Powerful, pragmatic, and extremely fast web framework

Composable, filter-based async web framework built on Tokio and Hyper

Convention-over-configuration web framework for Rust, 25k+ stars

Batteries-included async framework with OpenAPI and HTTP/3 support

Full-featured, fast web framework built on Tokio and hyper

The Rails of Rust: opinionated full-stack framework with generators

Fine-grained reactive framework with SSR support

React-like GUI library for web, desktop, and mobile

Mature React-like framework for client-side Rust and WebAssembly apps

Production-ready gRPC implementation for Rust

Production-grade async JSON-RPC server and client framework

High-performance GraphQL server with full query language support

Compile-time, type-safe Jinja-style templates

Modern lightweight Jinja-compatible runtime template engine

Runtime Jinja2-style templates with dynamic loading

Async SQL toolkit with compile-time checked queries

Ergonomic direct SQLite access for embedded and local-first applications

Native asynchronous PostgreSQL client without an ORM

Safe, extensible ORM with compile-time query validation

Official async MongoDB driver with BSON mapping and transactions

High-performance concurrent in-memory cache inspired by Java's Caffeine

Official Redis client for Rust with async support and connection pooling

Serverless Redis with REST API for edge and serverless

OAuth2 client with authorization code, PKCE, and token exchange flows

Strongly typed OIDC discovery, authorization, and token flows

Tower and Axum session middleware with pluggable stores

Auth framework with passwords, sessions, and pluggable storage

Standard async WebSocket server/client for Tokio

High-performance Kafka producers and consumers backed by librdkafka

Async NATS and JetStream messaging for cloud-native applications

Async RabbitMQ (AMQP) client

Modern email API for developers

CLI argument parser with derive macros (most popular)

Terminal user interface library for building rich TUIs

Random number generation, distributions, sampling, and test data

Extra iterator adaptors, grouping, joining, and collection helpers

De facto standard serialization framework (always included)

Fast, safe regular expressions with guaranteed linear-time matching

Compact synchronization primitives for Mutex and RwLock use cases

Ergonomic HTTP client with JSON and Rustls TLS support

UUID generation and parsing with Serde support

Date and time library with Serde support

Tokio utilities for codecs, cancellation tokens, and IO helpers

Work-stealing data parallelism for CPU-bound iterators and collections

Concurrent hash map for shared mutable state

JWT encoding and decoding for authentication

Property-based testing for Rust

Secret value wrappers that avoid accidental exposure in logs

Powerful mock objects library for Rust testing

Snapshot testing for Rust

Fixture-based and parameterized Rust testing

Secure password hashing (Argon2id winner of PHC)

Layered configuration from files, environment, and defaults

Async testing utilities for Tokio runtime

OpenAPI documentation generation from Rust types

Derive-based validation for structs and fields

RustSec vulnerability auditing for Cargo dependency graphs

Fast, isolated test runner with retries and CI-friendly profiles

Customizable error reports with pretty backtraces via color-eyre

Simple logger configurable via environment variables

Official OTel SDK with OTLP/HTTP export

Lightweight metrics facade with Prometheus exposition support

Error tracking and performance monitoring

Generic AI assistant docs

Cursor IDE rules file