# Estuary Flow vs Meltano

**Leader by vioscaleAI score:** Estuary Flow

| Attribute | Estuary Flow | Meltano |
|---|---|---|
| **vioscaleAI score** | 79.5 (72% (medium)) | 63.4 (36% (low)) |
| activity.commits_last_30d | - | 91 |
| adoption.dependent_repos | - | 42 |
| adoption.github_stars | - | 2,657 |
| content.faq | `[{"answer":"Estuary unifies ETL and ELT pipelines with real-time CDC, streaming, and batch data movement in a single managed platform. Data stays in your environment while Estuary handles continuous capture, transformation, and delivery to any destination. It is indexed under Data Engineering Tools.","source":"https://estuary.dev/pricing/","question":"What is Estuary Flow?","confidence":0.6},{"answer":"Estuary Flow offers a free tier, so you can start without paying. Paid plans start at $0.50. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://estuary.dev/pricing/","question":"Is Estuary Flow free?","confidence":0.6},{"answer":"Estuary Flow supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://estuary.dev/pricing/","question":"What platforms does Estuary Flow support?","confidence":0.6},{"answer":"Yes. Estuary Flow can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://estuary.dev/pricing/","question":"Can Estuary Flow be self-hosted?","confidence":0.6},{"answer":"We have confirmed 28 integrations for Estuary Flow, including Oracle, MySQL, PostgreSQL, Amazon S3, Google Cloud Storage, Azure Blob Storage, NetSuite and HubSpot, plus 20 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://estuary.dev/pricing/","question":"What does Estuary Flow integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for Estuary Flow. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Estuary Flow not holding them. Always confirm compliance directly before you rely on it.","source":"https://estuary.dev/pricing/","question":"What security certifications does Estuary Flow have?","confidence":0.6}]` | `[{"answer":"Meltano provides a code-first approach to data integration, offering 600+ pre-built connectors with compute-time pricing and integrated governance. It enables teams to combine data extraction, loading, and transformation workflows with native dbt support and orchestration capabilities. It is indexed under Data Engineering Tools.","source":"https://meltano.com/pricingcalculator","question":"What is Meltano?","confidence":0.6},{"answer":"Meltano offers a free tier, so you can start without paying. Paid plans are also available: Starter, Growth, Scale and Enterprise. Pricing changes often, so verify at source before relying on it.","source":"https://meltano.com","question":"Is Meltano free?","confidence":0.6},{"answer":"Meltano supports the web, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://meltano.com/pricingcalculator","question":"What platforms does Meltano support?","confidence":0.6},{"answer":"Yes. Meltano can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://meltano.com/pricingcalculator","question":"Can Meltano be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for Meltano, including Singer, dbt, Airflow, PostgreSQL, Snowflake, Great Expectations, Dagster and Superset. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://meltano.com/pricingcalculator","question":"What does Meltano integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Meltano. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Meltano not holding them. Always confirm compliance directly before you rely on it.","source":"https://meltano.com/privacy-policy","question":"What security certifications does Meltano have?","confidence":0.7},{"answer":"Yes. Meltano is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/meltano/meltano","question":"Is Meltano open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"hybrid":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | Estuary is a fully managed data integration platform that consolidates the capture, movement, and transformation of data across databases, cloud storage, and applications. It supports continuous streaming, scheduled batch operations, and optional transformations using SQL, TypeScript, or dbt. | Meltano provides teams with an open-source data integration engine that orchestrates extraction, loading, and transformation from multiple sources. It supports various replication methods and includes automatic data quality monitoring, with flexibility to deploy either in a managed cloud environment or as self-hosted infrastructure. |
| features.capabilities | `{"cdc":true,"role":"elt","soc2":true,"paradigm":"both","dbt_native":true,"cdc_support":true,"elt_pushdown":true,"managed_cloud":true,"connector_count":"200+","self_hosted_oss":true,"incremental_runs":true,"reverse_etl_addon":true,"streaming_ingestion":true,"custom_connector_sdk":true,"distributed_executor":true,"schema_drift_handling":true,"self_hosted_available":true,"managed_cloud_available":true}` | `{"cdc":true,"role":"elt","paradigm":"both","dbt_native":true,"data_quality":true,"elt_pushdown":true,"managed_cloud":true,"connector_count":"600+","self_hosted_oss":true,"incremental_runs":true,"streaming_ingestion":true,"custom_connector_sdk":true,"schema_drift_handling":true,"self_hosted_available":true,"managed_cloud_available":true}` |
| integrations.count | 200 | 600 |
| 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":"BigQuery","native":true,"category":"data_warehouse"},{"name":"Airbyte","native":false,"category":"connectors"}]` | `[{"name":"Singer"},{"name":"dbt"},{"name":"Airflow"},{"name":"PostgreSQL"},{"name":"Snowflake"},{"name":"Great Expectations"},{"name":"Dagster"},{"name":"Superset"},{"name":"Slack","native":true},{"name":"Salesforce","native":true},{"name":"Google Analytics","native":true},{"name":"BigQuery","native":true},{"name":"dbt Cloud","native":true},{"name":"HubSpot","native":true},{"name":"Zendesk","native":true},{"name":"Jira","native":true},{"name":"Google Sheets","native":true},{"name":"Amazon Redshift","native":true},{"name":"MySQL","native":true},{"name":"GitHub","native":true},{"name":"GitLab","native":true},{"name":"Freshdesk","native":true},{"name":"Intercom","native":true},{"name":"Apache Kafka","native":true},{"name":"AWS S3","native":true},{"name":"Looker","native":true},{"name":"Data.world","native":true},{"name":"Monday.com","native":true},{"name":"Asana","native":true},{"name":"Mailchimp","native":true},{"name":"LinkedIn Ads","native":true},{"name":"Airtable","native":true},{"name":"ActiveCampaign","native":true},{"name":"Marketo","native":true},{"name":"Microsoft SQL Server","native":true},{"name":"MongoDB","native":true},{"name":"Oracle","native":true},{"name":"Google Cloud Storage","native":true},{"name":"Amazon Advertising"},{"name":"Amazon S3"},{"name":"Auth0"},{"name":"BigCommerce"},{"name":"Chargebee"},{"name":"ClickHouse"},{"name":"Clickup"},{"name":"Close"},{"name":"Confluence"},{"name":"Contentful"},{"name":"Databricks"},{"name":"Datadog"},{"name":"DuckDB"},{"name":"eBay"},{"name":"Elasticsearch"},{"name":"Eventbrite"},{"name":"Facebook Ads"},{"name":"FreshBooks"},{"name":"Google Ads"},{"name":"Greenhouse"},{"name":"Kafka"},{"name":"Klaviyo"},{"name":"NetSuite"},{"name":"Postgres"},{"name":"Sumo Logic"}]` |
| language.primary | - | Python |
| license.spdx | - | MIT |
| market.availability | `{"primaryMarkets":[],"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":"Free","summary":"No cost, data-limited evaluation","features":["2 connector instances","10 GB/month data limit","Data stored in Estuary cloud storage"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Limited data volume with shared Estuary cloud storage","contactSales":false,"includedLimits":{"connector_instances":"2","data_volume_per_month":"10 GB"}},{"free":false,"name":"Cloud","summary":"$0.50/GB data moved + $100/month per connector (first 6), $50/month each additional","features":["Unlimited connector instances","Usage-based data pricing","Data stored in customer cloud account","Real-time CDC from databases","Batch and streaming data movement","SQL and TypeScript transformations","dbt integration for warehouse transformations","Schema evolution handling"],"components":[{"per":{"qty":1,"unit":"GB"},"kind":"metered","amount":0.5,"currency":"USD"},{"kind":"per_unit","unit":"connector_instance (first 6)","amount":100,"period":"month","currency":"USD"},{"kind":"per_unit","unit":"connector_instance (additional)","amount":50,"period":"month","currency":"USD"}],"description":"Usage-based pricing with data and connector instance charges; includes 30-day free trial","contactSales":false}],"summary":"Free tier with 10 GB/month limit. Cloud plan: $0.50/GB data moved plus connector instance fees.","currency":"USD","freeTier":true,"sourceUrl":"https://estuary.dev/pricing/","retrievedAt":"2026-09-18T15:55:37.792Z","freeTrialDays":30,"startingPrice":{"unit":"connector_instance (additional)","amount":50,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"hybrid","plans":[{"free":false,"name":"Starter","features":["200 compute hours/mo","Managed infrastructure","25 workspaces","Unlimited users","600+ connectors","Reverse ETL included","AI Data engineer agent","Direct access to Meltano Engineers via Slack","Enterprise security","Best in class SLA"],"commitment":"monthly","description":"Get your first managed pipelines running in hours, not weeks","contactSales":false,"includedLimits":{"users":"unlimited","connectors":"600+","workspaces":"25","compute_hours":"200/mo"}},{"free":false,"name":"Growth","features":["2000 compute hours/mo","Everything in Starter","100 workspaces","8 hours of engineering on demand/mo","Shared account management"],"commitment":"monthly","description":"Scale pipelines with real engineering support baked in","contactSales":false,"includedLimits":{"connectors":"600+","workspaces":"100","compute_hours":"2000/mo"}},{"free":false,"name":"Scale","features":["5000 compute hours/mo","Everything in Growth","Unlimited workspaces","15 hours of engineering on demand/mo","Dedicated account management","Cost monitoring workspace included"],"commitment":"monthly","description":"Dedicated support. Full platform access. Nothing held back.","contactSales":false,"includedLimits":{"connectors":"600+","workspaces":"unlimited","compute_hours":"5000/mo"}},{"free":false,"name":"Enterprise","features":["Unlimited compute hours/mo","Everything in Scale","Custom connectors","Custom hours of engineering on demand/mo","Custom SLA"],"commitment":"monthly","description":"Truly custom. For organisations with serious data at scale.","contactSales":true,"includedLimits":{"connectors":"600+","compute_hours":"unlimited"}}],"summary":"Free open-source version. Managed cloud plans from Starter (200 compute hrs/mo) to Enterprise (unlimited). Pay for compute, not rows.","currency":"USD","freeTier":true,"sourceUrl":"https://meltano.com","retrievedAt":"2026-08-03T14:26:46.478Z","billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | mid | low |
| pricing.starting_price | `{"amount":50,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 7 |
| release.history | - | `[{"url":"https://github.com/meltano/meltano/releases/tag/v4.4.1","date":"2026-10-07T10:57:42Z","type":"stable","version":"v4.4.1"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.4.0","date":"2026-09-29T13:20:16Z","type":"stable","version":"v4.4.0"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.3.0","date":"2026-09-21T16:03:58Z","type":"stable","version":"v4.3.0"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.2.2","date":"2026-07-22T15:52:24Z","type":"stable","version":"v4.2.2"},{"url":"https://github.com/meltano/meltano/releases/tag/v3.9.5","date":"2026-07-22T15:23:55Z","type":"stable","version":"v3.9.5"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.2.1","date":"2026-06-16T22:28:01Z","type":"stable","version":"v4.2.1"},{"url":"https://github.com/meltano/meltano/releases/tag/v3.9.4","date":"2026-06-16T22:27:42Z","type":"stable","version":"v3.9.4"},{"url":"https://github.com/meltano/meltano/releases/tag/v3.9.3","date":"2026-04-13T20:41:28Z","type":"stable","version":"v3.9.3"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.2.0","date":"2026-04-10T23:16:25Z","type":"stable","version":"v4.2.0"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.1.2","date":"2026-02-03T03:20:00Z","type":"stable","version":"v4.1.2"},{"url":"https://github.com/meltano/meltano/releases/tag/v3.9.2","date":"2026-02-03T13:39:09Z","type":"stable","version":"v3.9.2"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.1.1","date":"2026-01-31T18:19:50Z","type":"stable","version":"v4.1.1"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.1.0","date":"2026-01-30T23:39:39Z","type":"stable","version":"v4.1.0"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.0.9","date":"2026-01-19T19:14:48Z","type":"stable","version":"v4.0.9"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.0.8","date":"2025-12-17T19:50:30Z","type":"stable","version":"v4.0.8"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.0.7","date":"2025-12-09T02:51:42Z","type":"stable","version":"v4.0.7"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.0.6","date":"2025-11-20T00:02:42Z","type":"stable","version":"v4.0.6"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.0.5","date":"2025-11-04T15:26:22Z","type":"stable","version":"v4.0.5"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.0.4","date":"2025-10-31T17:09:54Z","type":"stable","version":"v4.0.4"},{"url":"https://github.com/meltano/meltano/releases/tag/v4.0.3","date":"2025-10-30T22:13:48Z","type":"stable","version":"v4.0.3"}]` |
| reliability.sla_pct | 99.9 | - |
| reliability.status_page | yes | - |
| security.certifications | `[{"name":"SOC 2 Type II","level":"Type II","status":"active"}]` | - |
| security.disclosure_policy | - | yes |
| security.gdpr | yes | yes |
| security.hipaa | yes | - |
| security.soc2 | yes | - |
| security.trust_center | - | https://meltano.com/privacy-policy |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=meltano&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Data Engineering Tools)

| Capability | Estuary Flow | Meltano |
|---|:--:|:--:|
| **Core** |  |  |
| Tool role | ELT / ingestion | ELT / ingestion |
| Processing paradigm | Batch + streaming | Batch + streaming |
| **Connectivity** |  |  |
| Connector count | 200+ | 600+ |
| 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: vioscaleAI. Generated 2026-10-16T19:06:04.650Z. "-" = undocumented, not absent.*