MariaDB vs MySQL: What Is the Difference and Which to Pick?

MariaDB vs MySQL: what is the difference?

At its core, MariaDB vs MySQL comes down to two relational database servers with a shared origin that now follow different paths in ownership, licensing, features and compatibility. MariaDB is a community-driven fork. MySQL, in contrast, belongs to Oracle and ships under both the GPL and a commercial license.

So what does that mean for you? If you own a website, usually very little, because both speak the same SQL. However, if you write software, a few small but annoying details start to matter.

We are a digital marketing and web team, not a hosting company. Therefore, we base the technical statements here on official documentation and distribution notes. Also, our goal is a neutral table, not a sales pitch. By the end you will know which one to lean toward, what to watch during a migration, and which jobs belong with your hosting provider.

Where does MariaDB vs MySQL come from?

First, some background: MySQL spent years as the product of a Swedish company. Sun Microsystems then bought that company. In 2009, Oracle announced it would buy Sun, and MySQL's future became a hot topic.

Michael "Monty" Widenius, one of MySQL's original creators, and his team worried that the project's open source character could weaken. So they forked the code base and started MariaDB in 2009. The name comes from Widenius's daughter Maria, just as MySQL took its name from his other daughter, My.

Then the MariaDB Foundation followed at the end of 2012. It is a non-profit and aims to keep the project independent of any single company. In other words, a community and a foundation stand behind MariaDB.

Oracle, on the other hand, drives MySQL development. The code stays open, however, but one company sets the roadmap. That difference explains many of the licensing and release choices you will see below.

How do the licenses differ in MariaDB vs MySQL?

Both community editions arrive under GPL-family licenses. The gap, however, shows up on the commercial side.

Oracle states on its licensing page that it offers the MySQL server and client libraries under both the GPL and a commercial license. The commercial license exists for software vendors who want to embed MySQL in a product without GPL obligations. Enterprise editions and support plans also cost money.

MariaDB, by contrast, is simpler on paper. Also, its documentation says all code ships under the GPL, LGPL or BSD. It also says MariaDB has no closed source modules like those in MySQL Enterprise Edition. The sources are the MariaDB feature comparison and the MySQL licensing page.

If you run your own website or online shop, you will not feel this difference day to day. If you plan to embed a database inside a product you sell, talk to a lawyer about the license first.

Which storage engines separate MariaDB vs MySQL?

A storage engine decides how data sits on disk and how the server reads it back. In both systems, the default engine is InnoDB. Transactions, row-level locking and crash recovery come from it. Therefore, everyday web applications rest on the same foundation in both.

The differences start with the list of extra engines. The MariaDB documentation says that, besides the standard MyISAM, BLACKHOLE, CSV, MEMORY, ARCHIVE and MERGE engines, its packages also include several more:

• ColumnStore: columnar storage for analytic workloads.
• MyRocks: a compression-focused engine that suits write-heavy workloads.
• Aria: built as a more crash-safe successor to MyISAM.
• Spider and CONNECT: access to remote tables and other data sources.
• SEQUENCE, FederatedX, OQGRAPH and SphinxSE.

You do not need most of this list, because most sites use InnoDB only. For example, a typical WordPress install runs its tables on InnoDB and never touches the extra engines. Ask yourself whether you have a real need before you treat engine variety as a reason to choose.

Which features are specific to MariaDB?

The MariaDB documentation highlights several features that arrived in its own releases, so here they are. In order of appearance:

• Parallel and multi-source replication: arrived with MariaDB 10.0.
• New JSON functions: came with MariaDB 10.2.
• Oracle-compatible SEQUENCE support: arrived with MariaDB 10.3.
• System-versioned tables: let you query historical data, and began in MariaDB 10.3.
• Thread pool: helps the server handle many concurrent connections.

Do not read this list one-sidedly, however. Also, MySQL gains features with every release. For example, MySQL 8.4 is a long-term support (LTS) release, and it removes some older features.

As a result, always pin the version number when you compare. Instead of "MariaDB has it", say "this MariaDB version has it and this MySQL version does not". Otherwise you compare features from two different eras.

Why does JSON work differently in MariaDB vs MySQL?

JSON is one of the best-known points where the two systems part ways. MySQL offers a dedicated JSON data type and stores the data in its own binary format. That format, in other words, aims at fast access to fields inside a document.

The MariaDB documentation says plainly that it takes another route. MariaDB follows the SQL standard and stores JSON as ordinary TEXT or BLOB. JSON functions still exist, so your queries still run.

This has three practical results:

• When you move a table with JSON columns between systems, you must test it.
• Check whether your application depends on MySQL-specific JSON functions.
• Index and validation behavior on JSON columns can change from version to version.

If your application only keeps JSON as a simple settings field, you will probably not notice. If your software runs heavy JSON queries, try a small experiment first. In that experiment, check both the correctness of results and the query times.

Is MariaDB a drop-in replacement for MySQL?

The short answer: it used to be, but today it is not always. The compatibility page in the MariaDB documentation shows that ease of switching shrinks with newer versions.

Also, the same page underlines two shared points. First, MariaDB data files are generally binary compatible with the equivalent MySQL version. Second, the MariaDB client protocol is binary compatible with the MySQL client protocol. Therefore, client libraries in PHP, Python or Node.js usually connect to either server. In practice you rarely need to change the connection string in your application code.

Protocol compatibility does not mean every feature behaves the same, though. Instead, remember that connecting is one thing, and moving a schema without surprises is another. The table in the next section summarizes which version pairs match.

Which MariaDB version matches which MySQL version?

The official MariaDB compatibility page summarizes version pairing like this. We built the table for a quick read, so check the source for details:

The last row matters most. The MariaDB documentation says, in other words, that implementation differences keep growing from 10.6 onward. Consequently, "MariaDB is a one-to-one copy of MySQL" was true for old versions and is no longer true for new ones.

Source: the MariaDB vs MySQL compatibility document.

What authentication and replication gaps should you know?

The compatibility page also lists a few concrete spots that can trip up a migration. All of them describe older version pairs, but the logic still applies today:

• GTID: MariaDB's GTID implementation does not work with MySQL 5.6. So MySQL 5.6 cannot act as a replica of MariaDB 10.0.
• Passwords: users created with MySQL's SHA256 password algorithm cannot log in on MariaDB 10.0.
• Group replication: MySQL 5.7 group replication does not work with MariaDB's Galera cluster.
• Views and temporal data: you may need to recreate view definitions or check temporal data formats.

In addition, MySQL 8.4 no longer enables the mysql_native_password plugin by default. According to the official documentation, you must start the server with a specific option to turn it back on. If an old application depends on that plugin, then you may see connection errors.

For this reason, put authentication near the top of your pre-migration test list.

Which one comes with cPanel and shared hosting?

However, there is no single universal answer. Your hosting provider installs one of them, and your account uses it. Some providers offer MariaDB, others MySQL. Sometimes the panel says "MySQL" while MariaDB runs underneath, because the two share client commands and the same protocol.

Finding out, however, is easy. The phpMyAdmin start screen shows the server type and version. Alternatively, you can run this query:

SELECT VERSION(), @@version_comment;

If the output mentions MariaDB, it is MariaDB. When you pick a host, it also pays to ask about the database version and its support schedule. We cover the full selection criteria in how to choose web hosting. If you want to see who runs a server or where it sits, our IP lookup tool helps.

Which suits WordPress and online shops better?

WordPress's official requirements name MySQL and MariaDB together. Popular frameworks such as Laravel also support both. So the database choice alone does not decide success on these platforms.

In practice the decision plays out like this:

• Shared hosting: the choice is the provider's, not yours. Check that the version is current.
• Your own VPS: the default in your distribution's package repository usually causes the least trouble.
• Product or plugin development: test on both, so you can run on your audience's hosting.

On an online shop, however, the real risk is not the engine. It is backups and slow queries. For example, a missing index on the orders table slows the cart no matter which engine you pick. We explain how page speed affects sales in does page speed affect ecommerce sales. Campaign periods expose these weak spots quickly, because traffic jumps.

If your web project needs an infrastructure decision, we help through our web design service and our custom software development service.

Does MariaDB vs MySQL change performance?

It can, but naming a universal winner would mislead you. Performance depends on the version, the configuration, the hardware, the schema and the queries. Most claims of the form "this engine is X percent faster" apply to one workload and specific versions.

That is why we give no numbers, and because the documentation gives none either, we will not guess. The official documentation does not offer a general figure either. A benchmark result also depends on dozens of variables, from hardware to network latency. We suggest this order instead:

1. First, turn on the slow query log and find the heaviest queries.
2. Then add the right indexes for those queries.
3. Next, consider a caching layer.
4. Last, evaluate an engine or version change, and measure it.

Steps 1 and 2 often deliver far more than switching engines, because slowness usually comes from bad queries, not from the engine itself. A single index can cut a query from seconds to milliseconds. For caching, read how caching works with Redis and Memcached. For the link between speed and rankings, see how site speed affects SEO.

How do security and update policies compare?

Both projects publish regular security patches. However, the release models differ. The real difference is the release model and the support calendar. Oracle, for example, marks MySQL 8.4 as an LTS release. MariaDB also has long-term support releases, but you should check its calendar on MariaDB's own pages.

We give no dates or version counts here, because support calendars change. Instead, we use the phrase "current stable release".

Security depends more on maintenance discipline than on the engine name. An unpatched MariaDB is as risky as an unpatched MySQL. These habits matter more than the choice:

• Do not keep an out-of-support version in production.
• Give database users only the privileges they need.
• Do not expose the database port to the internet.
• Do not neglect input validation in your application.

Also, most attacks on databases come through flaws in application code. We cover that in OWASP Top 10 web security vulnerabilities and prevention.

How do you migrate between MariaDB and MySQL?

First, a migration is not a copy and paste job. The order below is a general checklist that follows the logic of the official compatibility notes:

1. Take a full backup. Store it elsewhere, then try one restore.
2. Pin the versions. Write down the source and target versions, then check the compatibility table.
3. Build a staging environment. Run your application against a copy of production data.
4. Check users and plugins. Confirm the authentication method.
5. Test JSON, view and temporal columns.
6. Plan replication separately. GTID and cluster setups differ.
7. Run the upgrade tool after the switch. The documentation says it updates the privilege and event tables with the new fields.

A typical logical backup looks like this. The user and database names are examples:

mysqldump --single-transaction --routines --events -u example_user -p example_db > example_db.sql
mysql -u example_user -p example_db < example_db.sql

Newer releases may also ship these tools under mariadb- prefixed names. Therefore, check the documentation for your own version. For the full backup picture, see our website backup strategy guide.

Why do command names get confusing?

Older guides show commands such as mysql, mysqldump and mysql_upgrade. MariaDB kept those names for a long time, because compatibility mattered. In newer releases the mariadb prefixed versions come to the front. Which name works on your server depends on the distribution and the version.

This causes two kinds of confusion. First, you may copy a command from a guide and get "command not found". Second, the same command may behave slightly differently on the two systems.

We suggest these habits:

• Before you run a command, check what it is with --version or --help.
• Check which version the guide targets.
• If you are unsure, confirm the command name in the official documentation for your version.

The MySQL 8.4 documentation says the mysql_upgrade tool is gone in that release. So an upgrade step from an old guide may not work on a new MySQL version. In short, a version difference means a command difference.

What should you test after a migration?

When the migration ends, "the site opens" is not enough. Also, database problems often show up quietly, on one page or in one action. Therefore, prepare a short but systematic test list.

Repeat the tests right after the switch and again a few days later. Also keep the old server for a while, so you can roll back if something breaks. Pick a low-traffic hour for the switch, because downtime risk is real.

How do you tell which one your server runs?

If you manage your own VPS or have access to your hosting panel, you can find out in three ways:

• SQL query: if SELECT VERSION(); mentions MariaDB, the server is MariaDB.
• Version comment: SELECT @@version_comment; shows the description from your distribution.
• phpMyAdmin: the start screen lists the server type and version.

You can also check from the command line:

mysql --version

On newer distributions this command may work even when MariaDB runs underneath, because distributions keep the old command names for compatibility. Read the text in the output.

Note the version and share it when you write to support. That makes it much faster to explain a problem and get an answer. If you see MariaDB on your server, do not panic. It is very common in hosting and perfectly normal.

These checks only read data and do no harm. Still, make sure you have the right to run commands on a server before you do.

Do managed database services change the choice?

Cloud providers and some hosting companies offer managed services that run the database for you. In those services, the provider takes care of upgrades, backups and patches. So the question "which engine should I install" becomes "which engine do they offer and which version do they support".

Also, providers often offer more than one option. However, which versions they offer and how long they support them differs by provider. Confirm that on your provider's official page, because we do not list them one by one.

Cost deserves a sober look too. On shared hosting, the database engine is not a separate line item. Disk, CPU, memory and support quality set the price. If you want a commercial license or enterprise support, check current prices on the vendors' official pages.

The advantage of a managed service is that experts handle the risky jobs. The drawback, however, is less freedom in configuration. For a single company site or a small blog, running your own database is often unnecessary work. Hand that job to people who know the infrastructure, and focus on your business.

Does the choice decide privacy compliance?

No, because the choice alone does not decide it. Regulations such as GDPR look at how you handle personal data, not at the engine name. Both MariaDB and MySQL support access control, encrypted connections and backups when configured properly.

These questions matter more:

• Who can reach the database, and are their privileges wider than needed?
• Where do backups sit, and who can access them?
• Is the connection between the application and the database encrypted?
• Do you really need to store that personal data at all?

Therefore, the answers matter far more than the engine choice. If your site stores customer data, work with a legal adviser and your infrastructure provider. We do not give legal opinions. We only explain the technical background.

When should you choose MariaDB vs MySQL?

So the table below is a decision aid, not an absolute rule. Base your choice on your own needs and on what your hosting provider offers.

The most honest takeaway: do not replace a working system just because of fashion. Instead, you need a concrete reason to migrate. For instance, a migration makes sense if your host retires an old version or if you need a feature that only one of them offers.

What myths about MariaDB vs MySQL come up most?

However, several wrong beliefs circulate in forums. Let us correct them one by one:

• "MariaDB always replaces MySQL as is." Only on old versions, and only in a limited way. On newer versions the differences grow.
• "MariaDB is always faster." There is no universal speed champion. You measure with your own workload.
• "MySQL is no longer open source." The MySQL community edition ships under GPLv2. The commercial license is an extra option.
• "The SQL is exactly the same." Most queries run, but functions and data types can drift apart.
• "If I change engines, my site gets faster." Instead, on most sites the real problem is missing indexes, heavy queries and a lack of caching.

Wrong beliefs mostly survive from old version knowledge. A sentence that was true four or five years ago can be false today. Therefore, verify every claim against the official documentation for your own version.

When should you leave it to your hosting provider?

Some jobs you can do with a command, but still, you do not have to. Hand the job to your hosting provider or an experienced system administrator in these cases:

• You want to change the database version on shared hosting. You will not have the rights anyway.
• You plan to move a live online shop database without a backup.
• The task involves replication, clusters or high availability.
• You have never edited server configuration files before.
• You have no rollback plan and no staging environment.

If you experiment on your own VPS to learn, great. Also, it is one of the best ways to build skill. Take a snapshot first, though, and do not play with production data. We do not offer hosting, so we do not perform server work for you. On the application and web side, however, we are with you.

Where should you start learning?

The strongest foundation in database work is SQL. Both systems also share the language to a large extent. Once you know SQL, you can do the basic jobs on whichever engine you meet.

We suggest this order:

• First, learn SELECT, JOIN, GROUP BY and how indexes work.
• Then build your own sample database in a test environment.
• After that, try a backup and a restore once.
• Finally, read the version differences in the official documentation.

For SQL, our roadmap to learn SQL from scratch to advanced is a good start. If you prepare for interviews, see SQL interview questions and query scenarios. To spin up a test environment fast, our guide on what Docker is explains the container idea.

What is the short version of MariaDB vs MySQL?

In short, MariaDB vs MySQL is a story of history, licensing, extra features and growing compatibility gaps. The basic SQL and the client protocol are shared, so most websites run on either.

Ask yourself three questions before you decide:

• Which one does my hosting provider offer, and is that version still supported?
• Which one does my application officially support?
• Do I have a concrete reason to migrate?

If you cannot answer all three clearly, leave the working system alone. Instead, take your backups, keep your version current and clean up slow queries. Therefore, those three steps make far more difference than the engine choice. In a sibling article, we also cover MySQL installation separately.