Last updated 08-14-2026
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MySQL Optimizer
MySQL Optimizer, powered by EverSQL, automatically rewrites and indexes slow PostgreSQL and MySQL queries so they run faster without a DBA on call. You paste a query, pick your database type and platform, and get an optimized version with an explanation of what changed. A non-intrusive performance sensor can also monitor your databases ongoing and flag redundant indexes or schema tweaks that cut costs.
EverSQL now runs free through Aiven after the acquisition, which is the main shift from standalone paid SaaS tools in this space. Where a human DBA might take hours to trace a slow query plan, MySQL Optimizer customers report queries running about 25 times faster within minutes of applying its suggestions. The sensor never touches sensitive row data, so it fits teams that need optimization without granting broad database access.
Over 100,000 engineers use it, including teams at Nike, Salesforce, and Bank of America. Backend developers, data engineers, and startups without a dedicated DBA get the most value when query performance is blocking releases or inflating cloud bills.
Automatically rewrites and indexes PostgreSQL and MySQL queries with AI
Customers report queries running 25X faster on average after optimization
Non-intrusive performance sensor monitors databases without accessing sensitive data
Ongoing recommendations to delete redundant indexes and cut storage costs
Free online SQL optimizer available through Aiven with no credit card required
Supports PostgreSQL and MySQL across major cloud platforms
Free SQL optimizer through Aiven after the acquisition
Automatic query rewriting saves hours of manual DBA work
Non-intrusive sensor never touches sensitive database data
Ongoing index and schema recommendations reduce cloud costs
Trusted by 100,000+ engineers including Nike and Salesforce
Now tied to the Aiven ecosystem rather than standalone SaaS
Limited to PostgreSQL and MySQL, not other database engines
Performance sensor requires installation for ongoing monitoring
Is MySQL Optimizer free to use?
Yes. EverSQL, which powers MySQL Optimizer, is now available for free on Aiven at aiven.io/tools/sql-query-optimizer. You can start optimizing SQL queries online without a credit card.
What databases does EverSQL support?
EverSQL optimizes PostgreSQL and MySQL queries. You choose your database type and platform when submitting a query, then install the performance sensor for ongoing insights.
How does EverSQL optimize SQL queries?
MySQL Optimizer uses smart algorithms to automatically rewrite and index your queries. MySQL Optimizer shows exactly what changed and why, so you can apply the optimized version directly.
Does EverSQL access my database data?
No. MySQL Optimizer is 100% non-intrusive and does not access any sensitive data in your databases. The performance sensor monitors query patterns and performance metrics only.
How much faster can EverSQL make my queries?
MySQL Optimizer customers report their queries run 25X faster on average, just minutes after getting started. One user reported a query dropping from 8.7 seconds to under 1 second.
What happened to EverSQL after the Aiven acquisition?
EverSQL joined Aiven and MySQL Optimizer is now available for free through Aiven's platform. The eversql.com site redirects users to start optimizing on Aiven.