The modern Fivetran HVR alternative
for log-based CDC.
TwinCommit is a self-hosted, log-based replication engine that teams evaluate as a Fivetran HVR alternative. Your data never leaves your network, pricing is flat per source database, and delivery is exactly-once.
TwinCommit at a glance
- 0 objectsinstalled in your source database
- Exactly-oncecheckpoint commits with the data
- 1 binaryno JVM, manager or agents
- 22 connectorscovering the top 15 databases
- MCP serveroperate it from Claude, Copilot or Cursor
Why teams choose TwinCommit
What you get when you move off Fivetran HVR
Your network, your keys
Runs entirely inside your environment. No data passes through a third-party cloud.
Flat pricing
Per source database, not per row or per monthly active row.
Enterprise sources
Native Db2 LUW, Db2 for z/OS and Oracle log readers.
MCP-native operations
Manage pipelines from your AI assistant.
Evaluation checklist
Questions to ask in any Fivetran HVR evaluation
Here is how TwinCommit answers each one. Put the same questions to every vendor on your shortlist.
| Question | TwinCommit |
|---|---|
| What has to be installed or enabled inside the source database? | ✓Nothing beyond standard logging settings. No triggers, capture tables, shadow tables or stored procedures. |
| How is exactly-once delivery guaranteed after a crash? | ✓The checkpoint is committed in the same target transaction as the data, so a restart never loses or repeats a transaction. |
| Are transactions applied in source commit order? | ✓Yes. Changes are buffered per transaction and applied at commit, in commit order. Rolled-back work never reaches the target. |
| What runs on the replication host? | ✓One static binary. No JVM, no application server, no separate manager process. |
| Does one product cover relational, NoSQL, warehouse and streaming targets? | ✓Yes. Oracle, MySQL, SQL Server, PostgreSQL, MongoDB, Cassandra, Redis, Elasticsearch, Snowflake, Databricks, Synapse, BigQuery, Redshift, S3/ADLS/GCS data lakes, Spark, Hive and Kafka all use the same pipeline format. |
| How do operators manage it day to day? | ✓CLI, Prometheus metrics and a built-in MCP server, so you can check lag, restart pipelines and re-snapshot tables from Claude, Copilot or Cursor. |
| How is it licensed? | ✓Flat per source database. Not per core, not per row, and not per target. |
| How long to the first replicated row? | ✓Minutes: twincommit check, twincommit snapshot, twincommit run. |
Migration path
From Fivetran HVR to TwinCommit in three steps
No big-bang cutover. Your source database doesn't change.
- 1
Map channels
Each channel's locations and tables become a pipeline file.
- 2
Parallel run
Verify with
twincommit verify. - 3
Switch
Cut over consumers and retire the old hub.
TwinCommit vs Fivetran HVR: FAQ
Is TwinCommit SaaS?
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No. TwinCommit is self-hosted software you run on a VM, in containers or on Kubernetes. Data never leaves your environment.
More comparisons
Fivetran HVR is a trademark of Fivetran. TwinCommit is not affiliated with or endorsed by Fivetran. This page describes TwinCommit's capabilities. Ask each vendor to confirm how their product handles the questions above.
Run TwinCommit next to Fivetran HVR this week.
Download the free Developer edition, or have one of our replication engineers walk you through a migration plan.