# Kestra vs Prefect

**Leader by Vioscale score:** Prefect

| Attribute | Kestra | Prefect |
|---|---|---|
| **Vioscale score** | 61.2 (55% (medium)) | 69.8 (76% (high)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 767 |
| adoption.github_stars | - | 23,691 |
| adoption.package_downloads_weekly | - | 2,710,819 |
| deployment.options | `{"cloud":true,"on_prem":true,"air_gapped":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"self_hosted":true}` |
| description.long | An open-source platform designed for orchestrating complex, long-running workflows across data pipelines, AI systems, and infrastructure operations. Supports multiple languages and deployment models (cloud, self-hosted, air-gapped), with built-in reliability features like retries, backfills, and comprehensive observability. | A workflow orchestration platform that enables teams to build resilient automated processes using Python, with features like automatic retries, state tracking, and run observability. Supports flexible deployment options ranging from managed cloud infrastructure to self-hosted environments on Kubernetes or user-provided compute. |
| features.capabilities | `{"cdc":false,"role":"orchestrator","lineage":true,"paradigm":"both","iso_27001":false,"dbt_native":true,"data_quality":true,"elt_pushdown":true,"python_first":true,"soc2_type_ii":false,"managed_cloud":true,"connector_count":"1900+","self_hosted_oss":true,"incremental_runs":true,"distributed_executor":true,"builder_ui_architecture":"visual_node_canvas","custom_http_webhook_catch_and_triggering":true,"native_llm_nodes_anthropic_openai_gemini":true,"on_premise_self_hosted_deployment_option":true,"bring_your_own_key_byok_for_llm_inference":true,"web_scraping_and_browser_automation_nodes":false,"sub_workflow_calling_and_reusable_templates":false,"human_in_the_loop_approval_steps_via_slack_email":true,"dynamic_conditional_routing_via_llm_classification":true,"unstructured_document_extraction_pdf_image_to_json":true}` | `{"role":"orchestrator","lineage":true,"paradigm":"batch","dbt_native":true,"python_first":true,"managed_cloud":true,"connector_count":"Not specified","self_hosted_oss":true,"incremental_runs":true,"distributed_executor":true}` |
| integrations.count | 1,900 | 5 |
| integrations.list | `[{"name":"Ansible"},{"name":"dbt"},{"name":"Spark"},{"name":"Airbyte"},{"name":"Dremio"},{"name":"Arrow Flight SQL"},{"name":"Git"},{"name":"GitHub"},{"name":"GitHub Actions"},{"name":"Kubernetes"},{"name":"Docker"},{"name":"Terraform"},{"name":"Slack"},{"name":"S3"},{"name":"Azure Data Lake Storage"},{"name":"Postgres"},{"name":"JDBC databases"},{"name":"HTTP APIs"},{"name":"Polars"},{"name":"Python"},{"name":"Bash"},{"name":"Node.js"},{"name":"Go"},{"name":"Apache Kafka"},{"name":"Apache Spark"},{"name":"PagerDuty"},{"name":"PostgreSQL"},{"name":"OpenAI"},{"name":"Anthropic"},{"name":"Google Gemini"},{"name":"Perplexity"},{"name":"Google Analytics"},{"name":"Salesforce"},{"name":"Facebook Ads"},{"name":"RabbitMQ"},{"name":"Yahoo Finance"},{"name":"AWS Secrets Manager"},{"name":"HashiCorp Vault"},{"name":"Google Cloud"},{"name":"Google BigQuery"},{"name":"R"},{"name":"Java"},{"name":"Julia"},{"name":"Ruby"},{"name":"Shell"}]` | `[{"name":"Pydantic AI"},{"name":"OpenAI"},{"name":"AWS Secrets Manager"},{"name":"HashiCorp Vault"},{"name":"dbt"}]` |
| language.primary | - | Python |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Open Source","summary":"Free, open-source","features":["Workflow design & execution","Scheduling & event triggers","Real-time processing","Embedded code editor","Git integration & versioning","Multi-cloud & air-gapped deployment"],"description":"Self-hosted open-source version with core orchestration features","contactSales":false},{"free":false,"name":"Kestra Cloud","summary":"Managed cloud orchestration","features":["Fully managed hosting","Built-in security and governance","Role-based access control","Audit logs","Asset lineage","Secrets management","Production-ready observability"],"description":"Fully managed cloud platform","contactSales":false},{"free":false,"name":"Enterprise","summary":"Enterprise self-hosted with dedicated support","features":["Annual subscription model","Customer success program with SLA","24-hour response time","Audit logs and governance","Multi-tenancy support","Advanced RBAC and secrets management","Dedicated support channel"],"commitment":"annual","description":"Self-hosted enterprise edition with advanced support","contactSales":true}],"summary":"Free open-source tier; managed and self-hosted enterprise options available","currency":"USD","freeTier":true,"sourceUrl":"https://kestra.io/pricing","retrievedAt":"2026-08-21T12:42:20.781Z","billingPeriods":["month","year"]}` | `{"type":"subscription","plans":[{"free":true,"name":"Hobby","summary":"Free forever","features":["workflow scheduling","workflow observability","logging & alerting"],"minSeats":2,"description":"Starter tier for individual workflows","contactSales":false,"includedLimits":{"users":"2","deployments":"5","run_retention":"7 days","serverless_compute":"500 min/mo"}},{"free":false,"name":"Starter","summary":"$100/mo","features":["bring your own compute","webhooks","API access"],"minSeats":3,"commitment":"monthly","components":[{"kind":"fixed","amount":100,"period":"month","currency":"USD"}],"description":"For teams bringing their own compute infrastructure","contactSales":false,"includedLimits":{"users":"3","deployments":"20","serverless_compute":"75 hours/mo","api_requests_per_min":"1250"}},{"free":false,"name":"Team","summary":"$100/user/mo","features":["service accounts","audit logging","team collaboration"],"minSeats":4,"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":100,"period":"month","currency":"USD"}],"description":"Multi-user collaboration with governance features","contactSales":false,"includedLimits":{"users":"4-8","deployments":"100","serverless_compute":"225 hours/mo","audit_log_retention_hours":"24"}},{"free":false,"name":"Enterprise","summary":"Custom pricing","features":["SSO (SAML/OIDC)","RBAC with object-level ACLs","multiple workspaces","directory sync (SCIM)","IP allowlisting","PrivateLink private networking"],"minSeats":5,"description":"Custom deployment with advanced security and compliance","contactSales":true,"includedLimits":{"deployments":"unlimited","serverless_compute":"custom"}}],"summary":"Free tier. Starter from $100/mo. Team at $100/user/mo. Enterprise custom pricing.","currency":"USD","freeTier":true,"sourceUrl":"https://www.prefect.io/pricing","retrievedAt":"2026-08-14T15:26:09.793Z","startingPrice":{"amount":100,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | commercial |
| pricing.price_level | low | high |
| pricing.transparent | no | yes |
| release.cadence_days | - | 1 |
| release.history | - | `[{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.4","date":"2026-08-25T17:15:13Z","type":"stable","version":"3.8.4"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.4.dev7","date":"2026-08-25T08:17:08Z","type":"prerelease","version":"3.8.4.dev7"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.4.dev6","date":"2026-08-22T08:08:27Z","type":"prerelease","version":"3.8.4.dev6"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.4.dev5","date":"2026-08-21T08:15:17Z","type":"prerelease","version":"3.8.4.dev5"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.4.dev4","date":"2026-08-20T08:14:17Z","type":"prerelease","version":"3.8.4.dev4"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.4.dev3","date":"2026-08-19T08:12:16Z","type":"prerelease","version":"3.8.4.dev3"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.4.dev2","date":"2026-08-18T08:12:04Z","type":"prerelease","version":"3.8.4.dev2"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.4.dev1","date":"2026-08-14T08:31:14Z","type":"prerelease","version":"3.8.4.dev1"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.3","date":"2026-08-13T18:53:23Z","type":"stable","version":"3.8.3"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.3.dev3","date":"2026-08-13T08:33:56Z","type":"prerelease","version":"3.8.3.dev3"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.3.dev2","date":"2026-08-12T08:32:30Z","type":"prerelease","version":"3.8.3.dev2"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.3.dev1","date":"2026-08-11T08:23:35Z","type":"prerelease","version":"3.8.3.dev1"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.2","date":"2026-08-07T21:15:48Z","type":"stable","version":"3.8.2"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.2.dev6","date":"2026-08-07T08:27:11Z","type":"prerelease","version":"3.8.2.dev6"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.2.dev5","date":"2026-08-06T08:59:18Z","type":"prerelease","version":"3.8.2.dev5"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.2.dev4","date":"2026-08-05T08:58:55Z","type":"prerelease","version":"3.8.2.dev4"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.2.dev3","date":"2026-08-04T09:00:27Z","type":"prerelease","version":"3.8.2.dev3"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.2.dev2","date":"2026-08-03T09:13:20Z","type":"prerelease","version":"3.8.2.dev2"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.2.dev1","date":"2026-08-01T08:49:58Z","type":"prerelease","version":"3.8.2.dev1"},{"url":"https://github.com/PrefectHQ/prefect/releases/tag/3.8.1","date":"2026-07-30T21:15:25Z","type":"stable","version":"3.8.1"}]` |
| reliability.sla_pct | - | 99.99 |
| reliability.status_page | - | yes |
| security.gdpr | yes | yes |
| security.hipaa | - | yes |
| security.scorecard | - | 6.9 |
| security.soc2 | yes | yes |
| security.vulnerabilities | - | `{"count":8,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=prefect&per_page=100","last_12m":6,"max_severity":"HIGH"}` |

## Capabilities (Data Engineering Tools)

| Capability | Kestra | Prefect |
|---|:--:|:--:|
| **Core** |  |  |
| Tool role | Orchestrator | Orchestrator |
| Processing paradigm | Batch + streaming | Batch |
| **Connectivity** |  |  |
| Connector count | 1900+ | Not specified |
| CDC / log-based replication | ✗ | - |
| **Transformation** |  |  |
| In-warehouse transformation (push-down) | ✓ | - |
| dbt-native orchestration | ✓ | ✓ |
| **Deployment** |  |  |
| Self-hosted / open-source available | ✓ | ✓ |
| Managed cloud available | ✓ | ✓ |
| **Governance** |  |  |
| Data lineage / asset catalog | ✓ | ✓ |
| **Authoring** |  |  |
| Python-first authoring | ✓ | ✓ |
| **Execution** |  |  |
| Incremental / partition-aware runs | ✓ | ✓ |
| **Quality** |  |  |
| Built-in data quality / tests | ✓ | - |
| **Scale** |  |  |
| Horizontal scale (distributed executor) | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T15:16:14.574Z. "-" = undocumented, not absent.*