# Estuary Flow vs Kestra

**Leader by Vioscale score:** Estuary Flow

| Attribute | Estuary Flow | Kestra |
|---|---|---|
| **Vioscale score** | 80.4 (71% (medium)) | 61.2 (55% (medium)) |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"on_prem":true,"air_gapped":true,"self_hosted":true}` |
| description.long | Estuary provides real-time and batch data movement across hundreds of systems using log-based change capture, event streaming, and traditional extract-load patterns, all without requiring code or infrastructure management. It's designed to power analytics, operational systems, and AI applications with sub-100ms latency in a single managed service. | 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. |
| features.capabilities | `{"cdc":true,"role":"elt","paradigm":"both","managed_cloud":true,"connector_count":"200+","self_hosted_oss":true,"incremental_runs":true,"distributed_executor":true}` | `{"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}` |
| integrations.count | 200 | 1,900 |
| integrations.list | `[{"name":"Oracle"},{"name":"MySQL"},{"name":"PostgreSQL"},{"name":"Amazon S3"},{"name":"Google Cloud Storage"},{"name":"Azure Blob Storage"},{"name":"NetSuite"},{"name":"HubSpot"},{"name":"Salesforce"},{"name":"Google Pub/Sub"},{"name":"Amazon Kinesis"},{"name":"Apache Kafka"},{"name":"Snowflake"},{"name":"Google BigQuery"},{"name":"Amazon Redshift"},{"name":"Elasticsearch"},{"name":"MongoDB"},{"name":"Amazon DynamoDB"},{"name":"Pinecone"},{"name":"OpenAI"},{"name":"Databricks"},{"name":"Facebook Ads"},{"name":"LinkedIn Ads"},{"name":"Google Ads"},{"name":"SingleStore"},{"name":"Motherduck"},{"name":"Apache Iceberg"}]` | `[{"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"}]` |
| market.availability | - | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"usage","plans":[{"free":true,"name":"Developer Free","summary":"Free forever up to 10GB/month","features":["Access to Cloud Plan features","10GB/month data limit","2 concurrent connectors","Cloud deployment"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Launch your first pipelines for free","contactSales":false,"includedLimits":{"data_moved":"10GB/month","concurrent_connectors":"2"}},{"free":false,"name":"Cloud","summary":"$0.50/GB + $100/connector, billed monthly","features":["200+ fully-managed connectors","Unlimited users","Millisecond latency or batch","Role-based access control (RBAC)","Bring your own cloud storage","US/EU data processing regions","SSH tunnel support","UI and CLI management","Standard support via community Slack and email","dbt Cloud integration","Kafka compatibility","Real-time monitoring and alerting","50% discount on 6+ connectors"],"components":[{"per":{"qty":1,"unit":"gb"},"kind":"metered","amount":0.5,"currency":"USD"},{"kind":"per_unit","unit":"connector","amount":100,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Enterprise","summary":"Custom pricing with volume discounts","features":["All Cloud features","Volume-based discounts","SOC 2 & HIPAA compliance reports","Single sign-on (SSO)","Custom SLA terms","Private and BYOC deployments","Provisioned servers","Custom region support","Private networking (PrivateLink, Google Service Connect)","Performance customization/tuning","Dedicated support via Slack and email","Migration assistance","IAM and advanced authentication","Custom connector development"],"description":"Scaled Pricing","contactSales":true}],"summary":"Usage-based: $0.50/GB + $100/connector/month. Free tier: 10GB/month.","currency":"USD","freeTier":true,"sourceUrl":"https://estuary.dev","retrievedAt":"2026-08-03T14:24:35.648Z","freeTrialDays":30,"startingPrice":{"amount":0.5,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"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"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | low | low |
| pricing.transparent | yes | no |
| reliability.sla_pct | 99.9 | - |
| reliability.status_page | yes | - |
| security.gdpr | yes | yes |
| security.hipaa | yes | - |
| security.soc2 | yes | yes |

## Capabilities (Data Engineering Tools)

| Capability | Estuary Flow | Kestra |
|---|:--:|:--:|
| **Core** |  |  |
| Tool role | ELT / ingestion | Orchestrator |
| Processing paradigm | Batch + streaming | Batch + streaming |
| **Connectivity** |  |  |
| Connector count | 200+ | 1900+ |
| 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 2026-09-01T14:46:34.640Z. "-" = undocumented, not absent.*