Widefleet vs. Windmill for internal apps and workflows.

Keep your editor and agent. Choose the app model.

Widefleet starts with an independent project for your app or service. Deploy frontend assets and JavaScript or TypeScript Workers for server logic and APIs. Projects can also declare scheduled jobs, queue consumers and durable workflows. Your team owns the repository, reviews changes in Git and builds and deploys through the Widefleet CLI, with shared platform services for identity, data and system access.

The included SvelteKit and TanStack Start starters are examples, not a requirement. Other frameworks and custom code can be used when their build output, dependencies and authentication model fit Widefleet’s Worker runtime.

Windmill supports full-code apps too. Its React and Svelte frontends call backend runnables through generated client code. Those runnables execute on Windmill workers. You can develop locally with wmill app dev and deploy with wmill sync push, or use the browser editor. Windmill also provides CLI and MCP tooling for external coding agents.

Agent support and custom interfaces are shared capabilities. Evaluate whether your developers prefer to organize the backend as a deployed Worker application or around Windmill’s scripts and execution engine.

Widefleet app development Widefleet app configuration Runtime compatibility Windmill full-code apps Windmill CLI workflow Windmill local and agent tooling

Run the process behind the app.

A purchase request may need validation, a manager’s approval and an update in the ERP. Widefleet can keep that process alongside the application. Declare a Workflow in the project, implement its steps in code and use persisted step results, retries and event waits for approvals submitted by your app. Inspect and manage instances through the UI or CLI, including restarting from a selected step while retaining earlier results.

Windmill combines a visual flow editor with support for multiple backend languages. Its editor includes branches, loops, retries and approval steps. Workflows as code provide another authoring route. Backend scripts can use languages such as Python, TypeScript, Go and Bash, so existing automation can become part of an app or flow without rewriting every operation in TypeScript.

For a team with substantial Python processing or a preference for visual orchestration, Windmill is the more direct fit. Widefleet suits teams that want durable processes defined and reviewed alongside their app code.

Widefleet Workflows Widefleet runtime Windmill flow editor Workflows as code Windmill backend languages

Reuse the integration when the next app arrives.

Widefleet apps can call approved HTTPS APIs directly. Shared connectors let IT centralize credentials and business operations. IT deploys a connector from its own repository, manages its credentials and grants selected apps access to its methods. An inventory app and a purchasing app can call the same ERP connector. Their builders work against the exposed API without receiving the upstream credentials. Connector authors remain responsible for the business restrictions their methods enforce.

Windmill combines shared resources with reusable code. Resources describe connections and reference secrets; scripts and flows perform the operations. Teams can reuse both across tools, with permissions on folders and individual items. Apps can execute backend operations on behalf of their publisher, so viewers do not need direct access to each underlying resource. Choose the execution identity and app policy deliberately.

Both approaches let a second app reuse existing integration work. With Widefleet, the shared unit is a deployed connector API with app grants. With Windmill, it is the resource and the scripts or flows using it.

Widefleet connectors Widefleet network permissions Windmill resources Backend execution

Give colleagues access without making everyone a builder.

Widefleet connects company OIDC sign-in to the platform and its apps. Owners choose which groups can open an app; usage rights are separate from ownership and management collaboration. A deployed app can appear in the shared catalog while keeping its access rules. Business-specific authorization can be implemented in the app or enforced centrally through a shared connector.

Windmill also separates authors from people using tools. Developer and Operator roles work with group and folder permissions. Operators can run permitted apps and automation without authoring scripts or flows. For app-only access, authenticated guests can use a configured identity provider without a Windmill account. These are distinct access models with different allowances.

Widefleet app access Widefleet app catalog Windmill roles and permissions Windmill guest apps

Review changes with the right data boundary.

Widefleet apps declare their own database and file storage bindings. A branch or named preview gets separate, initially empty app data and inherits the parent app’s access groups. Network and connector grants are separate. This gives reviewers a deployed version to try without writing to the production app’s database.

Windmill supports connected databases and data tables, and can fork a whole workspace, including its scripts, flows, apps, resources and data tables. Forked data tables have isolated copies. Self-hosted Community supports forks within its three-workspace limit; Enterprise removes that cap.

An isolated preview or fork does not automatically isolate an external ERP. In either platform, use test connections or read-only operations when a review environment can reach a live company system.

Widefleet previews Windmill workspace forks

Compare the edition you would actually operate.

Widefleet runs on your infrastructure using Docker Compose. The documented server setup currently targets Linux x86-64, with published images for that architecture. Builders can use the CLI from Linux, macOS or Windows to deploy to an existing installation. Company OIDC sign-in, app access groups and connectors are included in the open-source platform. Your team operates the installation, identity integration, updates and backups. Widefleet Cloud is coming soon.

Windmill offers self-hosting with Docker Compose or Kubernetes, alongside a hosted cloud service. Its self-hosted Community edition includes unlimited executions. As reviewed on October 14, 2026, its pricing page lists up to 50 users, 10 users with SSO, four groups and three workspaces. Authenticated app guests have a separate allowance of 100 distinct guests per 30 days.

SAML, SCIM and custom OAuth provider configuration are Enterprise features. Windmill’s integrated Git Sync is available in Community for workspaces with up to two users, as well as in Cloud and Enterprise Self-Hosted. That limit concerns the integrated Git Sync feature; it does not mean Community users cannot keep code in Git or deploy through the CLI.

Check the identity provider, user roles and deployment workflow your organization needs against the current edition. “Self-hosted” alone does not describe the same feature set in every plan.

Widefleet self-hosting Widefleet source Windmill hosting options Windmill editions and limits Windmill custom OAuth providers Windmill Git Sync availability

Which should you choose?

Start with Widefleet if your team wants independent apps, APIs and background processes with a common foundation for company access, data and IT-owned integrations. Teams can deploy and share these projects across the organization.

Start with Windmill if your team wants to organize scripts, multi-language processing and visual workflows in one environment, then give colleagues interfaces for using them. It is especially relevant when existing automation is a large part of what you need to operate.

Try one real integration and two small apps. Review the second app’s setup, the employee sign-in experience and an integration update affecting both tools. Those tasks reveal more about fit than whether either platform can generate a first screen.