Overview
Relational databases store data in tables with relationships, transactions, and SQL queries, so they are the default choice for app backends, admin tools, reporting, and anything that needs consistent writes. In this group, the important differences are less about the query language and more about how the service is delivered: some products are hosted Postgres or MySQL, others are distributed SQL, and a few combine the database with deployment, auth, APIs, or visual tooling.
What to look for in managed SQL databases
A genuinely generous free tier here usually gives you enough room to build a real prototype, keep it running, and test the parts that matter in production, such as migrations, backups, branching, or team access. A token free tier often looks fine at first glance but becomes cramped once you add a second environment, a few teammates, or a normal amount of reads and writes. The most useful plans tend to make it easy to start without a credit card, while still giving you predictable behavior instead of a short-lived trial.
Watch for plans that only appear free because storage is tiny, compute pauses quickly, or the allowance is split across several counters that are easy to exhaust together. Some vendors bundle a database with hosting or a backend framework, which can be great if you want the full stack but distracting if you only need SQL storage. Others advertise unlimited users or projects while quietly limiting database size, request volume, or high-availability features that matter once your app leaves the demo stage.
Gotchas in the SQL database free tier
If you are comparing free relational databases, start by asking what you actually need the database to do on day one. A schema-design tool helps you model tables before you deploy anything. Managed SQL databases handle the live data. Backend platforms and no-code tools wrap the database in APIs, auth, or app builders, which is useful when you want less infrastructure work and a tighter workflow.
The 10 highest-FTV free relational databases tiers
| Product | Type | Free tier includes | Est. value | Card required |
|---|---|---|---|---|
| drawDBFTV 97 | Always free | Unlimited local diagrams | Unbounded | No |
| SQLableFTV 90 | Always free | Free SQL formatter, validator, and regex tools. | Unbounded | Not stated |
| Neon Serverless PostgresFTV 60 | Free tier | Includes 100 CU-hours per project monthly. | Not stated | No |
| PandaStackFTV 60 | Free tier | 1 Free Tier Database | $12 / month | No |
| AivenFTV 59 | Free tier | Always-free managed PostgreSQL, MySQL, Apache Kafka, and OpenSearch services. | $4.00 / month | No |
| NocoDB CloudFTV 59 | Free tier | 1,000 records. | $12 / month | No |
| PrismaFTV 58 | Free tier | 100,000 Prisma Postgres operations included. | Not stated | No |
| FiberyFTV 57 | Free tier | Up to 10 users included. | $6.00 / month | No |
| LeapcellFTV 56 | Free tier | Access to 20 projects, supporting Next.js, Python, Go, Rust, and more. | $5.90 / month | No |
| restdb.ioFTV 56 | Free tier | Up to 2,500 records. | $6.00 / month | No |
Best free relational databases picks by use case
Best for: Sketching table relationships before you provision anything
A browser-based schema editor is the right starting point when you want to map tables, keys, and relationships before choosing a live database. It is especially handy for teams that want to review SQL design without setting up infrastructure.
Best for: Launching a Postgres-backed app with branching and idle-friendly development
This fits teams building modern apps that need managed Postgres with flexible environments and a workflow that supports experimentation. Its free offering is attractive when you want to prototype without paying for always-on compute.
Best for: Running a small internal tool that needs a spreadsheet-like data editor
NocoDB Cloud is useful when nontechnical teammates need to edit relational data without learning SQL. It works well for lightweight operational apps where the database is only one part of the workflow.
Best for: Choosing a hosted database plus backend pieces in one setup
Nhost suits builders who want PostgreSQL alongside auth, file storage, and functions in a single stack. It reduces the number of services you need to wire together when you are moving quickly on an app with user accounts.
Best for: Building a database-centric app with a managed platform and multiple engine choices
Aiven is a good fit when you want managed open source databases and prefer a vendor that also handles infrastructure and monitoring. It works well for teams that care about operational consistency more than app-builder features.
Frequently asked questions
Is there a truly free SQL database for production use?
Yes, but the answer depends on how much traffic and storage you need. Some free tiers are intended for ongoing light use, while others are better for development, testing, or early prototypes that will outgrow the limits quickly.
What usually makes a free relational database feel limited?
The main bottlenecks are small storage, low compute, limited request volume, and missing high-availability features. Some plans also cap team access, backups, or the number of separate databases you can keep active.
Should I choose Postgres, MySQL, or distributed SQL?
Pick based on your app and team habits first. Postgres is the most common choice for new application backends, MySQL is still widely used, and distributed SQL makes more sense when you need horizontal scaling or resilience across regions.
When should I use a schema design tool instead of a hosted database?
Use a schema design tool when you are still planning tables, relationships, or migrations and do not need live data yet. Move to a hosted database once you need persistent storage, application access, and operational features like backups.
What's the catch with a free tier that includes auth or app hosting too?
Those bundles are convenient, but the database often shares limits with the rest of the platform. If your main need is SQL storage, make sure the database allowance is still enough after you account for users, builds, and runtime traffic.
Which free relational databases are easiest to start without a credit card?
Several providers in this group allow signup without a card, which lowers the barrier for a quick prototype. Even then, you should check whether the free plan is meant for long-term use or only for a narrow starter workload.
