Atlas vs dbmate

Atlas is a language-independent tool for managing database schemas and migrations through declarative, versioned workflows. It compares a database's current state with a desired schema expressed in HCL, SQL, or an ORM format, then can generate and execute a migration plan. Teams can lint and validate migrations, run safety checks, and test schemas and migrations. The open version supports PostgreSQL, MySQL, MariaDB, SQLite, TiDB, and LibSQL; Pro adds drivers including SQL Server, Oracle, Snowflake, and Databricks. Atlas describes its core engine as open source under Apache 2.0, with advanced features in proprietary versions. Integrations include Kubernetes, Terraform, GitHub Actions, GitLab CI, CircleCI, Bitbucket Pipelines, Azure DevOps, and a Go SDK. Starter is free. Atlas Pro costs $9 per developer per month, plus usage-based pricing for CI/CD pipelines and databases; new users can try Pro for 30 days. Schema Monitoring costs $39 per monitored database per month. Enterprise pricing is custom.

dbmate is a free, open-source command-line tool for keeping database schemas in sync across developers and production servers. It works independently of application language and can be used with Go, Node.js, Python, Ruby, PHP, Rust, C++, and other languages or frameworks. Migrations are plain SQL in timestamp-versioned files. Commands create, apply, and roll back migrations, check status, dump or load a schema, and wait for a database server. The project lists MySQL, MariaDB, PostgreSQL, SQLite, and ClickHouse, and documents BigQuery connections and Spanner support for databases using the PostgreSQL dialect. Migrations run atomically in a transaction by default when the database supports transactions, though individual migration blocks can opt out. dbmate can maintain a schema.sql dump for source-control review and Git diffs; creating dumps relies on database client tools such as pg_dump, mysqldump, or sqlite3. It reads DATABASE_URL by default and can load environment variables from a .env file. Installation options include NPM, Homebrew, Scoop, a Linux binary, and Docker images. Go applications can use it as a library, and Go embed can package migrations into an application binary.