Best for OSS self-hosting with connector breadth
Try AirbyteAirbyte is MIT-licensed and ships 350+ connectors maintained by the project plus a community contributor pool. Self-hosted is free; Cloud at $2.50 per credit (1 credit = 1M rows for most connectors) is comparable to Fivetran on raw economics but with the OSS escape hatch. For teams whose connector library overlaps Fivetran's by 80-90 percent and who want the option to self-host or fork specific connectors, Airbyte is the most credible Fivetran alternative on connector breadth.
Strengths
- +MIT OSS with 350+ connectors
- +Cloud at $2.50 per credit is comparable to Fivetran economically
- +Self-hosted option preserves data residency
- +Active connector marketplace
Trade-offs
- −Connector reliability varies (community-maintained ones less stable)
- −Self-hosting requires K8s + Postgres + ops capacity
- −UI less polished than Fivetran
- OSS
- MIT, 350+ connectors
- Cloud trial
- $2.50 free credits, 14 days
- Cloud
- $2.50/credit (1M rows)
- Teams/Enterprise
- Custom + SSO
Migration steps
- Self-host via Helm chart on K8s or sign up for Airbyte Cloud.
- Configure connectors matching your Fivetran sources.
- Run parallel pipelines; compare row counts and column completeness.
- Cut warehouse downstream queries to Airbyte tables; cancel Fivetran once stable.
Not for: Airbyte is the wrong fit for teams without ops capacity who specifically want Fivetran's polished managed experience; Fivetran or Hevo fit that better.