PostgreSQL vs MySQL for Solo Developers

Quick Comparison

PostgreSQL Overview

PostgreSQL is the database that keeps surprising you with what it can do. It's a relational database at its core, but it also handles JSON documents (JSONB), full-text search, geospatial data (PostGIS), and has an extension system that lets it do almost anything. It's like getting five different databases for the price of one.

I run Postgres for every production application I build. The reliability is outstanding. I've never lost data. I've never had a corruption issue. The JSONB support means I can store flexible data alongside structured tables without needing a separate NoSQL database. Full-text search means I can handle basic search without adding Elasticsearch. These features save a solo developer from managing multiple database systems.

The managed hosting options are excellent too. Supabase gives you free Postgres with an API layer. Neon offers serverless Postgres that scales to zero. Railway and Render both include one-click Postgres. You're never stuck self-managing it.

MySQL Overview

MySQL is the world's most popular open-source database. It powers the LAMP stack, WordPress, and a huge percentage of the web. It's simple to set up, widely supported on every hosting provider, and proven at massive scale by companies like Facebook (before they forked it) and Uber.

For straightforward web applications, MySQL gets the job done. It's fast for read-heavy workloads, has excellent replication support, and virtually every hosting provider supports it. If you're building a PHP application with Laravel or working with WordPress, MySQL is the natural choice.

The simplicity is genuinely appealing. MySQL is easier to set up and tune than PostgreSQL for basic use cases. The documentation is clear, and the community is enormous. For a solo developer building a standard CRUD application, MySQL handles it without any fuss.

Key Differences

Feature depth separates these two clearly. PostgreSQL supports JSONB, full-text search, array columns, CTEs, window functions, and materialized views. MySQL has improved over the years but still lacks native array types and its JSON support is less performant than Postgres's JSONB. As a solo developer, Postgres's features mean you need fewer external tools.

Data integrity matters more than you think. PostgreSQL is stricter about data types and constraints by default. MySQL in its default configuration allows things like inserting invalid dates or silently truncating data. This means bugs that PostgreSQL catches at the database level slip through MySQL and become application-level problems. When you're the only developer, you want your database catching mistakes for you.

JSONB is a game-changer. Need to store user preferences, feature flags, or any semi-structured data? PostgreSQL's JSONB stores it with full indexing and query support. You can query inside JSON documents efficiently. With MySQL, JSON support exists but the performance and query capabilities don't match up.

Hosting and ecosystem. MySQL is available on literally every hosting provider, including the cheapest shared hosts. PostgreSQL is available on all modern platforms but might not be on legacy shared hosting. For solo developers using Railway, Render, Supabase, or any modern platform, both are equally available.

Ownership concerns. MySQL is owned by Oracle, which makes some developers nervous about the future. PostgreSQL is community-driven with no corporate owner. This is why many developers have migrated from MySQL to PostgreSQL in recent years.

By the Numbers (2026)

Numbers cut through opinion, so here is the verifiable state of both projects as of late May 2026.

Versions and release cadence. PostgreSQL ships one major version a year. The current stable is 18.4, released May 11, 2026, and the branch is supported until November 14, 2030 (the project supports each major version for five years). MySQL runs a dual track. The newest version is 9.7, an Innovation release dated April 21, 2026, while 8.4 is the long term support release most production setups still run. Note one date worth knowing if you are on the old default: MySQL 8.0 reached end of life on April 30, 2026, so a fresh MySQL project in 2026 means 8.4 LTS or the 9.x Innovation track.

Project mindshare. On GitHub the postgres/postgres mirror sits at 21,021 stars and 5,674 forks. The mysql/mysql-server repo sits at 12,267 stars and 4,276 forks. Stars are a soft signal, so pair them with the Stack Overflow Developer Survey, where the gap is hard to argue with. In the 2025 survey PostgreSQL is used by 55.6% of all respondents against MySQL's 40.5%, a roughly 15 point lead, and Postgres widened that gap year over year.

Ecosystem pull. The clearest day to day signal for a solo dev is how much the drivers get installed. The Node Postgres driver pg (currently 8.21.0) pulled 29,260,035 downloads in the week ending May 27, 2026. The MySQL driver mysql2 (currently 3.22.4) pulled 10,660,594 in the same week, and the older mysql package pulled 1,278,095. Postgres tooling is downloaded close to three times as often. That ratio matters because it predicts which database your ORM, your tutorials, and your Stack Overflow answers will assume by default.

Real Cost at Solo-Dev Scale

Both engines are free and open source, so the real money is in managed hosting. Here is what a single small production app actually costs on the popular managed paths, using each vendor's published rates. Assumed workload for a solo project: about 2 GB of stored data, one always-available primary, light steady traffic, no replicas.

The Postgres path is the cheap one because of the free tiers. Supabase gives you a managed Postgres on its Free plan at $0 with 500 MB of database storage, though free projects pause after one week of inactivity, so it suits side projects more than a live product. The moment you want an always-on database the Supabase Pro plan is $25 per month, which includes 8 GB of database storage and $10 of compute credit covering one Micro instance. For a serverless alternative, Neon's Free plan gives 0.5 GB per project and 100 compute-hours per month at $0; its usage-based Launch plan bills compute at $0.106 per CU-hour and storage at $0.35 per GB-month, so a low-traffic 2 GB app that is genuinely idle most of the day lands in the low single digits to low teens of dollars per month depending on how often the compute is awake.

The MySQL path now starts higher. The popular managed MySQL host PlanetScale removed its free tier in 2026. Its MySQL-compatible offering today is Vitess, which starts at $39 per month for the entry SKU (PS-10, a 3 node configuration), while PlanetScale's newer Postgres line starts at $5 per month. So on the host most associated with managed MySQL, the floor for a MySQL-shaped workload is $39 per month with no free option, versus $0 to $25 per month for the same app on managed Postgres.

For a solo developer, the honest read is that an always-on small app costs roughly $25 per month on managed Postgres (Supabase Pro) and at least $39 per month on managed MySQL via PlanetScale Vitess, with Neon able to push the Postgres number lower still for spiky or low-traffic workloads thanks to scale-to-zero compute. Self-hosting either on a Railway, Render, or plain VPS box flattens that difference, but the managed ecosystem has clearly tilted toward Postgres on both availability and price. Always check the current pricing pages before you commit, because these vendors change tiers often.

When to Choose PostgreSQL

• You want the most feature-rich relational database available
• You need JSONB for flexible data alongside structured tables
• You want built-in full-text search without a separate service
• You value strict data integrity and type safety
• You're using Django, Rails, or any modern framework (all prefer Postgres)

When to Choose MySQL

• You're building a WordPress site or PHP application
• Your hosting only supports MySQL (legacy shared hosting)
• You need the simplest possible database setup
• You're working with a legacy codebase that already uses MySQL
• You need proven MySQL-specific features like Group Replication

The Verdict

PostgreSQL is the better choice for solo developers in 2026. The feature set eliminates the need for separate tools (JSONB replaces a document store, full-text search replaces Elasticsearch for basic needs), the data integrity catches bugs before they reach production, and every modern framework and hosting platform supports it natively.

MySQL is fine if you're in the PHP/WordPress ecosystem, but for new projects, there's no compelling reason to choose it over Postgres. The 9/10 vs 7/10 solo dev rating reflects real-world experience. PostgreSQL does more, protects your data better, and costs the same (free). Pick Postgres and don't look back.

Sources

All figures below were checked on 2026-05-29.

• PostgreSQL version, support window, and EOL date: endoflife.date/postgresql
• PostgreSQL 18.4 release announcement (May 11, 2026): postgresql.org news
• MySQL versions, 9.7 LTS, 8.4 LTS, and 8.0 EOL date: endoflife.date/mysql
• MySQL 9.7 release notes: dev.mysql.com 9.7 release notes
• PostgreSQL GitHub stars and forks (21,021 / 5,674): github.com/postgres/postgres via api.github.com/repos/postgres/postgres
• MySQL GitHub stars and forks (12,267 / 4,276): github.com/mysql/mysql-server via api.github.com/repos/mysql/mysql-server
• Developer usage percentages (PostgreSQL 55.6%, MySQL 40.5%): Stack Overflow Developer Survey 2025, Technology
• pg weekly downloads (29,260,035, week ending 2026-05-27): api.npmjs.org/downloads/point/last-week/pg
• mysql2 weekly downloads (10,660,594, same week): api.npmjs.org/downloads/point/last-week/mysql2
• mysql weekly downloads (1,278,095, same week): api.npmjs.org/downloads/point/last-week/mysql
• pg latest version 8.21.0: registry.npmjs.org/pg/latest
• mysql2 latest version 3.22.4: registry.npmjs.org/mysql2/latest
• Supabase Free and Pro plan pricing ($25/mo, 8 GB DB, $10 compute credit, 500 MB free, 1-week pause): supabase.com/pricing
• Neon Free and Launch plan rates ($0.106/CU-hour, $0.35/GB-month, 0.5 GB and 100 CU-hours free): neon.com/pricing
• PlanetScale pricing (no free tier; Vitess MySQL-compatible from $39/mo, Postgres from $5/mo): planetscale.com/pricing