Rust Runtime

Open-source Rust projects categorized as Runtime
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Rust WASM JavaScript WebAssembly TypeScript
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Top 23 Rust Runtime Projects

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  1. wasmtime

    A lightweight WebAssembly runtime that is fast, secure, and standards-compliant

    Project mention: A new WebAssembly runtime enters the arena... Is it worthy? | dev.to | 2026-09-11

    Wasmtime is mature, fast, and backed by the Bytecode Alliance. Wasmer has been around for years, V8 speaks wasm fluently, and if you're writing Go, wazero is already the de-facto answer.

  2. AppSignal

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  3. boa

    Boa is an embeddable Javascript engine written in Rust.

    Project mention: One Year of Sponsored Servo Development | news.ycombinator.com | 2026-09-17

  4. smol

    A small and fast async runtime for Rust

  5. lunatic

    Lunatic is an Erlang-inspired runtime for WebAssembly

    Project mention: Lunatic: An Erlang-inspired runtime for WebAssembly | news.ycombinator.com | 2026-07-02

  6. kube

    Rust Kubernetes client and controller runtime

  7. wasmi

    WebAssembly (Wasm) Interpreter - An efficient, lightweight, and deterministic WebAssembly interpreter for embedded systems and plug-in runtimes.

    Project mention: Smart Escrow Series #3: Security | dev.to | 2025-12-18

    Wasmi, the chosen runtime, has also been audited twice previously for blockchain use cases. Those audit reports are available publicly here: https://github.com/wasmi-labs/wasmi/tree/main/resources

  8. blueboat

    All-in-one, multi-tenant serverless JavaScript runtime.

  9. SaaSHub

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  10. brimstone

    New JavaScript engine written in Rust

    Project mention: JavaScript engines zoo – Compare every JavaScript engine | news.ycombinator.com | 2026-01-04

    Is this right? Brimstone has a single contributor, 74k LOC (vs 1.3M for V8) and it's 97% compatible with ES6?

    That's a staggering accomplishment.

    https://github.com/Hans-Halverson/brimstone

  11. andromeda

    JS runtime lolz

    Project mention: The Difference of Deno and Node Handle Signals in Watch Mode | dev.to | 2025-12-12

    I recently started learning Rust and tried to contribute to some projects that use it, specifically Andromeda and Deno. Both projects are JavaScript/TypeScript runtimes and have some problems with their watch mode.

  12. actix-net

    A collection of lower-level libraries for composable network services.

  13. dvm

    🦕 Deno Version Manager - Easy way to manage multiple active deno versions.

  14. obelisk

    Durable & Deterministic Workflow Engine (by obeli-sk)

    Project mention: SQLite is all you need for durable workflows | news.ycombinator.com | 2026-05-29

    Subscribe to this issue: https://github.com/obeli-sk/obelisk/issues/65

  15. pon

    Python 3.14, compiled to metal — JIT & AoT native compiler and runtime in Rust. Cranelift backend, ruff parser, Green Tea GC, byte-exact differential testing against CPython.

    Project mention: TurboPython – A Python-to-C++ Compiler | news.ycombinator.com | 2026-10-04

    https://discuss.python.org/t/using-tagged-pointers-to-suppor...).

    We even had this project, Pon, posted about 3 months ago (https://github.com/can1357/pon).

    > pon is a JIT & AoT native compiler and runtime for Python 3.14, written in Rust.

    This is all anyone has ever wanted. It was basically dismissed, and hasn’t been worked on since it was posted. If a project like that can’t inspire interest, I don’t know what will.

  16. FutureSDR

    An Async SDR Runtime for Heterogeneous Architectures

  17. spiderfire

    JavaScript Runtime built with Mozilla's SpiderMonkey Engine

  18. vrs

    A Personal Software Runtime inspired by Emacs, Plan 9, Erlang, Hypermedia, and Unix (by leoshimo)

  19. metatype

    Declarative API development platform. Build backend components with WASM, Typescript and Python, no matter where and how your (legacy) systems are.

  20. NIGHTRUN

    Boot your PC straight into an LLM. Rust, UEFI-resident, no operating system underneath.

    Project mention: An LLM runtime that boots from USB | news.ycombinator.com | 2026-09-05

  21. asupersync

    Async runtime for Rust where correctness is structural: region-owned tasks, cancel-correct protocols, capability-gated effects, and deterministic replay testing

    Project mention: Show HN: Asupersync, the Cancel-Correct Async Runtime for Rust | news.ycombinator.com | 2026-03-02

    Who asked for this? Who asked for you to burn a couple of forests failing to solve a solved problem? Glancing the README nobody will ever read, your whole reasoning for this is wrong.

    Your "guarantees" are fake - https://github.com/Dicklesworthstone/asupersync/blob/main/sr... "can't fail" doesn't mean "ignore errors". Though I don't expect you even understand a line of this slop.

  22. cordial

    Open-source Roblox runtime for Linux. Cordial runs the Roblox client natively, no Wine, no Android emulator. Multi-instance launcher, customizable, GPL-3.0 and fully auditable. A direct alternative to Sober.

    Project mention: Show HN: Cordial – Roblox's Android engine running natively on Linux | news.ycombinator.com | 2026-08-02

  23. extreme

    extremely boring async function runner! (by spacejam)

  24. awesome-tokio

    Awesome books, tutorials, courses, and resources for Tokio. ⚡

  25. numax

    The beginning of a new runtime model

    Project mention: Help to Improve Numax's Website? | news.ycombinator.com | 2026-08-20

  26. SaaSHub

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

Rust Runtime discussion

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Rust Runtime related posts

  • One Year of Sponsored Servo Development

    4 projects | news.ycombinator.com | 17 Sep 2026

  • AgentOS: a Rust runtime for AI agents with deterministic time-travel replay

    1 project | dev.to | 26 Jul 2026

  • Show HN: Railguard – A safer –dangerously-skip-permissions for Claude Code

    1 project | news.ycombinator.com | 17 Mar 2026

  • Building a JIT Compiler from Scratch: Part 1 — Why Build a JIT Compiler?

    5 projects | dev.to | 19 Feb 2026

  • XRPL Programmability: WASM Runtime Revisit

    3 projects | dev.to | 1 Dec 2025

  • Brimstone: ES2025 JavaScript engine written in Rust

    8 projects | news.ycombinator.com | 16 Nov 2025

  • Show HN: Munal OS: a graphical experimental OS with WASM sandboxing

    10 projects | news.ycombinator.com | 9 Jun 2025
  • A note from our sponsor - AppSignal
    www.appsignal.com | 7 Oct 2026
    Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise. Learn more →

Index

What are some of the best open-source Runtime projects in Rust? This list will help you:

# Project Stars
1 wasmtime 18,689
2 boa 7,572
3 smol 5,081
4 lunatic 4,889
5 kube 3,836
6 wasmi 2,322
7 blueboat 1,924
8 brimstone 1,321
9 andromeda 841
10 actix-net 778
11 dvm 710
12 obelisk 584
13 pon 572
14 FutureSDR 480
15 spiderfire 440
16 vrs 409
17 metatype 408
18 NIGHTRUN 301
19 asupersync 277
20 cordial 178
21 extreme 165
22 awesome-tokio 140
23 numax 118

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