TongFlow
tongflow.com
What it is
TongFlow is an open-source tool for building multimodal AI workflows on a visual canvas. Workflows can add, transform, combine, split and batch text, images, audio, video, 3D and documents, with compatible models switchable without rebuilding the workflow. Listed capabilities include text-to-video, image-to-video and AI avatars, and commercial use is supported. Users can self-host or use TongFlow Cloud through a browser or desktop app for macOS and Windows; the desktop app opens the cloud workspace and requires an internet connection. Running a workflow depends on compatible plugins and credentials for the selected providers. Self-Host is free forever. TongFlow Cloud costs $2.99 a month and includes managed hosting, per-user data isolation and encrypted credentials. New cloud accounts receive seven days without a card; eligible first-time subscribers can then start a separate seven-day trial that requires a card. Model API and GPU compute charges are billed separately by connected providers, and TongFlow does not sell generation credits. Self-hosted workflows and materials are stored locally, with no telemetry to project authors according to the privacy policy.
Spec sheet
- Product
- TongFlow is an open-source tool for building multimodal AI workflows on a visual canvas.Read 12 Oct 2026 · app.tongflow.com
- Free plan
- YesRead 20 Sep 2026 · tongflow.com
- Trial
- New cloud accounts get 7 days without a card, and eligible first-time subscribers can then start a separate 7-day card-required trial.Read 12 Oct 2026 · tongflow.com
- Paid from
- 2.99Read 20 Sep 2026 · tongflow.com
- Integrations
- The privacy policy names Modal, OpenRouter, Google Gemini, OpenAI and DeepSeek as providers that may process workflow inputs.Read 12 Oct 2026 · tongflow.com
- Support
- Enterprise discussions cover deployment, existing-system integrations, rollout and support needs.Read 12 Oct 2026 · tongflow.com
- AI avatars
- YesRead 20 Sep 2026 · tongflow.com
- Commercial use
- YesRead 20 Sep 2026 · tongflow.com
- Company identity
- The site identifies the publisher as TongFlow and lists business inquiries via [email protected]; it does not state a headquarters or founding year on the pages opened.Read 12 Oct 2026 · tongflow.com
- Data isolation
- The pricing page says TongFlow Cloud provides per-user data isolation and encrypted credentials.Read 12 Oct 2026 · tongflow.com
- Desktop availability
- The desktop app is available for macOS and Windows and opens the cloud workspace in a dedicated window requiring an internet connection.Read 12 Oct 2026 · tongflow.com
- Hosted data
- The privacy policy says the hosted version may process sign-in identity, workflow data, uploaded materials, generated outputs and operational logs.Read 12 Oct 2026 · tongflow.com
- Image-to-video
- YesRead 20 Sep 2026 · tongflow.com
- Model switching
- Users can switch compatible models while keeping the workflow.Read 12 Oct 2026 · app.tongflow.com
- Plugin requirements
- Running a workflow requires compatible plugins and the credentials required by the selected providers.Read 12 Oct 2026 · app.tongflow.com
- Self-hosted data
- For self-hosting, workflows and materials are stored in a local SQLite file and on local disk, with no telemetry to project authors according to the privacy policy.Read 12 Oct 2026 · tongflow.com
- Supported materials
- The product describes workflows using text, images, audio, video, 3D and documents.Read 12 Oct 2026 · app.tongflow.com
- Text-to-video
- YesRead 20 Sep 2026 · tongflow.com
- Usage charges
- Model APIs and GPU compute are billed separately by connected providers, and TongFlow says it does not sell generation credits.Read 12 Oct 2026 · tongflow.com
- Workflow building
- Users can add, transform, combine, split and batch materials in workflows.Read 12 Oct 2026 · app.tongflow.com
Plans and prices
Strong points and limits
Strong points
- Workflows support text, images, audio, video, 3D and documents.
- Switch compatible models without rebuilding workflows.
- Free self-hosting option.
- Cloud includes data isolation and encrypted credentials.
- Commercial use is supported.
Limits
- Workflow runs require compatible plugins and provider credentials.
- Model API and GPU costs are billed separately.
- Desktop cloud workspace requires an internet connection.
Who it suits
TongFlow suits people building AI workflows from multiple media types who want either self-hosting or a managed cloud workspace. It may also fit commercial users, provided they can supply compatible plugins and provider credentials.
Verdict
TongFlow offers a free self-hosted route and a managed cloud option for multimodal workflows. Account for provider usage charges and the plugin and credential requirements before choosing how to run it.
Where Specifiction places it
- AI video generators#24 of 2429.0