Best AI SQL Generators in 2026
Updated
In short: Outerbase AI is ranked #1 of 19 as of 4 October 2026, ahead of NatureQuery and QueryPlane. The best-ranked option with a free plan is NatureQuery. The lowest first paid tier on this page is SQLAI.ai at $4/mo.
When you need SQL from a data question, AI SQL generators can differ in the databases and query workflows they support. Compare SQL dialects and database connections, then look for schema context, query explanations, and optimization features. Deployment options and free-plan or paid-from details are also useful points to weigh. Outerbase AI, NatureQuery, and QueryPlane appear among the first entries, with SQL Mocker and Vanna AI also near the top. Check the listed capabilities against your database environment and the kind of query assistance you need.
19 AI SQL generators ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
6 of the 19 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Outerbase AIWeb · Windows · Mac · Self-hosted · API | Three bars | — | 3 of 6 | $9/mo | 6.6 | |
| 2 | NatureQueryWeb · API | Two bars | — | 1 of 6 | $20/mo | 6.4 | |
| 3 | QueryPlaneWeb · Self-hosted | Two bars | — | 1 of 6 | $49/mo | 6.4 | |
| 4 | SQL MockerWeb | Two bars | — | 1 of 6 | $10/mo | 6.4 | |
| 5 | Wren AIWeb · Self-hosted · API | Two bars | — | 1 of 6 | $179/mo | 6.4 | |
| 6 | Text2SQL.aiWeb · Windows · Mac · Linux · API | Two bars | — | — | 4 of 6 | — | 5.6 |
| 7 | Vanna AIWeb · Self-hosted · API | One bar | — | — | 1 of 6 | $50/mo | 5.4 |
| 8 | DataheraldWeb · Self-hosted · API | No signal | — | — | 1 of 6 | — | 5.1 |
| 9 | IDERA AI SQL Query GeneratorWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 10 | mnemiqWeb · Self-hosted · API | One bar | — | 1 of 6 | Free | 5.1 | |
| 11 | Natural Language SQLWeb · Mac · Linux · Self-hosted | One bar | — | — | 3 of 6 | — | 5.1 |
| 12 | Savvina AIWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 13 | SQLAI.aiWeb · API | One bar | — | — | 1 of 6 | $4/mo | 5.1 |
| 14 | SQLerWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 15 | BasedashWeb · Self-hosted · API | One bar | — | — | 1 of 6 | $1,000/mo | 5.0 |
| 16 | ChionWeb | One bar | — | — | 1 of 6 | $29/mo | 5.0 |
| 17 | Seek AIWeb | No signal | — | — | 1 of 6 | — | 5.0 |
| 18 | AgentsqlWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 19 | QueryraWeb | No signal | — | — | 1 of 6 | — | 4.7 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which AI SQL generator is ranked first on Freedom251?
Outerbase AI is ranked #1 of 19 with a score of 6.6. NatureQuery is second and QueryPlane third.
How many of these have a free plan?
6 of the 19 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, SQLAI.ai has the lowest first paid tier we found: $4/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.