Software · head to head
Firebase Realtime Database vs MariaDB

Firebase Realtime Database
Software
Store and sync data in real-time across all clients
- From
- Free
- Rated
- -

MariaDB
Software
The open source relational database for the enterprise
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Firebase Realtime Database the no-cost Spark plan caps storage at 1 GB, downloads at 10 GB per month and simultaneous connections at 100; MariaDB jSON support using text fields rather than native binary type; lacks MySQL's JSON syntax and functions
- They diverge on capability: Firebase Realtime Database covers Real-time Sync, MariaDB covers MySQL Compatibility.
Where they differ
Only the attributes on which Firebase Realtime Database and MariaDB actually diverge.
| Attribute | Firebase Realtime Database | MariaDB |
|---|---|---|
| Pricing model | freemium | Unknown |
| Platforms | Web, Ios, Android | Linux, Unix, Windows, macOS |
| Founded | 2011 | 2009 |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Firebase Realtime Database
- Real-time Sync
- Offline Support
- JSON Storage
- Security Rules
- Data Validation
- Multi-platform SDKs
- Scalable
- Firebase Auth
Only in MariaDB
- MySQL Compatibility
- Aria Storage Engine
- ColumnStore
- Galera Cluster
- MaxScale
- Spider Engine
- Temporal Tables
- phpMyAdmin
What people use each for
The jobs each tool is most often brought in to do.
Firebase Realtime Database
- Syncing JSON application state between clients in real timenot MariaDB
- Backing mobile and web apps with offline capable data storagenot MariaDB
- Prototyping realtime features such as presence and chatnot MariaDB
MariaDB
- Transaction processingnot Firebase Realtime Database
- Data storagenot Firebase Realtime Database
- Application backendnot Firebase Realtime Database
- Reportingnot Firebase Realtime Database
- Data analyticsnot Firebase Realtime Database
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Firebase Realtime Database
- The no-cost Spark plan caps storage at 1 GB, downloads at 10 GB per month and simultaneous connections at 100
- The Spark plan does not support multiple databases in a project
- Even on the paid Blaze plan simultaneous connections are capped at 200,000 per database
- Billing is by data transferred out at $1 per GB plus $5 per GB stored, so chatty clients cost more than the data volume suggests
MariaDB
- JSON support using text fields rather than native binary type; lacks MySQL's JSON syntax and functions
- Galera Cluster maximum performance limited to the slowest node in cluster
- InnoDB tables limited to 1,017 columns and 64 secondary indexes
- Transaction size limits in Galera (128K rows and 2GB by default)
- Less strict SQL type checking than PostgreSQL; allows implicit conversions
Pricing, plan by plan
Firebase Realtime Database
Free- SparkFree
- 1GB storage
- 10GB/month download
- 100 simultaneous connections
- BlazeFree
- Pay as you go
- Unlimited storage
- Unlimited connections
MariaDB
FreeNo published plan breakdown. See the MariaDB review.
Which should you pick?
Choose Firebase Realtime Database if
- You need real-time sync.
- You want to start without paying.
- You work on Web, Ios, Android.
- You also want offline support.
Choose MariaDB if
- You need mysql compatibility.
- You want to start without paying.
- You work on Linux, Unix, Windows, macOS.
- You also want aria storage engine.
Questions people ask
- Is Firebase Realtime Database or MariaDB better?
- Neither clearly leads. Firebase Realtime Database starts at Free and MariaDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Firebase Realtime Database or MariaDB?
- Firebase Realtime Database starts at Free and MariaDB at Free.
- Does Firebase Realtime Database or MariaDB run on more platforms?
- Firebase Realtime Database runs on Web, Ios, Android. MariaDB runs on Linux, Unix, Windows, macOS.
- Can I use Firebase Realtime Database for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Firebase Realtime Database best used for?
- Firebase Realtime Database is most often used for syncing json application state between clients in real time, backing mobile and web apps with offline capable data storage, prototyping realtime features such as presence and chat. Of those, syncing json application state between clients in real time and backing mobile and web apps with offline capable data storage are not what MariaDB is typically brought in for.
- What can Firebase Realtime Database do that MariaDB cannot?
- Firebase Realtime Database covers Real-time Sync, Offline Support, JSON Storage, Security Rules. MariaDB covers MySQL Compatibility, Aria Storage Engine, ColumnStore, Galera Cluster.
Answered from the vendors’ own pages
MariaDB: Is MariaDB completely free and open source?
Yes. MariaDB Server is licensed under GPLv2 and guaranteed to remain perpetually free and open source, independent of any commercial entities.
SourceMariaDB: Is MariaDB backward compatible with MySQL?
Yes. MariaDB was designed as a drop-in replacement for MySQL. Every application, driver, and configuration that worked with MySQL works with MariaDB without code changes.
SourceMariaDB: What are the storage engine options in MariaDB?
MariaDB supports multiple storage engines including InnoDB (transactional, default), Aria (crash-safe, good for read-heavy workloads), and MyISAM. The Aria engine is faster than InnoDB for certain read-heavy queries and full table scans.
SourceMariaDB: How much does MariaDB cost?
MariaDB Community Server is completely free to download and use. MariaDB offers paid enterprise support and managed cloud services for organizations needing professional support.
SourceMariaDB: Does MariaDB support native JSON storage?
MariaDB stores JSON using text fields (the JSON type is an alias for LONGTEXT), not as a native binary type like MySQL does. JSON support exists but is less sophisticated than MySQL's JSON functions and syntax.
SourceMariaDB: What scaling options does MariaDB provide?
MariaDB supports both scaling up (more cores, memory, storage) and scaling out (read replication, Galera Cluster with multi-node replication). However, Galera Cluster performance cannot exceed the slowest node in the cluster.
SourceRelated pages
More on Firebase Realtime Database
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