What EverSQL is
EverSQL is a database performance optimisation tool. The site describes PostgreSQL and MySQL query optimisation with an AI-powered DBA framing: queries are analysed, rewritten and explained with performance insight.
What you can do with it
- Submit a slow query and get an optimised version
- See why the query is slow
- Get index and rewrite suggestions
- Review performance before release
Who it is for
- Backend engineers
- DBAs and data engineers
- Teams carrying slow reporting queries
What to watch out for
- Optimised queries must be tested against real data volumes before production
- Index suggestions carry write-cost and storage trade-offs
- Sending queries and schema information to a hosted service needs a data handling decision
- An automatic rewrite can change results if the semantics are subtly different
Pros & cons
✓ What we like
- Focused on query performance
- Works on two common databases
- Explains as well as rewrites
! What to watch out for
- Changes need testing
- Index trade-offs to weigh
- Schema exposure decision
FAQ
Which databases does it cover?
PostgreSQL and MySQL are named on the site.
Can I apply the rewrite directly?
Test it first against realistic data before production.
Does it explain the problem?
Yes. Performance insight is part of the offering.
Last reviewed: 2026-09-17
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