Rocket

Rocket is a type-safe, ergonomic web framework for Rust, created by Sergio Benitez (SergioBenitez). It is one of the oldest and most popular Rust web frameworks, known for its focus on developer experience, compile-time safety guarantees, and an extensive feature set that makes building secure and performant web applications enjoyable. Rocket pioneered several patterns that have become standard in the Rust web ecosystem, most notably the request guard pattern (a type-safe mechanism where function parameters are automatically validated and extracted from the incoming request, with compile-time enforcement that all required data is present and valid). Key features include: type-safe routing via the #[get], #[post], #[put], #[delete], and #[patch] macros (with compile-time URL parameter validation), request guards (types implementing the FromRequest trait that are automatically extracted and validated from requests, enabling powerful patterns like authentication, rate limiting, and request-scoped state management without boilerplate), response guards (types implementing the FromParam trait for URL parameter parsing and validation), templating support (with built-in support for Tera, Handlebars, and Askama template engines), form handling (with automatic deserialization of form data into typed Rust structs via the FromForm trait), JSON serialization and deserialization (via serde integration), database support (via Rocket's database pool system, supporting PostgreSQL, SQLite, MySQL, Redis, and MongoDB with automatic connection pool management), middleware (called Fairings in Rocket, for pre- and post-request processing), cookie-based session management, CSRF protection, TLS and HTTP/2 support, WebSocket support (via the rocket_ws crate), and a powerful configuration system (supporting environment-based configuration with TOML files). As of 2026, Rocket has over 25,000 stars.