🚀 Fast, secure, lightweight containers based on WebAssembly
wat
Counted from the Cargo.toml manifests of the 49 indexed repositories that declare wat as a dependency — not download counts. Dependency data last verified 2026-08-13.
Crates that show up unusually often in wat projects. The most distinctive pairings rank first — crates these projects use far more than the average indexed Rust project does, not just crates that are popular everywhere. Each percentage is the share of wat projects that also use it.
A lightweight WebAssembly runtime that is fast, secure, and standards-compliant
Spin is the open source developer tool for building and running serverless applications powered by WebAssembly.
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
Reference client for NEAR Protocol
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.
Efficient and versatile WebAssembly interpreter for embedded systems.
🐍🕸 WebAssembly runtime for Python
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
A language binding generator for WebAssembly interface types
Enarx: Confidential Computing with WebAssembly
Facilitates running Wasm / WASI workloads managed by containerd
JavaScript to WASM compiler
The WebAssembly Pre-Initializer
JavaScript toolchain for working with WebAssembly Components
Execute WebAssembly from Elixir
nCPU: model-native and tensor-optimized CPU research runtimes with organized workloads, tools, and docs
Experimental WASM Microkernel Operating System
A Cargo subcommand for creating WebAssembly components based on the component model proposal.
A Tiny Webassembly Runtime Written in Rust
💎🕸 WebAssembly runtime for Ruby
zkVerify is a highly performant, secure, and decentralized Substrate-based blockchain for zero-knowledge (ZK) proof verification, that substantially lowers the costs of verification and extends the range of possibilities within Web3 to use different cryptographic primitives and systems.
Modern plain text accounting. Beancount compatible.
Web3 Ultimate Execution Engine
WebAssembly Composition (WAC) tooling
A programmable cross-platform sequencer for the Game Boy Advance sound chip
Calimero - Peer-to-peer application platform with local-first governance, CRDT state sync, and WASM execution.
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
The compiler for the Claw language
A language binding generator for `wai` (a precursor to WebAssembly interface types)
Compiler from Rust to Miden Assembly
The Wado Programming Language
A framework to build smart contracts on the Fluent L2 as well as blockchains and verifiable compute environments that compile to rWasm
[EXPERIMENTAL] Eidetica-Native AI Agent framework
Software for exploring, developing, and evaluating quantum error-correction protocols.
Aver is a programming language for auditable AI-written code
Rust data plane for Nantian Gateway. HTTP/gRPC proxy, stream passthrough, AI Gateway filters, and Wasm plugin runtime powered by Pingora.
Command line linker for creating WebAssembly components
Multi-driver TUI database client with a built-in MCP server. Six databases (postgres, mysql, sqlite, duckdb, clickhouse, mssql), vim editing, Lua + WASM plugins, schema diff, audit log.
Sam's Programming Language
WebAssembly binding for Godot
Barbacane API and Bidirectional AI Gateway
A functional programming language optimized for LLM code generation. Compiles to Rust and WebAssembly.
Polyglot, deterministic, sandboxed WASM runtime. Run or compile any language to one sealed, reproducible artifact.