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Sleek

API—OSS—FREEyesDOCS4/5
SL5.4#122 of 150
—WeboutWindowsoutMacoutLinux—Android—iOS

Ranked in To-do list apps ·Free plan

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About

Sleek is a free, open-source command-line tool for formatting SQL to keep its style consistent. It supports configurable indentation, keyword casing, and blank lines between queries, and lists PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, and Oracle among supported dialects. Pass file paths as arguments, use glob patterns for multiple files, or provide SQL through standard input when no paths are supplied. The --check flag checks formatting without changing files. For VS Code users, its extension can format documents or selections, check formatting, and optionally format on save or paste; it can also download the CLI if it is missing. The command-line tool is available as compiled binaries from GitHub Releases or through Cargo, which requires Rust. The project directs users to select a binary matching their operating system and architecture. Sleek is released under the MIT License, and the repository identifies the sqlformat crate as handling formatting work. Building the v0.4.0 release requires Rust 1.85 or later.

Who it is for

Sleek suits developers who want a command-line SQL formatter with configurable style and a non-modifying check mode. Its VS Code extension also serves developers who want formatting from their editor.

What is good

  • Supports six listed SQL dialects.
  • Glob patterns can target multiple files.
  • Check mode does not modify SQL files.
  • VS Code extension supports format-on-save or paste.
  • Available under the MIT License.

What to know first

  • Cargo installation requires Rust.
  • Building v0.4.0 requires Rust 1.85 or later.
  • No custom rules are listed.

Verdict

Sleek covers common formatting controls, multiple SQL dialects, and both command-line and VS Code workflows. Choose a release binary suited to your operating system and architecture, or account for the Rust requirement when building v0.4.0.

Compared on to-do list apps

Free plan
Yesgithub.com
Supported SQL dialects
PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oraclegithub.com
Automatic fixes
Yesgithub.com
Custom rules
Nogithub.com
Editor extensions
Yesgithub.com

Facts

Purpose
Sleek is a command-line tool for formatting SQL to maintain consistent style and readability.github.com · 3 Oct 2026
Formatting options
It supports configurable indentation, keyword casing, and blank lines between queries.github.com · 3 Oct 2026
Multiple files
Sleek accepts glob patterns to format multiple files.github.com · 3 Oct 2026
Check mode
The --check flag checks whether SQL files are formatted without modifying them.github.com · 3 Oct 2026
Input methods
Sleek reads file paths as arguments and reads from standard input when no paths are provided.github.com · 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 · 3 Oct 2026
Extension setup
The VS Code extension can download the Sleek CLI automatically when it is not found.marketplace.visualstudio.com · 3 Oct 2026
Installation
The CLI is available as compiled binaries from GitHub Releases or through Cargo, which requires Rust.github.com · 3 Oct 2026
Supported systems
The project directs users to choose a release binary matching their operating system and architecture.github.com · 3 Oct 2026
License
The project is available under the MIT License.github.com · 3 Oct 2026
Implementation
The repository says the formatting work is handled by the sqlformat crate.github.com · 3 Oct 2026
Security
The repository page shows a Security and quality section but states no security certification or compliance claim.github.com · 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 · 3 Oct 2026
Maker
The repository owner profile identifies nrempel as Nick Rempel and lists Victoria, BC, Canada.github.com · 3 Oct 2026

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