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MySQL is a database platform whose licensing and production costs depend on the edition and server size. Replacing it means choosing between different operating models: a self-hosted SQL database, managed Postgres, document storage or in-process analytics. For a SQL-to-SQL evaluation, start with PostgreSQL, Neon or Firebird. MongoDB, ClickHouse and DuckDB fit different data shapes and workloads, so they are not direct replacements for every MySQL application.
01Why people leave MySQL
Edition-dependent production costs
MySQL's production costs and licensing depend on its edition and server size. Confirm the terms and expected bill for your deployment before budgeting.
Concerns about Oracle ownership
In Reddit threads, some developers cite Oracle ownership as a reason to prefer PostgreSQL or other alternatives; others say they have no issue with MySQL.
Reported feature friction
Some Reddit commenters describe MySQL as a series of small feature gaps. Treat those reports as prompts to check the specific SQL behavior your application depends on.
02The alternatives, ranked by fit
- Self-hosted SQL
PostgreSQLPostgreSQLPostgreSQL is a free, open-source database with no published usage limits, making it a fit when you want to control hosting rather than pay for a managed service. Reddit developers often name it as a MySQL alternative. Review schema, queries and application behavior before migrating; switching database engines does not guarantee MySQL compatibility.
Trade-off: Your team is responsible for hosting and operations.
8.4/10from
Freefree plan - Managed Postgres
NeonNeonNeon pairs managed Postgres with branching and backend services, which suits projects that need isolated preview databases. The listed starting price is $15, with a free plan; paid bills depend on usage. Check the plan and expected workload against your budget, and validate MySQL-specific SQL and application assumptions during migration.
Trade-off: Managed-service pricing depends on usage.
7.6/10from
$15/mofree plan - Free self-hosted SQL
FirebirdFirebirdFirebird is a free, self-hostable SQL database for teams that want to avoid a database license fee and operate their own server. The listed paid server-management plans start at $575 per month. Its entry calls out Firebird-compatible drivers, so check that your language and application stack has a driver before planning a migration.
Trade-off: Paid server-management plans start at $575/month.
7.2/10from
$575/mofree plan - Document-shaped data
MongoDBMongoDBMongoDB is a document database with cloud and self-managed deployment options. Choose it when your application is built around document-shaped data, rather than moving a relational MySQL schema over by default. The listed starting price is $8 with a free plan; estimate production costs for your chosen deployment before committing.
Trade-off: A document model may require reshaping relational data.
7.2/10from
$8/mofree plan - Large-scale analytics
ClickHouseClickHouseClickHouse is for real-time SQL analytics over large datasets, not a default replacement for an application's transactional MySQL database. It suits teams prepared to own the data model and database operations. The listed starting price is n/a, so confirm costs for your deployment before treating it as a cheaper option.
Trade-off: Your team owns data modeling and operations.
8.3/10from
Custom - In-process analytics
DuckDBDuckDBDuckDB brings analytical SQL into an application and supports local data wrangling and pipelines using open data formats. It has a free plan and no database license fee, which fits analytical workloads where a separate database server is not the goal. Check that an in-process analytics database matches your application's serving needs.
Trade-off: It targets in-process analytics, not every application workload.
8.5/10from
Freefree plan
03Side by side
| Tool | Score | From | Free plan | Best for |
|---|---|---|---|---|
 MySQL MySQL (current) | 7.3 | $178.33/mo | Yes | Applications already built on MySQL |
| PostgreSQL PostgreSQL | 8.4 | Free | Yes | Teams that want open-source database software |
| Neon Neon | 7.6 | $15/mo | Yes | Apps needing managed Postgres |
| Firebird Firebird | 7.2 | $575/mo | Yes | Teams needing a self-hosted SQL database |
| MongoDB MongoDB | 7.2 | $8/mo | Yes | Apps built around document-shaped data |
| ClickHouse ClickHouse | 8.3 | Custom | No | Real-time analytics on large datasets |
| DuckDB DuckDB | 8.5 | Free | Yes | Local SQL analytics and data wrangling |
Questions people ask
What are some databases similar to MySQL?
For a SQL-to-SQL evaluation, consider PostgreSQL, Neon or Firebird. PostgreSQL and Firebird are database options; Neon provides managed Postgres. MongoDB is a document database, while ClickHouse and DuckDB target analytics, so they fit different workloads rather than acting as direct relational replacements.
Is MySQL still free to use?
MySQL has a GPL database option, but licensing and production costs depend on the edition and server size. The listed starting price is $178.33 with a free plan. Check the terms for the edition and deployment you plan to use before relying on a free option in production.
What are the 7 types of databases?
There is no single seven-type list that applies to every database comparison. For choosing a MySQL alternative, start with workload: PostgreSQL, Neon and Firebird are SQL database options; MongoDB is document-oriented; ClickHouse and DuckDB target analytics. Those differences matter more than fitting products into a fixed count.