# MOLT: A Toolkit for Migrations You Can Trust

DevFeed: [MOLT: A Toolkit for Migrations You Can Trust](<https://devfeed.tech/articles/molt-a-toolkit-for-migrations-you-can-trust-23795.md>)

Original publisher: [Read original article](<https://cockroachlabs.com/blog/molt-migrations-you-can-trust>)

Author: Becca Weng

Published: 2026-01-21T00:00:00Z

Content type: article

Language: en

Sources: [Cockroach Labs](<https://devfeed.tech/sources/cockroach-labs.md>)

Topics: [migration](<https://devfeed.tech/topics/migration.md>), [CockroachDB](<https://devfeed.tech/topics/cockroachdb.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [Replication](<https://devfeed.tech/topics/replication.md>), [Scalability](<https://devfeed.tech/topics/scalability.md>), [Parsing](<https://devfeed.tech/topics/parsing.md>)

Tags: [cockroachdb](<https://devfeed.tech/tags/cockroachdb.md>), [database](<https://devfeed.tech/tags/database.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [insights](<https://devfeed.tech/tags/insights.md>), [migrations](<https://devfeed.tech/tags/migrations.md>), [mysql](<https://devfeed.tech/tags/mysql.md>), [oracle](<https://devfeed.tech/tags/oracle.md>), [postgres](<https://devfeed.tech/tags/postgres.md>), [scalability](<https://devfeed.tech/tags/scalability.md>), [sql-server](<https://devfeed.tech/tags/sql-server.md>), [tools](<https://devfeed.tech/tags/tools.md>)

## AI overview

This article presents Cockroach Labs' MOLT toolkit for migrating databases to CockroachDB. It describes schema conversion, bulk data transfer, verification, and live replication as parts of a modular migration workflow.

## Source excerpt

Migrating a database is always a high-stakes operation. Downtime, data correctness, data loss, and customer experience are all on the line. Not to mention the business risk if a migration goes poorly. While there are a number of third-party tools that support data migration to CockroachDB, we have the expertise and insights into our product. We knew we could make migrations as efficient as possible in-house.