Download Link 1: Download from Baidu Netdisk
Download Link 2: Download from HuggingFace.co
Index-TTS Windows All-in-One Package 
If you want to experience the powerful AI speech synthesis technology Index-TTS open-sourced by Bilibili but are frustrated by the complex and error-prone installation process, this all-in-one package is tailor-made for you.
With it, you can easily run Index-TTS on Windows 10 or Windows 11 without worrying about any technical details, especially the notoriously difficult installation of the pynini library on Windows.
❓ What is Index-TTS? 
Index-TTS is a highly advanced text-to-speech (TTS) model open-sourced by the Bilibili team, extensively optimized for the Chinese language. Its goal is to generate expressive, natural-sounding speech that rivals human voices.
Its core advantages are outstanding:
- Super Accurate Pronunciation: It precisely controls the pronunciation of Chinese polyphonic characters. You can directly specify the pronunciation of characters like "行" in "银行 (yín háng)" using Pinyin, greatly reducing the chance of AI mispronunciations.
- Extremely Natural Pauses: It intelligently understands punctuation marks and produces pauses of varying lengths accordingly, making long passages of text sound rhythmic, just like real human speech.
- Voice Cloning (Zero-Shot TTS): By providing a short, clear sample of a target voice (such as your own), it can "clone" that voice and use it to read any text you input.
- Superior Performance: In various technical evaluations, the quality and naturalness of speech synthesized by Index-TTS are industry-leading, even surpassing many well-known similar models.
However, behind such powerful features lies a complex installation and deployment process. The official installation method requires users to master the command line, manually configure the Python environment, and resolve various dependency conflicts, especially the extremely difficult compilation and installation of the pynini library on Windows.
The value of this all-in-one package is to clear all these technical obstacles for you!
🚀 Download and Use This Package 
You only need to follow these three simple steps to run Index-TTS on your computer.
Step 1: Download the Package
First, you need to download the compressed file named index-tts-win-20250718.7z. We provide two download links; choose the faster one:
- Download Link 1: Download from Baidu Netdisk
- Download Link 2: Download from HuggingFace.co
Important Note: .7z is a highly efficient compression format. If your computer cannot open it directly or if other decompression software shows errors, please install 360 Compression Software and try again.
Step 2: Extract the Files
After downloading, locate the compressed file on your computer. Right-click it and select "Extract Here" or "Extract to index-tts-win-20250718". After extraction, you will get a new folder.
Step 3: Double-Click to Start!
Open the newly extracted folder, and you will see a file named 双击启动.bat (Double-Click to Start.bat). Simply double-click it.

What Happens After Double-Clicking?
When you run 双击启动.bat, a black window (Command Prompt) will pop up. Please do not close it; the program is working automatically in the background:
- Automatically Check and Download Models: The first thing the script does is check if the required model files (several GB in size) are complete. If files are missing, it will automatically start downloading them from the server. You will see a "Downloading..." progress message in the window. This process takes some time, depending on your internet speed, so please be patient.  
- Start Core Services: Once all model files are ready, the script will automatically launch the core WebUI service for Index-TTS. This is the operational interface you will use for speech synthesis. 
- Wait for the Success Message: Continue to wait patiently until you see this key line in the black window: - Running on local URL: http://127.0.0.1:7860
When you see this address, it means Index-TTS has successfully started on your computer!
💻 Start Your AI Voice Creation Journey 
Keep the black window open, then open your web browser and enter the following address in the address bar:
http://127.0.0.1:7860

Press Enter, and you will see Index-TTS's clean and powerful web interface (WebUI). Now, you can start exploring, input text, upload your favorite voice samples, and generate unique AI voices!
How to Close the Program? Very simple: when you're done, just close the black Command Prompt window that has been open.
