TongFlow: An Open-Source Multi-Modal GenAI Workflow Studio

TongFlow is an open-source tool designed to simplify the creation of complex generative AI projects. It acts as a studio where users can combine text, images, audio, video, and 3D models on a single, infinite canvas. The platform treats every AI model as a building block that can be connected to create new outputs. Unlike many other tools, TongFlow runs entirely on the user's own computer or private servers. This means no data is sent to the cloud unless the user chooses to do so. It is built on the AGPL-3.0 license, which ensures the software remains free and open for everyone to use and modify.

Benefits

TongFlow offers several key advantages for creators and developers. First, it prioritizes privacy. All workflows and uploaded files stay on the user's machine. There is no need to create an account, and the software does not collect any usage data. Second, it provides flexibility. Users can bring their own API keys for services like OpenAI or Gemini. This allows them to choose the best models for their specific needs without being locked into one provider. Third, the tool is transparent. It clearly lists every model it uses, such as FLUX.2 for images or Qwen3 for text. There are no hidden proprietary models. Finally, it is easy to deploy. Users can run it as a desktop app, in the cloud, or on their own infrastructure with minimal setup.

Use Cases

TongFlow is designed for anyone who wants to build multi-modal AI workflows. It supports eleven different input types, including text, images, audio files, video clips, documents, and 3D models. Users can perform various transformations on these inputs. For example, they can turn text into images, convert images into video, or generate music from a prompt. The platform also includes powerful combination nodes. These allow users to fuse multiple images together, sync lips to audio, clone voices, or transfer motion between characters. It is useful for content creators who need to edit video, developers building custom AI applications, and researchers experimenting with different models. The tool handles complex tasks like lip syncing and character swapping without requiring manual parameter tuning.

Pricing

TongFlow is completely free to use. The software is open-source and available under the AGPL-3.0 license. There are no subscription fees or hidden costs. While the tool itself is free, users may need to pay for API keys if they choose to use paid services like OpenAI or Gemini for text generation. The cloud deployment option uses Modal, which offers a free tier that includes access to high-performance H100 GPUs. This allows users to test the software without spending money initially.

Vibes

As a new project launched in June 2026, TongFlow is currently in its early stages. The community is actively contributing to the platform by adding new models and reporting bugs. Support is available through Discord and GitHub issues. Early feedback suggests that the tool is well-received for its focus on privacy and its ability to handle multiple media types in one place. Users appreciate the clear documentation and the fact that they can see exactly which models are powering their workflows. The open nature of the project encourages collaboration and rapid improvement.

Additional Information

TongFlow was developed by the Tong team and is hosted on GitHub. The project welcomes contributions from the community. Users can self-host the software by cloning the repository and following simple installation steps. The application requires Node.js version 20 or higher to run. It supports custom plugin development, allowing advanced users to extend its functionality with Python functions. The backend infrastructure relies on FFmpeg for media processing and Modal for GPU workers. This combination ensures that the tool can handle heavy computational tasks efficiently while remaining accessible on standard laptops.