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 16h
Merged PRs (30d): 117

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

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2038 open issues indexed

chrome browser consume memory keeps increasing Open

emscripten-core/emscripten#15558 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
test `interactive.test_glfw_cursor_disabled` is not working. Open

emscripten-core/emscripten#15570 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Bug with swab, unexpected result - fix Open

emscripten-core/emscripten#15578 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
How can Chrome's memory be reduced!!!! Open

emscripten-core/emscripten#15591 · 18 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
emscripten_async_wget2_data hangs instead of loading file Open

emscripten-core/emscripten#15593 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Should we ship NDEBUG (no asserts) versions of system libraries Open

emscripten-core/emscripten#15628 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Generate both sync and async modules Open

emscripten-core/emscripten#15633 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
function signature mismatch with thinLTO and iostreams since 3.0.0 Open

emscripten-core/emscripten#15638 · 27 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
OpenAL Streams go to AL_STOPPED state Open

emscripten-core/emscripten#15639 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Flake in test_pthread_attr_init_3_1 Open

emscripten-core/emscripten#15672 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
It would be great if Offscreen canvas and Audioworklet can work at the same time Open

emscripten-core/emscripten#15682 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Deprecate EMMAKEN_CFLAGS Open

emscripten-core/emscripten#15684 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Crash when object file was compiled with -fexceptions but linking with -fwasm-exceptions Open

emscripten-core/emscripten#15688 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Uncaught DOMException: Failed to set the 'width' property on 'HTMLCanvasElement': Cannot resize canvas after call to transferControlToOffscreen(). Open

emscripten-core/emscripten#15696 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Subscribe to MEMFS events Open

emscripten-core/emscripten#15697 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Embind’ed processing with nested threads hangs. Open

emscripten-core/emscripten#15698 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Proposal: Create `emld` entry point that can be called from clang as a linker (e.g. -fuse-ld=emld) Open

emscripten-core/emscripten#15703 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Why isn't there a `WebGPU.wasm` module or similar? Open

emscripten-core/emscripten#15710 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Use `_start` rather than `main` for the default entry point Open

emscripten-core/emscripten#15733 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Missed optimization with NaN values and "-O3 -ffinite-math-only" Open

emscripten-core/emscripten#15743 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`recv()` not working even for `tests/sockets/tcp_socket_echo_client.c` Open

emscripten-core/emscripten#15750 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Assertion `block->type.isConcrete() && singleton->type == Type::unreachable' Open

emscripten-core/emscripten#15768 · 20 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
the Module object should not be replaced during async compilation Open

emscripten-core/emscripten#15783 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Opportunities to reduce codegen size for emscripten exception handling Open

emscripten-core/emscripten#15788 · 16 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Doc request: How does emscripten MEMFS persist link information in IDBFS? Open

docs good first bug help wanted

emscripten-core/emscripten#15789 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
dlopen() documentation is wrong, and related issue should not be closed Open

docs good first bug help wanted

emscripten-core/emscripten#15795 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
wasmMemory cleanup Open

emscripten-core/emscripten#15813 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Remove stale tags Open

emscripten-core/emscripten#15816 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Rename `emscripten/heap.h` and functions like `emscripten_get_heap_size` Open

emscripten-core/emscripten#15817 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`test_emscripten_async_wget2_data` is failing consistently CI Open

emscripten-core/emscripten#15818 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`asan.test_rename` is failing under WASMFS Open

emscripten-core/emscripten#15820 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
__thread var not respecting initialization when compiled with -O3 Open

emscripten-core/emscripten#15825 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Performance difference with the native C++ environment. Open

emscripten-core/emscripten#15826 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
EM_ASM does not support 64 bit arguments Open

emscripten-core/emscripten#15828 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
MAIN_THREAD_EM_ASM compiles with BUILD_AS_WORKER, fails at runtime Open

emscripten-core/emscripten#15829 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
worker.js onmessage() captured an uncaught exception : runtimeError ：invalid index into function table Open

emscripten-core/emscripten#15833 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
emrun stdio performance Open

emscripten-core/emscripten#15839 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Unable to export c++ functions via EXPORTED_FUNCTIONS as they get namemangled and are unrecognized. Open

emscripten-core/emscripten#15841 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
OpenAL updateSourceSpace performance issue Open

emscripten-core/emscripten#15847 · 13 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
OpenAL performance issue on alListenerfv Open

emscripten-core/emscripten#15848 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
EMCMAKE is unable to find_package with a working CMakeLists.txt and an installed SDL2 library Open

emscripten-core/emscripten#15864 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Trying to pass i64 without WASM_BIGINT should warn or assert Open

emscripten-core/emscripten#15871 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
can't import memory when load my binary file Open

emscripten-core/emscripten#15877 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
there is no sound when play sound in safari by openal Open

emscripten-core/emscripten#15883 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
LSan misses leaks due to miscalculating active stack regions. Open

emscripten-core/emscripten#15887 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
No DynCalls in STANDALONE_WASM? Open

emscripten-core/emscripten#15894 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Unnecessary imports for MINIMAL_RUNTIME Open

emscripten-core/emscripten#15895 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
assertion failure when calling `terminateAllThreads` as a thread is finishing Open

emscripten-core/emscripten#15900 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
emscripten_fetch memory corruption Open

emscripten-core/emscripten#15907 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Number.prototype.value of requires that 'this' be a number Open

emscripten-core/emscripten#15908 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026

emscripten-core/emscripten

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