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π RuView turns commodity WiFi signals into real-time spatial intelligence, vital sign monitoring, and presence detection — all without a single pixel of video.

🚀 Fast, secure, lightweight containers based on WebAssembly

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

IronClaw is an Agent OS focused on privacy, security and extensibility

Spin is the open source developer tool for building and running serverless applications powered by WebAssembly.

Lunatic is an Erlang-inspired runtime for WebAssembly

A portable open-source operating system for agents. ~6 ms coldstarts, 32x cheaper than sandboxes. Powered by WebAssembly and V8 isolates.

A portable accelerated SQL query, search, and LLM-inference engine, written in Rust, for data-grounded AI apps and agents.

The Parity Polkadot Blockchain SDK

JS to WebAssembly toolchain

Reference client for NEAR Protocol

LeanCTX — the Context OS for AI development. One local binary that compresses, remembers, routes, and verifies every token between your code and the model. 63 MCP tools, 10 read modes, up to 99% token savings. Works with Cursor, Claude Code, Copilot, Windsurf, Codex, Gemini.

wasmCloud is an open source Cloud Native Computing Foundation (CNCF) project that enables teams to build, manage, and scale polyglot apps across any cloud, K8s, or edge.

🐍🕸 WebAssembly runtime for Python

Efficient and versatile WebAssembly interpreter for embedded systems.

Solving i18n for client-side and resource-constrained environments.

Internet Computer blockchain source: the client/replica software run by nodes

CLI and Rust libraries for low-level manipulation of WebAssembly modules

Enarx: Confidential Computing with WebAssembly

A language binding generator for WebAssembly interface types

Facilitates running Wasm / WASI workloads managed by containerd

High-performance AI coding agent CLI written in Rust with zero unsafe code

WebAssembly Smart Contracts for the Cosmos SDK

JavaScript to WASM compiler

The WebAssembly Pre-Initializer

JavaScript toolchain for working with WebAssembly Components

Execute WebAssembly from Elixir

Experimental WASM Microkernel Operating System

Lightweight, clear, and fully extensible AI agent infrastructure — learn easily, customize anything 🐉

Local-first ETL/ELT studio: a drag-and-drop visual pipeline designer that compiles to SQL and runs on DuckDB. Tiny desktop app, no servers, git-friendly workspaces.

A Cargo subcommand for creating WebAssembly components based on the component model proposal.

A Tiny Webassembly Runtime Written in Rust

💎🕸 WebAssembly runtime for Ruby

Reference implementation of the Filecoin Virtual Machine

Engine-agnostic LLM gateway in Rust. Full OpenAI & Anthropic API compatibility across vLLM, TRT-LLM, TokenSpeed, SGLang, OpenAI, Gemini & more. Industry-first gRPC pipeline, KV cache-aware routing, chat history, tokenization caching, Responses API, embeddings, WASM plugins, MCP, and multi-tenant auth.

Local-first ETL/ELT studio: a drag-and-drop visual pipeline designer that compiles to SQL and runs on DuckDB. Tiny desktop app, no servers, git-friendly workspaces.

Modern plain text accounting. Beancount compatible.

Web3 Ultimate Execution Engine

Experimental Go parser and compiler.

Snapshotable WebAssembly interpreter from scratch. Includes a time travel debugger

WebAssembly Composition (WAC) tooling

A programmable cross-platform sequencer for the Game Boy Advance sound chip

Contract-driven runtime for portable business capabilities — spec-governed, WASM-first, composable across browser, edge, cloud, and AI.

A WebAssembly executor for Dart and Flutter applications. Uses Rust's wasmtime optimizing runtime or wasmi interpreter to parse and execute WASM and WAT files.

Ruby WebAssembly runtime powered by Wasmtime

Distributed immutable data store with strong encryption and authentication

A containerd shim for running Spin Applications.

The compiler for the Claw language

A language binding generator for `wai` (a precursor to WebAssembly interface types)