source when generating speech from text.
Can I use my own voice for text to speech?
Yes. You can record your own voice or upload a short audio clip as a reference sample for voice cloning. Only use your own voice or voices you have explicit, documented permission to clone. See the safety policy for responsible voice cloning guidelines.
What languages are supported?
TTSBox text to speech supports English, French, German, Spanish, Portuguese, and Italian. Each language has a dedicated AI model (about 150 MB) that downloads on first use and is cached in your browser. Switch languages by loading the corresponding model pack.
Can I download the generated voice?
Yes. After generating speech, you can play the audio directly in the browser and download it as a WAV file. The audio is generated and processed locally on your device. No watermarks are added to the downloaded file.
How long can my text be?
You can enter up to 1500 characters of text per generation. The resulting audio length depends on the text length and speaking pace. For longer content, generate multiple segments and combine them in your preferred audio editor.
Is generated audio processed locally?
Yes. After the initial model download, all audio generation runs locally in your browser using WebGPU. Your text and voice samples are not sent to a remote server. The generated WAV file is created and saved directly on your device.

Related

Related Voice Tools

Speech to Text

Upload or record audio and transcribe it into editable text in your browser.

Try speech to text →

Voice Cloning

Learn how voice cloning works as a voice source for text to speech.

Learn about voice cloning for text to speech →

Browser TTS

Understand how browser-based text to speech compares to system TTS.

Explore browser-based TTS →

Safety Policy

Guidelines for responsible voice cloning and AI voice generation.

Review responsible AI voice use →

Need the opposite workflow? Try Speech to Text.