MariaDB is an open-source relational database management system (RDBMS) and a drop-in replacement for MySQL.
MariaDB stores and manages structured data using SQL, just like MySQL—but it’s developed independently with a strong open-source focus.
Why MariaDB exists
- Created by the original MySQL developers
- Forked after Oracle acquired MySQL
- Goal: keep the database fully open-source and community-driven
Key characteristics
- ✅ Compatible with MySQL
- Same SQL syntax
- Same APIs
- Same client tools
- ⚡ Often faster than MySQL for many workloads
- 🔐 More open features (advanced engines, performance tools)
- 🧩 Multiple storage engines (InnoDB, Aria, ColumnStore, etc.)
Example
If an app works with MySQL:
SELECT * FROM users;
…it will work the same in MariaDB.
You can usually:
- Stop MySQL
- Install MariaDB
- Start MariaDB
➡️ No code changes needed
MariaDB vs MySQL (quick compare)
| Feature | MariaDB | MySQL |
|---|---|---|
| License | Fully open-source | Partly Oracle-controlled |
| Performance | Often faster | Stable, widely used |
| Community | Very strong | More corporate |
| Drop-in replacement | Yes | — |
Where MariaDB is used
- Default database on many Linux distros (Ubuntu, Debian, CentOS)
- Common with WordPress, WooCommerce, Laravel
- Used in high-traffic production systems
How it fits in the stack
Modern LAMP/LEMP stack often looks like: