Estuary

Name: Estuary
Price: 100 USD

Free plan APILinuxMacSelf-hostedWebWindows

What Estuary is

Estuary is a managed data integration platform that brings together change data capture, batch, streaming and app synchronization for analytics, operations and AI. It supports transformations while data is moving, using SQL, Python or TypeScript, and describes delivery as exactly once with end-to-end latency under 100 milliseconds. More than 200 prebuilt connectors cover databases, warehouses, SaaS apps and cloud platforms, including Snowflake, BigQuery, Kafka, MySQL and PostgreSQL. Customers can use their own cloud bucket and set how long data remains there. Deployment options include public, private and Bring Your Own Cloud. Estuary lists SOC 2 Type II, HIPAA, HITECH, CCPA and GDPR among its compliance standards, and says data is encrypted at rest and in transit. The free plan is limited to 10 GB per month and two connector instances. A free plan and 30-day trial are available; paid plans start at $100/mo. Estuary offers API, self-hosted and web options.

Who it suits

Estuary is aimed at enterprises that need control over data cost, latency and deployment. Its connectors and transformation options may suit teams integrating data for analytics, operations or AI.

What it does well

More than 200 prebuilt connectors.
Supports SQL, Python and TypeScript transformations.
Offers public, private and BYOC deployment.
Data is encrypted at rest and in transit.
Includes a 30-day trial.

What to know first

Free tier is limited to 10 GB monthly.
Free tier allows up to two connector instances.
Paid plans start at $100/mo.

Plans

Plan	Billed and limits	Price
Pay-as-you-go	billed monthly	$100 a month
Annual	—	On request
Free	free indefinitely · up to 10 GB data/month · up to 2 connector instances · no credit card	Free
Developer	Free up to 10 GB/month · 2 concurrent connector instances	Free
Cloud	Billed monthly; $0.50 per GB + $100 per connector · 30-day free trial · 200+ managed connectors · unlimited users · first 6 connector instances $100/month each; additional instances $50/month each	$0.50 a month
Cloud PAYG	$0.50 per GB plus $100/month per first six connector instances; $50/month for each additional instance · usage-based data volume and connector task-hours · first 30 days free	$0.50 a month
Private/BYOC	annual plan; additional cloud-infrastructure and dedicated-management fees vary · private or bring-your-own-cloud deployment · custom regions and networking available	On request
Enterprise	Annual contract for Private and BYOC deployments · Volume discounts · SSO · custom SLA · private and BYOC deployments · dedicated support · custom connector development	On request

As estuary.dev lists them, read 20 Sept 2026. The maker's own page has the final word.

Verdict

Estuary combines several data integration methods with a large connector catalog and multiple deployment choices. The free tier has clear usage and connector limits, while paid plans start at $100/mo.

Facts from Estuary's own pages

API and monitoring: The OpenMetrics API exposes capture, derivation and materialization metrics for Prometheus, Datadog or custom integrations. · docs.estuary.dev, 15 Oct 2026
Automation: CI/CD workflows use flow.yaml specifications, refresh tokens and flowctl catalog publish commands, with connector secrets encrypted automatically on publish. · docs.estuary.dev, 15 Oct 2026
Batch and streaming: A source can be delivered from sub-100-millisecond streaming cadence to hourly or slower scheduled batches. · estuary.dev, 15 Oct 2026
CDC: Database captures read transaction logs, perform an initial backfill and then stream inserts, updates and deletes continuously. · estuary.dev, 15 Oct 2026
CLI: The flowctl CLI works with the public API to inspect, edit, test and publish dataflows and can be installed on macOS or Linux; Windows users are directed to WSL. · docs.estuary.dev, 15 Oct 2026
Company identity: Crunchbase lists the legal name as Estuary Technologies, Inc., a privately held New York software company founded by David Yaffe and John Graettinger. · crunchbase.com, 15 Oct 2026
Company profile: LinkedIn lists Estuary as a privately held software-development company headquartered in New York, founded in 2019, with 11–50 employees. · linkedin.com, 15 Oct 2026
Compliance: Estuary states that it is SOC 2 Type II certified and compliant with HIPAA, GDPR, CCPA and CPRA. · docs.estuary.dev, 15 Oct 2026
Connector extensibility: Connectors are Docker images supporting Airbyte specifications and Estuary gRPC protocols, so users can build connectors in any language and run them on any machine. · docs.estuary.dev, 15 Oct 2026
Delivery: Estuary describes exactly-once data delivery with sub-100ms end-to-end latency. · estuary.dev, 28 Sept 2026
Deployment: Deployment choices include shared public infrastructure, dedicated private data planes and bring-your-own-cloud environments. · estuary.dev, 15 Oct 2026
Documentation depth: Connector references include prerequisites, configuration properties, YAML examples, supported features and SaaS resource lists. · docs.estuary.dev, 15 Oct 2026
Durable collections: Captured streams are stored as durable append-only collections in the customer's cloud storage for replay, backfills and time travel. · estuary.dev, 15 Oct 2026
Encryption: Estuary states that data is encrypted in transit and at rest, with mutual TLS between internal services and encrypted connector credentials. · estuary.dev, 28 Sept 2026
Founded: 2019 · estuary.dev, 28 Sept 2026
Funding: Estuary announced a $17 million Series A backed by M13, FirstMark and Operator Partners. · linkedin.com, 15 Oct 2026
Headquarters: New York City, New York, United States · estuary.dev, 28 Sept 2026
Integrations: Estuary advertises more than 200 prebuilt connectors across databases, warehouses, SaaS apps, and cloud platforms, including Snowflake, BigQuery, Kafka, MySQL, and PostgreSQL. · estuary.dev, 28 Sept 2026
Kafka compatibility: The Dekaf integration lets Kafka-compatible consumers connect to Estuary as if it were a Kafka cluster. · estuary.dev, 15 Oct 2026
Licence: The Estuary Flow runtime uses Business Source License 1.1, forbids operating a third-party data-processing service, and is scheduled to change to Apache 2.0 on 2029-11-20; the connector repository is dual MIT/Apache 2.0. · github.com, 15 Oct 2026
Limit: connector pricing: A G2 reviewer said a roughly $200 connector cost caused them to avoid adding sources and preferred pricing based on active rows. · g2.com, 15 Oct 2026
Limit: learning curve: Integrate.io's 2026 review says Estuary has a learning curve and is aimed at teams with data-engineering skills. · integrate.io, 15 Oct 2026
Limit: no visual transformations: Integrate.io reports that Estuary lacks a graphical drag-and-drop transformation builder and relies mainly on SQL, TypeScript and Python code. · integrate.io, 15 Oct 2026
Limit: observability: G2 reviewers cite limited observability, insufficiently detailed logs and limited ability to query individual collections directly. · g2.com, 15 Oct 2026