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// overview
What is Culprit SQL Studio?
Culprit SQL Studio is listed under Developer tools on ListMySaaS. Find slow SQL queries across databases and get instant fixes
Culprit SQL Studio helps developers identify and optimize slow SQL queries across SQL Server, PostgreSQL, MySQL, and MariaDB databases. Simply analyze your queries and receive one-sentence fixes to improve performance.
Available as a free, open-source desktop application, command-line interface (CLI), and Model Context Protocol (MCP) server, it integrates seamlessly into your development workflow.
Key features
- Ranked performance findings: Identifies slow queries and missing indexes ranked by database time with evidence and production-safe fixes.
- Execution plan insights: Explains query plans in plain language and compares two plans to show why one is slower.
- Query regression tracking: Compares two time periods to detect slower queries alongside recent deploys and statistics updates.
- Live blocking analysis: Visualizes active session trees to identify which query is causing lock waits or deadlocks.
- Agent MCP server: Provides 25 database performance tools and JSON output for coding agents like Cursor and Claude Code.
- Read-only architecture: Scans existing database statistics and catalog views locally without transmitting data outside your machine.
// audience
Who is Culprit SQL Studio for?
Good fit if
- You manage SQL Server, PostgreSQL, MySQL, or MariaDB databases and need to resolve slow queries
- You want to compare execution plans or trace query regressions across different time periods
- You use coding agents like Cursor or Claude Code and need an MCP performance server
Good to know
- The product is completely free and open-source
- Available as a desktop application, command-line interface, and an MCP server
- Runs locally with a read-only architecture that does not transmit database data externally
// pricing
How is Culprit SQL Studio priced?
Culprit SQL Studio is listed as free. Confirm that on the vendor site before you rely on it, because plans change.
// alternatives
How does Culprit SQL Studio compare to alternatives?
Culprit SQL Studio is listed as Free. In Developer tools, the closest listings are Screen Studio, Founder Lift, and GoSupportIt. Screen Studio is listed as Paid · from $9/month. Founder Lift is listed in the same category. GoSupportIt is listed in the same category. See the alternatives page for the rest of the Developer tools list.
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