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WebAssembly/proposals

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Rank 53,688 (Top 2 %)
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Created about 6 years ago
Updated over 1 year ago

WebAssembly/proposals

WebAssembly

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Tracking WebAssembly proposals

WebAssembly proposals

Active proposals

Proposals follow this process document.

Phase 5 - The Feature is Standardized (WG)

These proposals have not yet been merged to the spec. Merged proposals are listed in Finished Proposals.

Proposal	Champion

Phase 4 - Standardize the Feature (WG)

Proposal	Champion
Tail call	Andreas Rossberg
Extended Constant Expressions	Sam Clegg

Phase 3 - Implementation Phase (CG + WG)

Proposal	Champion
Multiple memories	Andreas Rossberg
Custom Annotation Syntax in the Text Format	Andreas Rossberg
Memory64	Sam Clegg
Exception handling	Heejin Ahn
Web Content Security Policy	Francis McCabe
Branch Hinting	Yuri Iozzelli
Relaxed SIMD	Marat Dukhan & Zhi An Ng
Typed Function References	Andreas Rossberg
Garbage collection	Andreas Rossberg
Threads	Conrad Watt
JS Promise Integration	Ross Tate and Francis McCabe
Type Reflection for WebAssembly JavaScript API	Ilya Rezvov

Phase 2 - Proposed Spec Text Available (CG + WG)

Proposal	Champion
ECMAScript module integration	Asumu Takikawa & Ms2ger
Relaxed dead code validation	Conrad Watt and Ross Tate
Numeric Values in WAT Data Segments	Ezzat Chamudi
Instrument and Tracing Technology	Richard Winterton
Extended Name Section	Ashley Nelson

Phase 1 - Feature Proposal (CG)

Proposal	Champion
Type Imports	Andreas Rossberg
Component Model	Luke Wagner
WebAssembly C and C++ API	Andreas Rossberg
Flexible Vectors	Petr Penzin
Call Tags	Ross Tate
Stack Switching	Francis McCabe & Sam Lindley
Constant Time	Sunjay Cauligi, Garrett Gu, John Renner, Hovav Shacham, Deian Stefan, Conrad Watt
JS Customization for GC Objects	Asumu Takikawa
Memory control	Deepti Gandluri
Reference-Typed Strings	Andy Wingo
Profiles	Andreas Rossberg
JS String Builtins	Ryan Hunt

Phase 0 - Pre-Proposal (CG)

Proposal	Champion

Implementation status

Roadmap is available on https://webassembly.org/roadmap/

Contributing new proposals

Please see Contributing to WebAssembly for the most up-to-date information on contributing proposals to standard.

design

WebAssembly Design Documents

binaryen

Optimizer and compiler/toolchain library for WebAssembly

wabt

The WebAssembly Binary Toolkit

WASI

WebAssembly System Interface

spec

WebAssembly specification, reference interpreter, and test suite.

wasi-sdk

WASI-enabled WebAssembly C/C++ toolchain

gc

Branch of the spec repo scoped to discussion of GC integration in WebAssembly

component-model

Repository for design and specification of the Component Model

wasi-libc

WASI libc implementation for WebAssembly

interface-types

threads

Threads and Atomics in WebAssembly

wasm-c-api

Wasm C API prototype

simd

Branch of the spec repo scoped to discussion of SIMD in WebAssembly

meetings

WebAssembly meetings (VC or in-person), agendas, and notes

wasi-nn

Neural Network proposal for WASI

esm-integration

ECMAScript module integration

wasm-jit-prototype

Standalone VM using LLVM JIT

tool-conventions

Conventions supporting interoperatibility between tools working with WebAssembly.

website

WebAssembly website

memory64

Memory with 64-bit indexes

testsuite

Mirror of the spec testsuite

wasi-filesystem

Filesystem API for WASI

reference-types

Proposal for adding basic reference types (anyref)

wasi-crypto

WASI Cryptography API Proposal

exception-handling

Proposal to add exception handling to WebAssembly

wasi-sockets

WASI API proposal for managing sockets

wasi-http

wasi-threads

wasi-io

I/O Types proposal for WASI

multi-memory

Multiple per-module memories for Wasm

stack-switching

A repository for the stack switching proposal.

module-linking

Proposal for allowing modules to define, import and export modules and instances

tail-call

Proposal to add tail calls to WebAssembly

wasp

WebAssembly module decoder in C++

function-references

Proposal for Typed Function References

debugging

Design documents and discussions about debug support in WebAssembly

wasmint

Library for interpreting / debugging wasm code

bulk-memory-operations

Bulk memory operations

wasi-webgpu

js-promise-integration

JavaScript Promise Integration

multi-value

Proposal to add multi-values to WebAssembly

wasi-testsuite

wasi-cloud-core

flexible-vectors

Vector operations for WebAssembly

waterfall

Build and test bots

js-types

Proposal for adding type reflection to the JS API

relaxed-simd

Relax the strict determinism requirements of SIMD operations.

content-security-policy

shared-everything-threads

A draft proposal for spawning threads in WebAssembly

stringref

JS-BigInt-integration

JavaScript BigInt to WebAssembly i64 integration

wasi-keyvalue

wasi-libc-old

Precursor to WASI libc.

wasi-clocks

Clocks API for WASI

wasi-random

Entropy source API for WASI

benchmarks

Resources for collaborative benchmarking

wasi-sql

wasi-sql-embed

memory-control

A proposal to introduce finer grained control of WebAssembly memory.

annotations

Proposal for Custom Annotation Syntax in the Text Format

proposal-type-imports

Proposal for Type Imports & Exports

constant-time

Constant-time WebAssembly

wasi-proposal-template

Starter template for proposing a new WASI API

wasi-messaging

Messaging proposal for WASI

wasi-tools

funclets

Proposal for adding funclets - flexible intraprocedural control flow

wasi-parallel

wasi-parallel is a proposal to add a parallel for construct to WASI.

sign-extension-ops

Sign-extension opcodes

mutable-global

Import & export of mutable globals

wasi-poll

wasi-cli

Command-Line Interface (CLI) World for WASI

extended-const

Proposal for extended constant expressions

wasi-observe

Observability World for WASI

instrument-tracing

Proposal to add instrumentation and tracing instructions to WebAssembly

nontrapping-float-to-int-conversions

Proposal to add non-trapping float-to-int conversions to WebAssembly

wasi-blobstore

conditional-sections

wasi-grpc

profiles

Profiles proposal

wasi-logging

WASI logging API

wasi-i2c

I2C API for WASI

extended-name-section

feature-detection

wasi-config

webassembly.github.io

Redirect to webassembly.org

testsuite-js

WebAssembly testsuite tests converted to single-file JavaScript tests

lld

Staging repository for upstreaming WebAssembly support into lld

branch-hinting

Proposal to add branch hinting functionality to WebAssembly

decompressor-prototype

wat-numeric-values

Proposal to add numeric values to data segment definitions in the text format

gc-js-customization

js-string-builtins

JS String Builtins

wasi-classic-command

wasi-url

half-precision

Proposal to introduce half precision operations

wit-abi-up-to-date

wasi-spi

wg-charter

Proposed WebAssembly Working Group charter

call-tags

cg-charter

Proposed WebAssembly Community Group charter