Qlik Replicate performs log-based, agentless change data capture that reads database transaction logs to capture inserts, updates, and deletes with low impact on source systems. It supports transactional, batch-optimized, data-warehouse-optimized, and message-oriented streaming modes, and handles initial loads, ongoing replication, and zero-downtime migrations through a no-code interface.

Origins and targets span relational databases such as Oracle, SQL Server, DB2, MySQL, Sybase, and PostgreSQL; data warehouses such as Snowflake, Azure Synapse, Teradata, and Exadata; streaming systems such as Apache Kafka, Confluent, Azure Event Hubs, and AWS Kinesis; plus SAP, Salesforce, and mainframe platforms. It is offered as Qlik-managed cloud data integration or as a client-managed installation on-premises or on virtual machines.