RegSQL vs Sleek

RegSQL is a web SQL workspace combining browser-local formatting with optional AI assistance. Formatting runs in a browser worker without an account or server round trip. It adjusts whitespace and casing while preserving query logic, aliases, and comments, and accepts multi-statement input up to 1 MB. Listed dialects are PostgreSQL, MySQL, MariaDB, SQLite, BigQuery, SQL Server, Snowflake, and Oracle PL/SQL. AI tools can generate SQL from a description, explain an existing query, or suggest a repair. Formatting may reveal parsing problems, but RegSQL does not connect to a database or verify tables, columns, permissions, data types, or runtime behavior. SQL, prompts, and schema text are sent to the AI provider only after Generate, Explain, or Repair is chosen. The Free plan is free, billed Forever, with unlimited local formatting and 20 AI requests monthly. Indie costs $8 a month or $72 billed yearly ($6/month).

Sleek is a command-line SQL formatter for applying consistent styles across SQL files. Its configurable options include indentation, keyword casing, and blank lines between queries. You can pass file paths or glob patterns, or provide input through standard input when no paths are supplied. The `--check` flag reports whether files are formatted without changing them. Sleek supports PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, and Oracle. Its VS Code extension can format documents or selections, check formatting, and optionally format on save or paste; it can also download the CLI when it is not found. The CLI is available as compiled binaries or through Cargo, which requires Rust, and the project directs users to choose a binary for their operating system and architecture. Sleek is available under the MIT License, with formatting handled by the `sqlformat` crate. Building release v0.4.0 requires Rust 1.85 or later. The listed plan is free, with a free plan and no free trial.