SQLFluff vs Valk Guard
SQLFluff
sqlfluff.comValk Guard
github.comSide by side
| Figure | SQLFluff | Valk Guard |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 0 |
| Spec score · SQL Linters and Formatters | 8.0 (#10) | 6.7 (#26) |
| Installation | The project’s website directs users to install SQLFluff from PyPI using pip or another Python package manager. | The project provides prebuilt Linux, macOS, and Windows binaries and a Go install option. |
| Integrations | SQLFluff can be used in CI/CD pipelines and supports GitHub Actions output for pull request annotations. | It supports Go database/sql and Goqu, Python SQLAlchemy, and C# EF Core scanning. |
| Purpose | SQLFluff is an open source, dialect-flexible SQL linter designed with ELT applications in mind. | Valk Guard is a SQL linter that scans raw SQL and application code to catch risky queries before they merge. |
| Rules | The documentation lists more than 70 linting rules covering style, structure, and best practices. | It ships with 19 rules covering query safety, schema drift, and query/schema validation. |
Plans
In their own words
SQLFluff
SQLFluff is an open-source, dialect-flexible SQL linter designed for ELT applications. It reports style and syntax issues, parses SQL without database access and can automatically fix many violations with one command. Documentation describes support for more than 25 dialects, including T-SQL, PostgreSQL, BigQuery and Snowflake, alongside more than 70 rules for style, structure and best practices. Jinja templating and dbt are supported, and CI/CD integration includes GitHub Actions output for pull-request annotations. SQLFluff is free under the MIT License and installs from PyPI with pip or another Python package manager. It does not execute SQL itself, but templating macros such as dbt's run_query may execute arbitrary SQL. The Jinja templater uses Jinja2 SandboxedEnvironment to limit unsafe code execution. The dbt templater requires the relevant adapter and sqlfluff-templater-dbt package; models accessing a database during compilation require database access. Community support includes documentation, GitHub, Slack and Stack Overflow.