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Comparison

MariaDB.org vs PostgreSQL

MariaDB.org lands on Depends, and PostgreSQL lands on Worth it.

MariaDB.org

Depends
Confidence: High

Use it if you have technical staff who can run, patch, and back up an open-source database and you want MySQL compatibility at zero license cost.

PostgreSQL

Worth it
Confidence: High

Buy if your team can write SQL and own database operations . it is free, powerful, and proven at massive scale.

MariaDB.org versus PostgreSQL
CompareMariaDB.orgPostgreSQL
VerdictDependsWorth it
Best forEngineering/DevOps teams with database administration skills who want no license feesEngineering teams with SQL skills
Who it's not forNon-technical founders and small businesses tracking customers, contacts, or inventory . this is a server database that requires setup, patching, and backups; use a spreadsheet or a simple SaaS tool insteadNon-technical teams that just need a shared spreadsheet
PrivacyMariaDB is mature and the Foundation maintains a published security policy aimed at fixing critical bugs quickly, but the record shows a steady stream of CVEs . including multiple remote-code-execution vulnerabilities . and community edition users are responsible for their own patching cadence.Mature and actively patched . but 2025-2026 brought real CVEs, including one exploited in the wild.
Public sentimentUsers broadly like it: G2 and Capterra reviewers praise performance, security, and ease of use, Software Advice reviewers call it faster than MySQL, and Reddit users report it benchmarked ~20% faster than competing databases.³Developers consistently praise Postgres as robust, fast, and the default relational choice; the friction is operations, not the engine.
Biggest gotchaCommunity edition users must track and apply security fixes themselves . multiple remote-code-execution CVEs have affected MariaDB over the years, and falling behind on versions is a genuine breach riskCVE-2025-1094 saw real-world exploitation; patching discipline is mandatory.

Pick MariaDB.org when

  • Engineering/DevOps teams with database administration skills who want no license fees
  • Teams migrating off MySQL for licensing reasons . reviewers cite licensing as a top reason people choose MariaDB (https://builder.ai2sql.io/blog/mysql-vs-mariadb)
  • Web app backends, since MariaDB Server ships with most Linux distros (https://mariadb.org/en)
  • Organizations with MySQL-compatible applications that need a production-grade, battle-tested database . users describe it as 'not a toy' and fully production-ready (https://www.reddit.com/r/Database/comments/1oqs22a/mariadb_vs_postgresql_understanding_the)

When MariaDB.org is not a fit

  • Non-technical founders and small businesses tracking customers, contacts, or inventory . this is a server database that requires setup, patching, and backups; use a spreadsheet or a simple SaaS tool instead
  • Solo developers and side projects . running your own community database server (and owning its CVE patching) is overkill; SQLite or a free-tier managed Postgres is simpler
  • Buyers who want a vendor to call when things break at 2 a.m. without paying for MariaDB PLC's enterprise contracts . the free community edition comes with no support SLA
  • Greenfield teams with no MySQL legacy . adopting MariaDB means inheriting MySQL-lineage tradeoffs and a fork that has diverged from upstream; if you have no compatibility requirement, evaluate Postgres first

Pick PostgreSQL when

  • Engineering teams with SQL skills
  • High-growth apps needing serious scale
  • Companies fleeing Oracle license costs
  • Cost-conscious startups

When PostgreSQL is not a fit

  • Non-technical teams that just need a shared spreadsheet
  • Solo users tracking contacts or small lists
  • Companies with no DBA and no managed-hosting budget
  • Buyers expecting vendor SLA support out of the box

Sources

  1. official
  2. MariaDB in briefmariadb.org
    official
  3. review
  4. review
  5. review
  6. review
  7. review
  8. security
  9. security
  10. security
  11. security
  12. official
  13. news
  14. news
  15. MariaDB . Wikipediaen.wikipedia.org
    news
  16. news