# The best free AI database and SQL copilots Every option in the catalog for when you need to ask a question in English and get correct SQL — 4 AI database and SQL copilots, 4 of them free or freemium, with the pricing tier printed on every row. ## Stats - 4 tools listed - 4 free or freemium - 2 with no paid plan at all - 1 sub-categories covered ## FAQ ### What are the best free AI database and SQL copilots? Flocci AI Tools lists 4 of them, ordered free tiers first: Chat2DB, Vanna AI, Wren AI and Outerbase. Every one of them is free or has a free tier. Each entry states what it uniquely does rather than a score. ### Which of these are completely free? 2 on this page are marked fully free with no paid plan at all: Chat2DB and Vanna AI. The remaining 2 are freemium, trial or paid, and each is labelled with its exact tier so nothing surprises you at sign-up. ### How is this list ordered? Free tools first, then freemium, then trial, then paid, and alphabetically inside each tier. Nobody pays to appear higher: Flocci AI Tools carries no ads, no sponsored slots and no paid listings, so the order reflects price and nothing else. ## Quick picks ### Which AI database and SQL copilots work in a browser with no install? Chat2DB and Wren AI all work in a browser tab with no install needed — just open the site and go. 2 of the 4 free AI database and SQL copilots listed here are browser-based. ### Which AI database and SQL copilots let you sign in with Google? Chat2DB supports Google sign-in, so you can start without creating a new account. That's 1 of the 4 free AI database and SQL copilots on this page. ### Which AI database and SQL copilots can you self-host or run offline? Vanna AI can be self-hosted or run locally without a browser — useful for privacy, air-gapped networks, or avoiding API rate limits. 1 of the 4 free AI database and SQL copilots here run offline. ## Tools - [Chat2DB](https://aitools.flocci.in/tool/chat2db) — Free — Cross-platform database client with natural-language SQL generation and optimisation - [Vanna AI](https://aitools.flocci.in/tool/vanna-ai) — Free — Fully open-source text-to-SQL agent, self-hostable with no vendor lock-in - [Wren AI](https://aitools.flocci.in/tool/wren-ai) — Freemium — Open-core 'context engine' (public on GitHub) converts natural language to governed SQL across 20+ sources - [Outerbase](https://aitools.flocci.in/tool/outerbase) — Freemium — AI-powered database GUI with natural-language 'EZQL' querying and auto chart generation --- Source: Flocci AI Tools — https://aitools.flocci.in/best/best-ai-database-sql-copilots Facts last verified: October 2026