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TongFlow
What TongFlow is
TongFlow is an open-source tool for building multimodal AI workflows on a visual canvas. Users can add, transform, combine, split, and batch text, images, audio, video, 3D, and documents, and switch compatible models while keeping a workflow. Listed capabilities include text-to-video, image-to-video, and AI avatars, with commercial use supported. Workflows can run on a user's own machine through the free Self-Host plan, or in TongFlow Cloud through a browser or macOS and Windows desktop app. The desktop app opens the cloud workspace and requires an internet connection. Cloud costs $2.99/mo and includes a managed workspace, per-user data isolation, and encrypted credentials. New cloud accounts get seven days without a card; eligible first-time subscribers can start a separate seven-day trial that requires a card. Running workflows requires compatible plugins and provider credentials. Model API and GPU compute charges are billed separately by providers; TongFlow says it does not sell generation credits. The hosted version may process identity, workflow data, uploaded materials, outputs, and operational logs.
Who it suits
TongFlow may suit people building workflows that combine different media types, whether they want to run the open-source core locally or use a managed cloud workspace. It is also relevant to users creating video or image outputs with AI workflows, including for commercial use.
What it does well
- Visual workflows support text, images, audio, video, 3D, and documents.
- Compatible models can be switched without replacing the workflow.
- Free Self-Host plan can run on users' own machines.
- Cloud provides per-user data isolation and encrypted credentials.
- Commercial use is supported.
What to know first
- Workflow runs require compatible plugins and provider credentials.
- Model API and GPU compute costs are billed separately.
- The desktop app requires an internet connection.
- The additional seven-day trial requires a card.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Cloud | 7 days free on sign-up; an additional 7-day trial requires a card · Managed hosted workspace · Browser access · macOS and Windows desktop app · Per-user data isolation · Encrypted credentials | $2.99 a month |
| Self-host | Open-source core; you manage infrastructure, storage, updates and provider charges | Free |
| TongFlow Cloud | $2.99 USD / month · Managed workspace and plugins; model API and GPU costs billed separately by providers | $2.99 a month |
| Enterprise | Let's talk. · Deployment, integrations, rollout and support requirements discussed with the team | On request |
As tongflow.com lists them, read 20 Sept 2026. The maker's own page has the final word.
Verdict
TongFlow offers a local, open-source option and a managed cloud workspace for building multimodal workflows. Account for plugin and provider requirements, separate model and compute charges, and the hosted version's data processing when choosing how to use it.
Facts from TongFlow's own pages
- AI avatars
- Yes · tongflow.com, 20 Sept 2026
- Commercial use
- Yes · tongflow.com, 20 Sept 2026
- 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. · tongflow.com, 12 Oct 2026
- Data isolation
- The pricing page says TongFlow Cloud provides per-user data isolation and encrypted credentials. · tongflow.com, 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. · tongflow.com, 12 Oct 2026
- Free plan
- Yes · tongflow.com, 20 Sept 2026
- Hosted data
- The privacy policy says the hosted version may process sign-in identity, workflow data, uploaded materials, generated outputs and operational logs. · tongflow.com, 12 Oct 2026
- Image-to-video
- Yes · tongflow.com, 20 Sept 2026
- Integrations
- The privacy policy names Modal, OpenRouter, Google Gemini, OpenAI and DeepSeek as providers that may process workflow inputs. · tongflow.com, 12 Oct 2026
- Model switching
- Users can switch compatible models while keeping the workflow. · app.tongflow.com, 12 Oct 2026
- Plugin requirements
- Running a workflow requires compatible plugins and the credentials required by the selected providers. · app.tongflow.com, 12 Oct 2026
- Product
- TongFlow is an open-source tool for building multimodal AI workflows on a visual canvas. · app.tongflow.com, 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. · tongflow.com, 12 Oct 2026
- Paid from
- 2.99 · tongflow.com, 20 Sept 2026
- Support
- Enterprise discussions cover deployment, existing-system integrations, rollout and support needs. · tongflow.com, 12 Oct 2026
- Supported materials
- The product describes workflows using text, images, audio, video, 3D and documents. · app.tongflow.com, 12 Oct 2026
- Text-to-video
- Yes · tongflow.com, 20 Sept 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. · tongflow.com, 12 Oct 2026
- Usage charges
- Model APIs and GPU compute are billed separately by connected providers, and TongFlow says it does not sell generation credits. · tongflow.com, 12 Oct 2026
- Workflow building
- Users can add, transform, combine, split and batch materials in workflows. · app.tongflow.com, 12 Oct 2026
Where TongFlow stands on Freedom251
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