Sleek
What it is
Sleek is a free command-line tool for formatting SQL files with configurable style rules. Options include indentation, keyword casing and blank lines between queries. Users can supply file paths as arguments, use glob patterns for multiple files, or send input through standard input when no paths are given. The --check flag checks formatting without modifying files. Sleek supports PostgreSQL, MySQL, MariaDB, SQLite, SQL Server and Oracle. The VS Code extension can format documents or selections, check formatting, and optionally format on save or paste; it can also download the CLI if it is not found. The command-line tool is available as compiled binaries from GitHub Releases or through Cargo, which requires Rust. The project directs users to choose a release binary matching their operating system and architecture. Sleek is available under the MIT License, and the repository says formatting work is handled by the sqlformat crate. The v0.4.0 release notes require Rust 1.85 or later to build that release.
For and against
For
- Configurable indentation and keyword casing
- Formats multiple files with glob patterns
- Check mode leaves files unchanged
- VS Code extension supports formatting on save or paste
- Supports six SQL dialects
Against
- Cargo installation requires Rust
- Building v0.4.0 requires Rust 1.85 or later
- Release binaries must match operating system and architecture
The verdict
Sleek provides configurable SQL formatting through both a command-line tool and a VS Code extension. Choose a matching binary or use Cargo, and note the Rust version requirement for building v0.4.0.
Who it suits
Sleek suits developers who want consistent SQL formatting from a command line or VS Code. It supports six listed SQL dialects and offers a check mode for verifying files without changing them.
Plans and prices
Sleek
Open-source SQL formatter · MIT License
Read 3 Oct 2026 · github.com
On the record
- Check mode
- The --check flag checks whether SQL files are formatted without modifying them.github.com · read 3 Oct 2026
- Editor integration
- The VS Code extension formats documents and selections, checks formatting, and can optionally format on save or paste.marketplace.visualstudio.com · read 3 Oct 2026
- Extension setup
- The VS Code extension can download the Sleek CLI automatically when it is not found.marketplace.visualstudio.com · read 3 Oct 2026
- Formatting options
- It supports configurable indentation, keyword casing, and blank lines between queries.github.com · read 3 Oct 2026
- Implementation
- The repository says the formatting work is handled by the sqlformat crate.github.com · read 3 Oct 2026
- Input methods
- Sleek reads file paths as arguments and reads from standard input when no paths are provided.github.com · read 3 Oct 2026
- Installation
- The CLI is available as compiled binaries from GitHub Releases or through Cargo, which requires Rust.github.com · read 3 Oct 2026
- License
- The project is available under the MIT License.github.com · read 3 Oct 2026
- Maker
- The repository owner profile identifies nrempel as Nick Rempel and lists Victoria, BC, Canada.github.com · read 3 Oct 2026
- Multiple files
- Sleek accepts glob patterns to format multiple files.github.com · read 3 Oct 2026
- Purpose
- Sleek is a command-line tool for formatting SQL to maintain consistent style and readability.github.com · read 3 Oct 2026
- Security
- The repository page shows a Security and quality section but states no security certification or compliance claim.github.com · read 3 Oct 2026
- Supported systems
- The project directs users to choose a release binary matching their operating system and architecture.github.com · read 3 Oct 2026
- Upgrade requirement
- The v0.4.0 release notes state that Rust 1.85 or later is required to build that release.github.com · read 3 Oct 2026
