TongFlow
TongFlow is an open-source tool for building multimodal AI workflows on a visual canvas.
What TongFlow 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, while compatible models can be switched without rebuilding the workflow. Listed capabilities include text-to-video, image-to-video, and AI avatars, with commercial use supported. The free Self-Host plan includes the open-source core, modalities and combine nodes, an official plugin catalog, and running on your own machines. TongFlow Cloud provides a managed workspace through the web, macOS, or Windows desktop apps, with per-user data isolation and encrypted credentials. Cloud costs $2.99 a month and offers seven days free without a card; an additional seven-day trial requires a card. Workflows require compatible plugins and provider credentials. Model API and GPU charges are billed separately by providers.
Good
- Open-source self-host option
- Supports many media modalities
- Switches compatible models within workflows
- Text-to-video and image-to-video
- Commercial use supported
Watch out
- Provider credentials are required
- API and GPU costs are separate
- Desktop app requires internet access
- Additional trial requires a card
Who it suits
TongFlow suits creators and developers building AI workflows across multiple media types. Self-hosting fits users running locally, while Cloud fits those wanting managed browser or desktop access.
Verdict
TongFlow offers a free self-hosted route and a low-cost managed Cloud workspace for multimodal workflows. Users must supply compatible plugins and account for provider charges beyond the subscription.
Plans and prices
From TongFlow's own pricing page, checked 20 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Cloud | $2.99 a month | Managed hosted workspace · Browser access · macOS and Windows desktop app · Per-user data isolation · Encrypted credentials · 7 days free on sign-up; an additional 7-day trial requires a card |
| Self-host | Free | Open-source core; you manage infrastructure, storage, updates and provider charges |
| TongFlow Cloud | $2.99 a month | Managed workspace and plugins; model API and GPU costs billed separately by providers · $2.99 USD / month |
| Enterprise | Priced on request | Deployment, integrations, rollout and support requirements discussed with the team · Let's talk. |
The facts
Each one read from TongFlow's own pages, with the date it was checked.
What it does
- AI avatars
- Yeschecked 20 Sep 2026
- Commercial use
- Yeschecked 20 Sep 2026
- Data isolation
- The pricing page says TongFlow Cloud provides per-user data isolation and encrypted credentials.checked 12 Oct 2026
- Desktop availability
- The desktop app is available for macOS and Windows and opens the cloud workspace in a dedicated window requiring an internet connection.checked 12 Oct 2026
- Hosted data
- The privacy policy says the hosted version may process sign-in identity, workflow data, uploaded materials, generated outputs and operational logs.checked 12 Oct 2026
- Image-to-video
- Yeschecked 20 Sep 2026
- Integrations
- The privacy policy names Modal, OpenRouter, Google Gemini, OpenAI and DeepSeek as providers that may process workflow inputs.checked 12 Oct 2026
- Model switching
- Users can switch compatible models while keeping the workflow.checked 12 Oct 2026
- Paid from
- 2.99checked 20 Sep 2026
- Plugin requirements
- Running a workflow requires compatible plugins and the credentials required by the selected providers.checked 12 Oct 2026
- Product
- TongFlow is an open-source tool for building multimodal AI workflows on a visual canvas.checked 12 Oct 2026
- 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.checked 12 Oct 2026
- Support
- Enterprise discussions cover deployment, existing-system integrations, rollout and support needs.checked 12 Oct 2026
- Supported materials
- The product describes workflows using text, images, audio, video, 3D and documents.checked 12 Oct 2026
- Text-to-video
- Yeschecked 20 Sep 2026
- Usage charges
- Model APIs and GPU compute are billed separately by connected providers, and TongFlow says it does not sell generation credits.checked 12 Oct 2026
- Workflow building
- Users can add, transform, combine, split and batch materials in workflows.checked 12 Oct 2026
The company
- 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.checked 12 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
- 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.checked 12 Oct 2026
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