Browse free open source Rust Runtimes and projects below. Use the toggles on the left to filter open source Rust Runtimes by OS, license, language, programming language, and project status.

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  • 1
    Boa

    Boa

    Embeddable and experimental Javascript engine written in Rust

    This is an experimental Javascript lexer, parser and interpreter written in Rust. Currently, it has support for some of the language.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 2

    Iced

    A cross-platform GUI library for Rust, inspired by Elm

    Iced is a cross-platform, end-user-oriented GUI library for Rust, inspired by The Elm Architecture. It expects you to split user interfaces into four different concepts, which are: the state of your app; messages, which are user interactions or other meaningful events; view logic, which displays your state as widgets that can result in messages; and update logic, which offers a way to update your state and react to messages. Iced is very simple and easy to use, and is type-safe. It offers many great features including built-in widgets and custom widget support, debug overlay, a modular ecosystem and more.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3
    Lunatic

    Lunatic

    Lunatic is an Erlang-inspired runtime for WebAssembly

    Lunatic is a universal runtime for fast, robust and scalable server-side applications. It's inspired by Erlang and can be used from any language that compiles to WebAssembly.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4
    Wasmtime

    Wasmtime

    A fast and secure runtime for WebAssembly

    A standalone runtime for WebAssembly The Wasmtime CLI can be installed on Linux and macOS (locally) with a small install script.
    Downloads: 1 This Week
    Last Update:
    See Project
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    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
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  • 5
    Aurae

    Aurae

    Distributed systems runtime daemon written in Rust

    Aurae is on a mission to be the most loved and effective way of managing workloads on a node. Our hope is that by bringing a better set of controls to a node, we can unlock brilliant higher-order distributed systems in the future. Aurae deploys a memory-safe 1 runtime daemon, process manager, and PID-1 initialization system to remotely schedule processes, containers, and virtual machines as well as set node configurations (e.g., networking storage). Through system proportioning and enterprise workload isolation techniques, the Aurae open-source project can complement higher-order schedulers and control planes (such as Kubernetes) as Aurae supports the usage of multi-tenant workloads and enterprise identities all the way down to the socket layer.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Bend

    Bend

    A massively parallel, high-level programming language

    Bend is a programming language and runtime from Higher Order Company (HoC) that enables writing parallel/concurrent programs to leverage multi‐core CPUs and GPUs more easily. It is designed to abstract away much of the complexity of parallel programming (locks, mutexes, atomics), allowing developers to write code in a more high-level style (similar syntax to Python). It includes a parallel runtime (HVM) to schedule and execute tasks efficiently across available cores / hardware.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Tokio

    Tokio

    A runtime for writing reliable asynchronous applications with Rust

    Build reliable network applications without compromising speed, with Tokio! Tokio is an event-driven, non-blocking I/O platform and asynchronous runtime for the Rust programming language that allows you to write reliable and slim network applications. At a high level, Tokio provides a number of components needed for building asynchronous applications. These include a multithreaded, work-stealing based task scheduler; a reactor that's supported by the operating system's event queue; and asynchronous TCP and UDP sockets. Tokio is reliable in that its APIs are memory-safe, thread-safe, and misuse-resistant. Thanks to its task scheduler, it is also incredibly fast. It is capable of processing hundreds of thousands of requests per second with little to no overhead.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Wasmer

    Wasmer

    The leading WebAssembly Runtime supporting WASIX, WASI and Emscripten

    Create apps that run everywhere, publish, share with the community, and deploy to the edge, globally. Serve sandboxed WebAssembly apps anywhere through a single runtime and do in days what others do in months. Using a binary for each platform and chip is the past. Rise above with lightweight containerized apps that simply run everywhere. Supports almost every programming language. Truly universal, runs everywhere & fast as native. Packages are limited by their languages no more. Collaborate across stacks, leverage the ecosystem, and contribute your own packages. Get the scalability of serverless and the reusability of the cloud. Deploy to the edge, save your users time and yourself money. Faster, affordable & indefinitely scalable. All languages are fully containerized & collaborative. Plug your own backend, compiler, or runner. Run apps at close to native speed and outperform the competition.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    mise

    mise

    Dev tools, env vars, task runner

    Mise (formerly RTX) is a cross-language CLI tool and task runner that manages developer tools, environment variables, and project tasks in a unified configuration (mise.toml). It handles tool installation (e.g., Node, Python, Terraform), env var profiles, and repeatable command scripting.
    Downloads: 0 This Week
    Last Update:
    See Project
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