Airbyte is an open-source data integration platform that supports more than 300 structured and unstructured data sources. It has tools like a Connector Builder for custom connectors, automated schema evolution and multiple deployment choices. That makes it a good fit for companies with small-scale and large-scale data integration needs.
Estuary is geared for real-time data integration with change data capture (CDC), ETL and streaming pipelines. It's got more than 100 no-code connectors and tools like stream-store-replay and materialization for low-latency data integration. It's geared for fast DataOps and has a range of pricing options, including a free tier.
For a more general-purpose data integration tool, Fivetran has connectors to more than 500 sources, including SaaS apps, databases and ERPs. It offers automated data integration, real-time analytics and support for major standards. You can deploy it in fully managed SaaS or self-hosted options, so it can work in a variety of environments.