EverSQL - AI-Powered SQL Query Optimization
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EverSQL Brief overview
EverSQL is an AI-powered SQL optimization tool designed to speed up PostgreSQL and MySQL databases and cut infrastructure costs. It works like an automated database expert (DBA): you paste in a slow SQL query, and the tool analyzes it, rewrites it in a faster form, and suggests indexes to improve performance.
According to the product site, EverSQL is used by more than 100,000 engineers worldwide, with customers reporting up to 25× faster query performance and saving around 140 developer hours per week on manual tuning. It is non-intrusive: it relies on query text and metadata rather than reading your sensitive data. EverSQL was acquired by Aiven, and its optimization engine now powers Aiven’s SQL Query Optimizer and AI Database Optimizer products.
How to use EverSQL
- Open the online optimizer
Go to eversql.com and follow the link to the free SQL Optimizer (now hosted by Aiven). - Choose your database
Select your database type (PostgreSQL or MySQL) and version. - Paste your SQL query
Paste in the query that is slow or resource-heavy, then submit it for optimization. - Review the recommendations
The tool returns:- An optimized version of your query
- Index recommendations
- Explanations of what changed and why
- Apply changes in your database
Test the suggested query and indexes in a staging/non-production environment, then roll out to production once you are satisfied with the improvements. - Optional: install the performance sensor / Aiven AI Database Optimizer
For ongoing monitoring and automated insights, you can integrate the EverSQL engine via Aiven’s AI Database Optimizer, which continuously analyzes workloads and suggests improvements.
Key features and functions
- Automatic SQL query optimization
Uses AI-based algorithms to rewrite inefficient SQL into more performant versions for PostgreSQL and MySQL. - Automatic indexing
Suggests new indexes (or removal of redundant ones) to reduce CPU, memory, and storage usage while speeding up queries. - Ongoing performance insights
A non-intrusive sensor/agent can monitor database workloads and highlight slow queries, bottlenecks, and cost-saving opportunities over time. - Explainable recommendations
EverSQL shows exactly what was changed in your query (for example, refactoring date functions or joins), so developers can learn and adjust their own SQL style. - IDE and workflow integration
Plugins for JetBrains IDEs and Visual Studio Code let you optimize queries directly from your editor.
Pricing
As of late 2025:
Offered as a paid Aiven feature with a 30-day free trial, then billed according to your Aiven PostgreSQL service plan and instance size. Exact rates depend on cloud provider, region, and resources, so you must check Aiven’s pricing page for current details.
Web-based SQL Optimizer (via Aiven)
Marketed as a free online SQL Optimizer for PostgreSQL and MySQL.
Aiven AI Database Optimizer (EverSQL engine fully integrated)
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