A practical SQL Server performance diagnostic toolkit built from real production troubleshooting.
Designed for developers and DBAs who need fast answers when a SQL Server database becomes slow.
SQL Toolbox is a collection of SQL Server diagnostic scripts that help identify performance problems quickly.
Typical issues it helps investigate:
- slow SQL Server performance
- blocking sessions
- missing indexes
- long running queries
- database health problems
- performance regressions
The goal is simple:
When a database is slow, developers should be able to find the root cause in minutes — not hours.
SQL Toolbox Community Edition includes:
- SQL Server performance diagnostic scripts
- server-wide database scan
- missing index impact analysis
- blocking session detection
- slow query analysis
- database health checks
The toolkit runs entirely in T-SQL.
No agents.
No services.
No external dependencies.
Run the main diagnostic procedure:
EXEC SQLToolbox.RunAll;This performs a structured diagnostic scan and highlights the most important performance issues.
SQL Toolbox helps when:
- a SQL Server database suddenly becomes slow
- blocking chains appear in production
- performance degrades after deployment
- you want to perform a quick SQL Server health check
- you need a fast diagnostic overview of a server
Run the installation script included in the repository:
SQLToolbox_INSTALL.sql
After installation:
EXEC SQLToolbox.RunAll;SQL Toolbox was created as a practical toolkit for SQL Server performance troubleshooting.
It can help identify:
- missing indexes
- blocking sessions
- slow queries
- database health issues
- potential performance bottlenecks
The Community Edition provides core diagnostic scripts.
The PRO version adds:
- structured installer
- automation via SQL Agent jobs
- advanced index analysis
- HTML performance reports
- performance history tracking
- utility framework for maintenance tasks
The Community Edition is perfect for quick diagnostics.
You might want the PRO version if you need:
- automated performance scans
- structured installation
- HTML performance reports
- SQL Agent job automation
- extended diagnostic modules
The PRO version builds on the same core scripts but adds automation and production-ready workflows.
👉 PRO version available here:
GUMROAD LINK
SQL Toolbox is actively developed.
Planned improvements include:
- smarter index advisor
- Query Store integration
- improved HTML reporting
- extended performance diagnostics
If you find this project useful:
⭐ Star the repository
🛠 Try the PRO version
SQL Toolbox was built from real production troubleshooting experience.
The focus is simple:
Provide practical SQL Server diagnostic tools that help developers understand performance problems quickly.
