Rust

Systems programming language delivering performance and memory safety without a garbage collector or runtime. Compiles to native code for resource-critical services, embedded devices, and tight integration with C and other languages via FFI.

Adopted by Meta for WhatsApp media handling, Vercel for serverless and build tooling, and Kong for gateway routing. Rust differs from C and C++ through compile-time memory and thread safety enforced by its ownership model, catching data races and buffer overflows before execution. Hundreds of companies run it in production for CLI tools, web services, networking stacks, and embedded firmware.

Key capabilities:

• Ownership and borrowing model that guarantees memory safety and thread safety at compile time
• Zero-cost abstractions with no runtime overhead, no garbage collector
• Cargo package manager and build tool with integrated testing, formatting, and linting
• WebAssembly targets for browser and edge workloads, interoperable with JavaScript
• Strong cross-compilation support for multiple architectures and embedded targets

Rust suits CLI tools, network services, game engines, OS components, and browser engines where control over memory and latency matters. WebAssembly builds enable compute-heavy client-side logic. The ecosystem includes frameworks for web backends, async runtimes, and embedded development.