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AI2sql

Schema-aware text-to-SQL that also explains, fixes, optimises and formats existing queries across 10 dialects

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paidStart is $9/month for 100 SQL queries and a 10-table limit with SQL Server, MySQL and PostgreSQL support. Pro is $24/month for 300 queries and 50 tables, adding Oracle, MongoDB and BigQuery connectors. Business is $39/month for 1,000 queries with unlimited tables, adding MariaDB, Redshift and SnowSQL, API integration and a desktop app. All three include a 7-day free trial and are billed monthly with cancel-anytime. Enterprise is quoted on request and adds API access, fine-tunes, custom model training and an on-premise option.View full pricing →

About AI2sql

AI2sql is a text-to-SQL assistant aimed at the analyst or founder who knows exactly what question they want answered but not the dialect quirks needed to answer it. You describe the query in plain English and it returns SQL, but the product is broader than generation alone: it also explains an existing query line by line, fixes errors in a query that will not run, optimises one that runs too slowly, and formats messy SQL into something reviewable. A separate CSV mode lets you upload a spreadsheet and ask questions against it without setting up a database at all, and a data-insight generator suggests angles of analysis when you are not sure what to look for yet. The important design choice is that AI2sql is schema-aware and read-only by default — it reads your table structure so generated SQL references real columns rather than plausible-sounding invented ones, and it will not mutate data unless you take it out of that mode. Dialect coverage widens with the plan: SQL Server, MySQL and PostgreSQL on the entry tier, then Oracle, MongoDB and BigQuery, then MariaDB, Redshift and SnowSQL. Extras that show up across tiers include ER diagram generation, a spreadsheet formula generator, and a desktop app on the top self-serve plan.

Key Features

Natural-language to SQL with schema awareness so columns are real, not invented
Explain, fix and optimise existing SQL queries
SQL formatter for messy or inherited queries
CSV upload mode — ask questions without connecting a database
ER diagram generation from your schema
Read-only by default to prevent accidental mutations
Ten database dialects across the plan tiers

AI2sql Pros & Cons

Pros

  • +Read-only-by-default plus schema awareness is the combination that makes generated SQL safe to run
  • +Covers the whole query lifecycle — write, explain, debug, optimise, format — not just generation
  • +$9 entry price is unusually low for a database tool
  • +CSV mode removes the setup barrier for one-off questions

⚠️ Cons

  • Query counts are metered, so heavy exploratory work pushes you up the tiers quickly
  • Table limits on the lower plans rule out wide warehouse schemas
  • The newer dialects sit behind the mid and upper tiers

Tags

text-to-sqlsqldatabasequery-optimizationcsver-diagrams
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