# WebAssembly/wabt

The WebAssembly Binary Toolkit

Repository: https://github.com/WebAssembly/wabt
Canonical: https://ross.abutalabs.com/products/wabt
Language: C++
License: Apache-2.0
License Family: permissive
Topics: webassembly
Last push: 2026-08-26T05:57:03+00:00

## Health v2 (maintenance only)
Score: 85/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 59, longevity 100
- inputs: {"age_days": 4006, "days_push": 7, "days_rel": 118, "gap_med": 91.5, "n_releases_24m": 5}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8105, forks 821 (observed 2026-08-28T04:10:12.963387+00:00)

## What it is
WABT (The WebAssembly Binary Toolkit) is a suite of C/C++ command-line tools for working with WebAssembly binaries, including wat2wasm, wasm2wat, wasm-objdump, wasm-interp, and wasm2c. It aims for full spec fidelity with 1:1 round-trips between text and binary formats, without optimization features.

## Use cases
- convert WebAssembly text format to binary
- disassemble a wasm binary back to wat text
- inspect and dump sections of a wasm binary
- run a wasm module in a standalone interpreter
- compile wasm to C source and header
- validate a WebAssembly binary file
- strip sections from a wasm binary

## When to choose
- you need reliable wat<->wasm conversion with spec-compliant round-trips
- you're building a WebAssembly toolchain and need a parser/validator library
- you want to inspect, debug, or run wasm binaries from the command line
- you need to convert wasm to C for embedding

## When to avoid
- you need wasm optimization passes - use Binaryen instead
- you need a higher-level compiler target for a new language
- you need a runtime with JIT performance for production workloads

## Facets
- artifact type: cli-tool
- maturity: stable
- function: compiler, interpreter, parser, developer-tools, wasm
- domain: developer-tools, compilers, web-development, programming-languages
- platform: windows, cli, cross-platform, wasm
- tags: webassembly, wat, wasm, binary-toolkit, wasm2c, objdump, linux, macos

## Member repositories
- WebAssembly/wabt (main) score 85

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:12.963387+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:30:41.938845+00:00, confidence not recorded.
  - readme: https://github.com/WebAssembly/wabt (fetched 2026-08-28T04:10:12.963387+00:00, sha 97d47d8fe864)
- Data as of 2026-08-30T08:39:29.467469+00:00.