Best AI SQL generators in 2026
Six tools that turn plain English into SQL, compared honestly on what actually matters: whether you can use them free, whether they need an account, whether they respect your real table names, and whether they warn you before a risky update.
Try SQLGenie freeSide-by-side comparison
| Tool | Free use | Signup | Uses your schema | Fixes broken SQL | Safety check |
|---|---|---|---|---|---|
| SQLGenie | Yes, unlimited | No account | Yes — pasted schema | Yes, with explanation | Row-count check query |
| AI2sql | Limited trial | Account required | Partial | Yes | No |
| SQLAI.ai | Limited credits | Account required | Yes | Yes | No |
| Text2SQL.ai | Limited credits | Account required | Yes | Partial | No |
| Vanna AI | Open source, self-hosted | Setup required | Yes — live connection | No | No |
| BlazeSQL | Limited trial | Account required | Yes — live connection | Partial | No |
Based on each tool's publicly documented features at the time of writing. Pricing and free limits change often — check the vendor before you commit.
Which one should you pick?
Best free option with no signup — SQLGenie
Paste your table layout, describe what you need, and get a query back straight away. Nothing to install, no account, and nothing is stored. It also fixes broken SQL, explains what a query does, and builds a row-count check before you run an UPDATE or DELETE.
Best if you want a full paid product — AI2sql
A long-running commercial tool with a polished dashboard and team features. The free tier is a short trial, so it suits teams with a budget rather than one-off use.
Best for many small generators — SQLAI.ai
Offers a lot of separate generators (optimizer, validator, converter). Useful if you want a specific single-purpose page, though it runs on credits after signup.
Best for connecting a real database — Vanna AI
Open source and connects directly to your database, so it can read the real schema. It needs technical setup and hosting, so it is for developers, not quick lookups.
Best for team dashboards — BlazeSQL
Aimed at analysts who want a workspace around their queries and saved connections. More setup and cost than a paste-and-go tool.
Frequently asked
What is the best free AI SQL generator?
SQLGenie is free with no account and no usage credits. You paste your table layout, describe the result you want in plain English, and get a query matched to your table and column names, plus an explanation of what it does.
Do these tools connect to my database?
Most, including SQLGenie, do not. You paste your table layout as text and the tool writes SQL against it. Vanna AI and BlazeSQL can connect to a live database, which gives them the real schema but needs setup and access permissions.
Which databases are supported?
SQLGenie covers PostgreSQL, MySQL, SQL Server, SQLite, Oracle, Snowflake and BigQuery — pick the one you use so the syntax matches. Most other tools cover a similar list.
Is it safe to run AI-generated SQL?
Always read it first. For UPDATE and DELETE, SQLGenie also generates a matching SELECT COUNT(*) so you can see how many rows would be affected before you change anything.
Write your first query in seconds
No account, no credits, nothing stored. Paste your table layout, describe what you need, and SQLGenie writes the query.