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SQLines or dbSlice? Often both

SQLines and dbSlice solve different halves of a database migration. SQLines is known for converting schema and SQL code (procedures, functions, triggers, views) between platforms. dbSlice moves data and keeps it in sync, with a Windows GUI, checks before writing and masking for test copies. This page sticks to what each vendor publishes; prices were checked on October 23, 2026.

Try it free on the Microsoft Store ↗ See pricing

At a glance

  • This comparison: explains when to use SQLines (schema and code conversion), dbSlice (data moved and kept in sync) or both, with prices checked on October 23, 2026.
  • Engines: dbSlice covers the leading databases, including Firebird, SQLite and InterSystems; SQLines publishes paths for Oracle, SQL Server, MySQL, MariaDB, PostgreSQL, IBM DB2, Informix and Sybase.
  • Where SQLines fits better: converting a lot of PL/SQL or T-SQL, sources such as IBM DB2, Informix or Sybase, and command-line tools driven by configuration files.
  • Free or paid: try it in the free Microsoft Store version (no license key); writing to a target database needs a Desktop or Server license.

Price

SQLines sells one perpetual license covering SQLines Data and SQLines SQL Converter: US$ 495 for one license, with volume discounts, a site license at US$ 9,995, and renewal for new releases and support after the first year (US$ 375 for one license). (sqlines.com/purchase, 23/10/2026)

dbSlice Desktop is US$ 89.99 (launch price; regular US$ 149.99) and the Windows Server edition US$ 199 (launch price; regular US$ 299): perpetual use of the last eligible version, 12 months of updates and support, optional maintenance after year one, 14-day money-back guarantee.

dbSlice Synchronize tab

Side by side

dbSliceSQLines (as of 23/10/2026)
Converts procedures, functions, triggers, viewsNoYes (SQL Converter and SQLines Data)
Moves data between live databasesYesYes (SQLines Data)
Keeps data in sync after the first copyUpsert, insert-new, update-only, incremental by a growing columnCheck with the vendor
Key-by-key diff and on-screen checks before writingYesData validation tool listed
Mask data while copyingYesCheck with the vendor
Send rows to Kafka / RESTYesCheck with the vendor
InterfaceWindows app + CLICommand-line tools with configuration files
EnginesSQL Server, PostgreSQL, Oracle, MySQL, MariaDB, Firebird, SQLite, InterSystems Caché/IRISMigration paths published for Oracle, SQL Server, MySQL, MariaDB, PostgreSQL, IBM DB2, Informix, Sybase; Firebird, SQLite and InterSystems are not among them
Entry priceUS$ 89.99 (launch price)US$ 495
Renewal after year oneOptional maintenanceUS$ 375 (new releases and support)

When SQLines is the better choice

  • Your project has a lot of PL/SQL or T-SQL to convert. Code conversion is the hard part of most migrations, and dbSlice does not do it.
  • Your source is IBM DB2, Informix or Sybase.
  • Your team prefers command-line tools driven by configuration files.

When dbSlice fits better

  • The schema and code are handled (by SQLines, ora2pg or by hand) and you need the data moved and kept in sync until cutover, with a GUI the whole team can use.
  • You need Firebird, SQLite or InterSystems Caché/IRIS.
  • You need masked copies of production for test environments.
  • You also send rows to Kafka, RabbitMQ or REST APIs.
  • Running in production for more than six years in mission-critical environments, across multiple data centers and on-premises, with SQL Server, PostgreSQL, Aurora and InterSystems Caché/IRIS.

Using both

A common split: convert the schema and code with SQLines, review it, create the target objects, then use dbSlice to load the data, compare counts key by key, and run a nightly sync until the switch.

Also comparing DBConvert? →

Also comparing Full Convert? →

Also comparing EMS? →

SQLines is a trademark of its owner. dbSlice is not affiliated with SQLines. Competitor information comes from its public website on the date shown and may have changed.

Try it on your own data: the free Microsoft Store version needs no license key.

Try free on the Microsoft Store ↗Buy dbSlice

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  • A DBConvert alternative: one license for every database pair
  • Redgate SQL Data Compare or dbSlice?
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  • pgloader or dbSlice?
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