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Flyte vs Windmill

A side-by-side comparison of Flyte and Windmill across 26 workflow orchestration capabilities. Flyte fully supports 22 of them and Windmill fully supports 21; of the 12 mandatory features, Flyte covers 11 and Windmill covers 11.

Flyte

Flyte is an open-source, Kubernetes-native workflow orchestration platform for building scalable, reproducible data, ML, and analytics pipelines.

Features fully supported22 / 26
Mandatory features: 11 / 12View profile

Windmill

Windmill is an open-source developer platform and workflow engine that turns scripts in Python, TypeScript, Go, Bash, SQL and more into workflows, scheduled jobs, webhooks and internal apps.

Features fully supported21 / 26
Mandatory features: 11 / 12View profile

Feature comparison

5 of 26 capabilities differ between Flyte and Windmill.

Change tools
CapabilityFlyteWindmill
DAG-based workflow definition
Define dependencies and execution order
Mandatory		YesYes
Code-first workflows
Versionable, testable workflows
Mandatory		YesYes
Declarative workflow model
Predictability, reproducibility
Mandatory		YesYes
Task dependency resolution
Correct execution order
Mandatory		YesYes
Persistent workflow state
Crash recovery, observability
Mandatory		YesYes
Task retries
Handle transient failures
Mandatory		YesYes
Retry policies (backoff, limits)
Avoid cascading failures
Recommended		YesYes
Scheduling (cron / time-based)
Automated recurring workflows
Depends		YesYes
Event-driven execution
React to external systems
Depends		YesYes
Backfills / replays
Reprocess historical data
Depends		YesNo
Idempotency support
Safe retries & replays
Mandatory		PartialPartial
Exactly-once semantics
Correctness for business workflows
Optional		PartialNo
Long-running workflows (days/months)
Business processes, approvals
Depends		YesYes
Human-in-the-loop steps
Approvals, manual actions
Optional		PartialYes
Dynamic workflows at runtime
Conditional execution
Depends		YesYes
Workflow versioning
Safe evolution over time
Recommended		YesYes
Distributed execution
Scalability
Mandatory		YesYes
High availability scheduler
Production reliability
Recommended		YesYes
Fault-tolerant execution
Crash safety
Mandatory		YesYes
Observability (logs, states, UI)
Debugging & ops
Mandatory		YesYes
Workflow-level visibility
Understand end-to-end runs
Mandatory		YesYes
Task isolation
Failure containment
Mandatory		YesYes
Native Kubernetes support
Modern infra compatibility
Depends		YesYes
Multi-language SDKs
Polyglot systems
Optional		YesYes
Deterministic replay
Safe recovery & correctness
Optional		PartialNo
Pluggable execution backends
Flexibility
Recommended		YesPartial

* To be considered a complete workflow orchestration tool, a tool must implement the features marked as mandatory according to our assessment.

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Learn more

Read the full profiles, including pros and cons, installation and alternatives.

FlyteWindmill

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