TTSFree AI is a powerful offline text-to-speech software for Windows and Mac that turns books, PDFs, documents, and scripts into natural-sounding audio — with no credits, no monthly limits, and no cloud processing.

It can convert entire documents into speech, batch process multiple files, clone your voice, and create multi-speaker dialogues. Everything runs locally on your computer for complete privacy, with no input restrictions or character limits.

Whether you need to transform a full book into an audiobook, produce professional voiceovers, bring multi-character scripts to life, or simply want to generate bedtime stories, TTSFree AI gives you full control without the usual limitations of cloud-based tools.

Key Features and Highlights

• - Unlimited text-to-speech with zero credits or usage caps
• - Convert entire books, PDFs, EPUBs, DOCX, TXT and more into audio
• - AI Voice Cloning - Instantly clone your voice and generated unlimited speech in your voice
• - AI Voice Design - Create new AI voices using simple text prompts for expanded voice library
• - Script Mode - Assign unique voices to each character for multi-speaker dialogues, podcasts, and audio dramas
• - 400+ AI voices across 20+ languages and accents
• - Multiple TTS engines (including Qwen3-TTS, Kokoro, OmniVoice and more)
• - Bulk convert multiple files into speech at one go
• - 100% offline local processing for maximum privacy
• - Automatically export to MP3, WAV, M4A, and M4B (with chapter markers)
• - Lifetime license for Windows or Mac, free upgraded supported

Unlimited Text-to-Speech
Generate as much speech as you need without character limits, daily quotas, or subscription restrictions. Create long-form narration, audiobooks, and voiceovers locally without waiting in cloud queues.

Document-Level Conversion
Turn entire PDFs, EPUBs, DOCX files, presentations, Markdown, and TXT documents into audio. Assign different voices to different sections or use one consistent voice throughout. Export ready-to-use audiobook formats with automatic chapter markers.

AI Voice Cloning & Voice Design
Create a personalized AI voice from a short recording, or design original voices using simple text prompts that describe age, tone, and mood. Perfect for maintaining consistent character voices or brand narration.

Smart Script Mode
Bring scripts and conversations to life by assigning a unique voice to each speaker. Label characters once and the software automatically applies the correct voice throughout the entire dialogue — ideal for podcasts, audio dramas, and multi-character storytelling.

Bulk Speech Generation
Convert multiple documents into audio in one go. Streamline production for lessons, reports, audiobooks, and other long-form content.

Multiple TTS Models & 400+ Voices
Choose from a wide range of high-quality voices and engines, including Qwen3-TTS, Kokoro-82M, OmniVoice, and system voices. Switch between models based on your needs for expressiveness, speed, or hardware performance. Mix voices from different engines in the same project.

100% Offline & Private
All speech generation happens locally on your Windows or Mac computer after downloading the required models. Your documents, text, and voice data never leave your device.

TTSFree AI is built for creators who want professional-quality audio without the limitations of cloud-based tools. Whether you’re producing audiobooks, video voiceovers, educational content, or multi-speaker stories, it gives you unlimited generation, full privacy, and complete creative control.

Ideal for:

• Content creators and YouTubers
• Authors and publishers
• Educators and trainers
• Marketers and freelancers
• Writers and storytellers
• Anyone who prefers listening to long documents and books

Please note folks: Commercial Usage Supported for all included TTS models (Qwen3-TTS and Kokoro), except OmniVoice.