emscripten-core

emscripten-core/emscripten

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

Open All

2038 open issues indexed

How to deprecate and/or remove unused runtime and JS library functions? Open

emscripten-core/emscripten#15242 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Files uploading into Virtual File System with -s CASE_INSENSITIVE_FS=1 Open

good first bug help wanted

emscripten-core/emscripten#15245 · 19 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
DOC Optimizing WASM browser compilation time Open

docs good first bug help wanted

emscripten-core/emscripten#15249 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
why web assembly can invoke c library function?? Open

emscripten-core/emscripten#15253 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Crash on iOS Safari wasm - two references to the same object return different values from trivial accessor for a primitive field. Open

emscripten-core/emscripten#15254 · 3 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
-g3 .wasm size after strip-debug does not equal size with -g0 Open

emscripten-core/emscripten#15269 · 33 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
behave normally when use cmake and make, make an error when use emcmake and emmake Open

emscripten-core/emscripten#15270 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Compile numpy 1.19+ gives function signature mismatch Open

emscripten-core/emscripten#15272 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Automatic resumption of AudioContext doesn't work well on Safari Open

emscripten-core/emscripten#15274 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
change the name of var "Module" in js? Open

emscripten-core/emscripten#15275 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Web File System Access API Open

emscripten-core/emscripten#15277 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
On iOS Safari mobile keyboard, SDL keyboard fails to return any of :()$&@"?!'[]=\' (15 characters) Open

emscripten-core/emscripten#15285 · 13 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Create a transition path for converting Runtime functions to library functions. Open

emscripten-core/emscripten#15295 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
issue finding node.exe Open

emscripten-core/emscripten#15300 · 20 comments · 3 reactions · 0 assignees · Indexed Sep 15, 2026
How do I locate where metux deadlocks are located Open

emscripten-core/emscripten#15313 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Blob construction fails with pthreads enabled... Open

emscripten-core/emscripten#15314 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Incorrect decoding from JS strings to USV strings Open

good first bug help wanted

emscripten-core/emscripten#15324 · 8 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Emscripten produces very large binaries at the default "-g" debug level Open

emscripten-core/emscripten#15346 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
__user variables leak to the build Open

emscripten-core/emscripten#15348 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
"ReferenceError: makeGetSlabs is not defined" while compiling to js Open

emscripten-core/emscripten#15355 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Updating default wasm features Open

emscripten-core/emscripten#15376 · 25 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add a 4GB debug validation mode? Open

emscripten-core/emscripten#15382 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
I see the warning too, but I never get anything but a black screen for the browser version. I've tested only with Chrome. Are you by any chance using a different browser? Open

emscripten-core/emscripten#15393 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
How to load emscripten-generated.js files in webworker? Open

emscripten-core/emscripten#15397 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Black screen using SDL2 OpenGL ES 3, problem with strings Open

emscripten-core/emscripten#15400 · 3 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Access to script at 'file:///F:/M/JSPlay.js' from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, chrome-untrusted, https. Open

emscripten-core/emscripten#15405 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
File system which reads/writes to indexeddb without syncing with memfs Open

filesystem

emscripten-core/emscripten#15412 · 6 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
glTex(Sub)ImageX functions cannot upload float data from memory beyond 2GB address space Open

emscripten-core/emscripten#15416 · 14 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Unable to use ThinLTO Open

emscripten-core/emscripten#15427 · 16 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ICE with ThinLTO Open

emscripten-core/emscripten#15432 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Accessing the Emscripten cache at "...emsdk\upstream\emscripten\cache" is taking a long time, another process should be writing to it Open

emscripten-core/emscripten#15440 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
How could I read a '-s' option in file_packager.py? Open

emscripten-core/emscripten#15444 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ICE when function return type is std::true_type Open

emscripten-core/emscripten#15447 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
[Feature request] Allow loading data from browser storage (IndexedDB/other) to avoid re-downloading files Open

filesystem

emscripten-core/emscripten#15448 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
import #0 module="env" error:module is not an object or function Open

emscripten-core/emscripten#15459 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Enable function names by default in all test suites? Open

emscripten-core/emscripten#15470 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Exposing nested public symbols in Module Open

embind

emscripten-core/emscripten#15474 · 8 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
What impact does using the compile option -s SINGLE_FILE=1 have on performance or functionality Open

emscripten-core/emscripten#15482 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
SIDE_MODULE imports increases dramatically after 2.0.32 Open

emscripten-core/emscripten#15487 · 25 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
SDL creating window corrupts heap when compiled with -g Open

emscripten-core/emscripten#15489 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Linking IDBFS in CMake project requires -lidbfs.js in compilation flags, but warns anyways Open

emscripten-core/emscripten#15491 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
A couple of asan tests have started failing since the musl upgrade (#13006) Open

emscripten-core/emscripten#15498 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Cleanup unused / unreferenced files under tests/ Open

emscripten-core/emscripten#15511 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Simplify decodeBase64 polyfill if drop IE9? Open

emscripten-core/emscripten#15518 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
can we choose the play device if there is two play devices ? Open

emscripten-core/emscripten#15523 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
in memfs, canOwn flag causes entire file to be overwritten Open

emscripten-core/emscripten#15534 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
failed to asynchronously prepare wasm: CompileError : WebAssembly.instantiate():expected 5201903 bytes, fell off end @+13 Open

emscripten-core/emscripten#15537 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
still waiting on run dependencies: dependency: wasm-instantiate , end of list Open

emscripten-core/emscripten#15548 · 7 comments · 5 reactions · 0 assignees · Indexed Sep 15, 2026
worker.js onmessage() captured an uncaught exception: RuntimeError: memory access out of bounds Open

emscripten-core/emscripten#15549 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Invalid `DW_AT_ranges` for some inlined functions Open

emscripten-core/emscripten#15552 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026

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