emscripten-core/emscripten

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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

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2,037 open issues indexed

How to control the exported symbols of a side module? Open

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

emscripten-core/emscripten#23107 · 3 comments · Opened Dec 9, 2024
help wanted adding pthread support to sdl2_mixer Open

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

emscripten-core/emscripten#23093 · 7 comments · Opened Dec 6, 2024
keeping node alive while workers are working Open

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

emscripten-core/emscripten#23092 · 23 comments · Opened Dec 6, 2024
test_fs_nodefs_statvfs fails with fs.statfsSync is not a function when running locally Open

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

emscripten-core/emscripten#23084 · Opened Dec 5, 2024
'j' parameter values are not passed to JavaScript as pair of numbers when WASM_BIGINT disabled Open

embind

Difficulty 3/5 1-2 days Newbie friendliness 48/100

emscripten-core/emscripten#23078 · 4 comments · Opened Dec 4, 2024
library_sockfs.js can access properties of undefined `dest` (logic flaw) Open

emscripten-core/emscripten#23046 · 1 comment · 1 assignee · Opened Dec 2, 2024
Provide `readyPromiseReject` to `instantiateWasm` Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

emscripten-core/emscripten#23038 · 7 comments · 2 reactions · Opened Nov 29, 2024
EM_ASYNC_JS didn't end as expected when listen dom event Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

emscripten-core/emscripten#23036 · 1 comment · Opened Nov 29, 2024
Extremely long link time Open

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

emscripten-core/emscripten#23034 · 7 comments · Opened Nov 28, 2024
PThreads unable to initialize on Firefox after 3.1.48 Open

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

emscripten-core/emscripten#23032 · 2 comments · Opened Nov 28, 2024
ASYNCIFY_PROPAGATE_ADD does not work with -O1 and above Open

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

emscripten-core/emscripten#23015 · 3 comments · Opened Nov 26, 2024
STANDALONE_WASM still imports some simple filesystem operations from "env" Open

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

emscripten-core/emscripten#23008 · 2 comments · 1 reaction · Opened Nov 25, 2024
undefined symbols: _emscripten_memset_bulkmem, _emscripten_memcpy_bulkmem from libc-debug.a Open

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

emscripten-core/emscripten#23005 · 5 comments · Opened Nov 25, 2024
Allow esm in JS libraries? Open

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

emscripten-core/emscripten#22997 · 2 comments · Opened Nov 24, 2024
Setting the `Module['websocket']` at runtime does not work since version 3.1.71 Open

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

emscripten-core/emscripten#22969 · 4 comments · Opened Nov 20, 2024
compile time errors when including header file emscripten.h from $ENV{EMSDK}/upstream/emscripten/cache/sysroot/include/emscripten Open

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

emscripten-core/emscripten#22948 · 11 comments · Opened Nov 18, 2024
Can't edit any text input fields on my page with Emscripten's .js file loaded. Open

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

emscripten-core/emscripten#22947 · 14 comments · Opened Nov 16, 2024
Canvas is the wrong size for the graphics when writing directly to pixels and using a high DPI and using SDL_WINDOW_ALLOW_HIGHDPI Open

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

emscripten-core/emscripten#22944 · 9 comments · Opened Nov 15, 2024
findCanvasEventTarget doesn't use specialHTMLTargets Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

emscripten-core/emscripten#22942 · 2 comments · Opened Nov 15, 2024
WASMFS disables "emulated posix tcp Sockets over WebSockets" Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

emscripten-core/emscripten#22907 · 3 comments · Opened Nov 11, 2024
[library_dylink.js] How to link a Rust side module with C++ main module: missing `invoke_` functions in proxyHandler Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

emscripten-core/emscripten#22906 · 10 comments · Opened Nov 11, 2024
PostMessage triggers false security alert Open

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

emscripten-core/emscripten#22888 · 2 comments · Opened Nov 8, 2024
`dlopen` missing shared lib twice returns nonzero result in non-debug builds Open

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

emscripten-core/emscripten#22887 · 3 reactions · Opened Nov 8, 2024
library_glfw.js blocks html inputs Open

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

emscripten-core/emscripten#22866 · 2 comments · Opened Nov 6, 2024
[wasm-exceptions] Probable memory corruption when doing try...catch...rethrow Open

emscripten-core/emscripten#22861 · 8 comments · 1 assignee · Opened Nov 6, 2024
Link warning: seeing "19.0", expected "20" [-Wversion-check] Open

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

emscripten-core/emscripten#22813 · 2 comments · Opened Oct 30, 2024
opendir doesn't work on node 23 for paths ending in a slash Open

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

emscripten-core/emscripten#22812 · 1 comment · Opened Oct 30, 2024
Feature Request: The OpenAL efx extension Open

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

emscripten-core/emscripten#22809 · Opened Oct 30, 2024
Defining setStatus with headless flag causes node process to silently exit... Open

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

emscripten-core/emscripten#22793 · 7 comments · Opened Oct 26, 2024
Build boost library to emscripten Open

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

emscripten-core/emscripten#22767 · 2 comments · Opened Oct 18, 2024
Undefined symbol _emscripten_memcpy_js linking no object files with `-lc` Open

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

emscripten-core/emscripten#22758 · 6 comments · Opened Oct 17, 2024
Compiling with `-sENVIRONMENT='webview'` results in broken .js file Open

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

emscripten-core/emscripten#22754 · 1 comment · Opened Oct 16, 2024
[Old EH] JS stack unwinding support corrupts some floats Open

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

emscripten-core/emscripten#22743 · 17 comments · Opened Oct 15, 2024
Question: Is there a way to write a file to local hard disk Open

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

emscripten-core/emscripten#22740 · 11 comments · Opened Oct 15, 2024
Dynamic link & MutiThtread Makes Initialization much slower Open

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

emscripten-core/emscripten#22739 · 4 comments · Opened Oct 15, 2024
IF YOU ARE EXPERIENCING SYMBOLS BEING STRIPPED NO MATTER WHAT YOU DO AND ARE GETTING LINKER ERRORS, READ THIS Open

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

emscripten-core/emscripten#22730 · 2 comments · Opened Oct 13, 2024
find_package(Threads REQUIRED) error on Windows10 with VS2022 Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

emscripten-core/emscripten#22703 · 5 comments · Opened Oct 9, 2024
Uncaught RangeError: Maximum call stack size exceeded ios 13.3.1 Open

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

emscripten-core/emscripten#22692 · 1 comment · Opened Oct 8, 2024
Guidance on bindings Open

Difficulty 5/5 Over a week Newbie friendliness 18/100

emscripten-core/emscripten#22680 · 2 comments · Opened Oct 4, 2024
Invalid configuration `wasm32-unknown-emscripten': system `emscripten' not recognized Open

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

emscripten-core/emscripten#22676 · 3 comments · Opened Oct 3, 2024
MainModuleFactory function implementation missing with embind generated typescript Open

TypeScript

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

emscripten-core/emscripten#22657 · 3 comments · Opened Sep 30, 2024
Can I add -latomic to UNSUPPORTED_LLD_FLAGS? Open

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

emscripten-core/emscripten#22655 · 1 comment · Opened Sep 29, 2024
alext.h does not define macros for absent extensions Open

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

emscripten-core/emscripten#22649 · 4 comments · Opened Sep 27, 2024
Unable to dispose wasm instance. Open

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

emscripten-core/emscripten#22647 · 1 comment · Opened Sep 27, 2024
Unable to update emscripten version from 3.1.56 to 3.1.57 Open

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

emscripten-core/emscripten#22646 · 6 comments · Opened Sep 27, 2024
getaddrinfo behaves differently with loopback address Open

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

emscripten-core/emscripten#22633 · 4 comments · Opened Sep 26, 2024
test_pthread_c11_threads_proxied is flaky on Chromium CI Open

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

emscripten-core/emscripten#22617 · 2 comments · Opened Sep 24, 2024
Looking for a way to report unhandled c++ exceptions to 3rd party crash reporting system Open

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

emscripten-core/emscripten#22613 · 10 comments · Opened Sep 24, 2024
Module crashes webpack build due to use of `new URL('./', import.meta.url)` Open

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

emscripten-core/emscripten#22609 · 1 reaction · Opened Sep 23, 2024
Runtime Errors: "Alignment Fault" and "Memory Access Out of Bounds" Open

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

emscripten-core/emscripten#22606 · 1 comment · Opened Sep 23, 2024

emscripten-core/emscripten

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