emscripten-core/emscripten

View on GitHub

Emscripten: An LLVM-to-WebAssembly Compiler

Stars: 27.6k
Forks: 3.6k
Open beginner issues: 0
Indexed issues: 2k
Avg merge: 1d 14h
Merged PRs (30d): 125

Dominant language: C++
License: No license data
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

Open All

2,037 open issues indexed

add asyncify into gl_in_pthread.cpp Open

asyncify

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

emscripten-core/emscripten#12572 · 2 comments · Opened Oct 21, 2020
Index out of bounds error with an array of certain size Open

wontfix

Difficulty 3/5 1-2 days Newbie friendliness 35/100

emscripten-core/emscripten#12571 · 6 comments · 1 reaction · Opened Oct 21, 2020
Failed to fetch compiler version information with command "'C:/emsdk/upstream/emscripten/emcc.bat' ] Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12537 · 19 comments · Opened Oct 16, 2020
Clarify and document our support or lack of it for msys2/cygwin/mingw Open

good first bug help wanted wontfix

Difficulty 2/5 1-2 days Newbie friendliness 35/100

emscripten-core/emscripten#12533 · 2 comments · Opened Oct 15, 2020
Cannot build MyMonero library Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 35/100

emscripten-core/emscripten#12528 · 3 comments · Opened Oct 15, 2020
Provide file path for source files when debugging Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 35/100

emscripten-core/emscripten#12515 · 1 comment · Opened Oct 14, 2020
Failed to parse metadata - Newline escaping Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 32/100

emscripten-core/emscripten#12514 · 3 comments · Opened Oct 14, 2020
webidl: Why remove the underline of a variable or function Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12495 · 4 comments · Opened Oct 12, 2020
pthread error Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12473 · 9 comments · 2 reactions · Opened Oct 9, 2020
MAXIMUM_MEMORY=-1 Open

good first bug help wanted wontfix

emscripten-core/emscripten#12462 · 13 comments · 1 assignee · Opened Oct 7, 2020
How to access to FS in Module, before promise is completed? Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 35/100

emscripten-core/emscripten#12460 · 1 comment · Opened Oct 7, 2020
register_map resulting .keys() function can't be called. Open

embind wontfix

Difficulty 4/5 3-5 days Newbie friendliness 35/100

emscripten-core/emscripten#12459 · 5 comments · Opened Oct 7, 2020
Embind: Memory and reference issues with vectors Open

embind

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12455 · 1 comment · 1 reaction · Opened Oct 7, 2020
Why leads SDL_CreateWindowAndRenderer() to wrong behaviour of a JS Slider on Mozilla? Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 32/100

emscripten-core/emscripten#12444 · 1 comment · Opened Oct 6, 2020
Overhead of VAL? Open

wontfix

Difficulty 5/5 Over a week Newbie friendliness 15/100

emscripten-core/emscripten#12440 · 1 comment · Opened Oct 6, 2020
discussion - feasibility to integrate `https://wicg.github.io/file-system-access/` Open

wasmfs

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12428 · 4 comments · 1 reaction · Opened Oct 3, 2020
How to call emmake to pass down MAKEFLAGS Open

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

emscripten-core/emscripten#12424 · 5 comments · Opened Oct 3, 2020
nanosleep autoconf check hangs forever Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

emscripten-core/emscripten#12415 · 12 comments · Opened Oct 2, 2020
Switch from Terser to escodegen Open

help wanted

Difficulty 5/5 Over a week Newbie friendliness 35/100

emscripten-core/emscripten#12410 · 20 comments · Opened Oct 2, 2020
Exiting pthreads postMessage to report the exit, which requires the main thread to receive events in order to reuse them Open

help wanted multithreading

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12400 · 33 comments · Opened Oct 1, 2020
Add an option to support big-endian machines Open

good first bug help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12387 · 34 comments · Opened Sep 30, 2020
LLVM version appears incorrect after install in Ubuntu 18.04 Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12381 · 5 comments · Opened Sep 30, 2020
building.py uses bogus python paths on MSYS2 Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

emscripten-core/emscripten#12376 · 28 comments · Opened Sep 30, 2020
browser.test_pthread_create more flakey in CI in recent days. Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12368 · 3 comments · Opened Sep 29, 2020
pthread_create doesn't run Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12360 · 4 comments · Opened Sep 29, 2020
How to pass a pointer to float array in Javascript Open

wontfix

Difficulty 3/5 1-2 days Newbie friendliness 30/100

emscripten-core/emscripten#12359 · 2 comments · Opened Sep 28, 2020
missing informative way of extracting WebGL context creation failures Open

help wanted wontfix

Difficulty 5/5 Over a week Newbie friendliness 35/100

emscripten-core/emscripten#12355 · 3 comments · 1 reaction · Opened Sep 28, 2020
windows下使用docker，在dockerHub介绍页未提供命令示例 Open

wontfix

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

emscripten-core/emscripten#12350 · 4 comments · Opened Sep 28, 2020
[question] Using lazy files in browser in main thread but in async mode Open

wontfix

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12349 · 1 comment · Opened Sep 26, 2020
Loading data packages into MODULARIZE'd modules dynamically without --pre-js Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12347 · 1 comment · Opened Sep 26, 2020
[feature request] Automatic chunking of data files by file_packager and FS (and potentially wasm files as well?) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12342 · 2 comments · Opened Sep 25, 2020
A question about how EMCC implements WASI Open

wontfix

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12341 · 6 comments · Opened Sep 25, 2020
Heap growth notifications Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12336 · 8 comments · Opened Sep 25, 2020
Asyncify returns immediately even when called indirectly Open

asyncify

Difficulty 4/5 3-5 days Newbie friendliness 30/100

emscripten-core/emscripten#12299 · 10 comments · Opened Sep 22, 2020
Invalid index into function table when running a function from module the second time Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12293 · 13 comments · Opened Sep 21, 2020
Data files are loaded from root, not from directory where js file is loaded from Open

good first bug help wanted

Difficulty 3/5 1-2 days Newbie friendliness 35/100

emscripten-core/emscripten#12288 · 3 comments · Opened Sep 20, 2020
Is sigsuspend implemented? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12283 · 5 comments · Opened Sep 19, 2020
Undefined is returned from function implementing multiple fibers Open

wontfix

Difficulty 4/5 3-5 days Newbie friendliness 24/100

emscripten-core/emscripten#12270 · 3 comments · Opened Sep 18, 2020
[feature request] Option for a custom compiler wrapper path for emmake / emconfigure / emcmake (EM_COMPILER_WRAPPER?) Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

emscripten-core/emscripten#12256 · 23 comments · Opened Sep 17, 2020
Allow emscripten_fetch in Asyncify Open

asyncify

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12255 · 8 comments · Opened Sep 17, 2020
Closure error with ASan + minimal_runtime Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

emscripten-core/emscripten#12248 · 4 comments · Opened Sep 17, 2020
Name pthread workers for easier debugging Open

good first bug help wanted

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

emscripten-core/emscripten#12216 · 12 comments · 3 reactions · Opened Sep 15, 2020
Warn in docs that Chrome doesn't cache large .data and .wasm files Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

emscripten-core/emscripten#12212 · 12 comments · Opened Sep 14, 2020
Replace ENVIRONMENT_* logic with Web default + polyfills? Open

code size

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12203 · 12 comments · 6 reactions · Opened Sep 13, 2020
Add new 'none' ENVIRONMENT Open

JavaScript

Difficulty 5/5 Over a week Newbie friendliness 30/100

emscripten-core/emscripten#12184 · 23 comments · 2 reactions · Opened Sep 12, 2020
[feature request] Rename symbols ("--redefine-sym") or alter the binding of a symbol in wasm-ld (c.f end of issue) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

emscripten-core/emscripten#12167 · 33 comments · Opened Sep 11, 2020
Feature: emscripten_get_callstack with DWARF info Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

emscripten-core/emscripten#12113 · 12 comments · Opened Sep 6, 2020
[feature request] Support uuid_generate_random (in uuid/uuid.h) Open

good first bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 38/100

emscripten-core/emscripten#12093 · 8 comments · Opened Sep 1, 2020
exception not thrown when truncating filenames longer than 255 char Open

filesystem good first bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

emscripten-core/emscripten#12076 · 8 comments · Opened Aug 28, 2020
How to make MODULARIZE'd modules share file system? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

emscripten-core/emscripten#12074 · 25 comments · 1 reaction · Opened Aug 28, 2020

emscripten-core/emscripten

Get new issues in your inbox