Emscripten 6.0.7 is out! 🚀 github.com/emscripten-c...

Release 6.0.7 · emscripten-core/emscripten

What's Changed JavaScript library symbols can now use the __force and __export decorators to control inclusion and export visibility. (#27436) contrib.glfw3 port upgraded to use the latest version...

github.com

Emscripten 6.0.6 is out! 🚀 github.com/emscripten-c... Includes some build system simplifications (C++ linking now works like gcc/clang), library updates, and bugfixes.

Release 6.0.6 · emscripten-core/emscripten

What's Changed DEFAULT_TO_CXX is now disabled by default. This means that em++ is now required when linking C++ programs, matching the behavior of clang and gcc. The old behavior is still availabl...

github.com

Spent a while getting OpenMW, the open-source Morrowind engine, to compile to WebAssembly. The full game now runs in a browser tab at 60fps, entirely client-side. Genuinely wouldn't have been possible without @emscripten.org Thank you for the toolchain. morrowind.virtastic.app @kripken.com

Emscripten 6.0.3 is out! 🚀 github.com/emscripten-c... Includes SIMD and GROWABLE_ARRAYBUFFERS improvements.

Release 6.0.3 · emscripten-core/emscripten

What's Changed Fixed UTF8ToString with GROWABLE_ARRAYBUFFERS set. String decoding now copies the data when the heap buffer is resizable, just like it does in the shared memory case. (#27242) Added...

github.com

Ported by Emscripten!

Chris Brandrick@brandrick.bsky.social · 2mo ago

Half-Life 2, but it's running in a browser tab: hl2.slqnt.dev

Emscripten 6.0.1 is out! 🚀 github.com/emscripten-c... Includes support for Rust's wasm-bindgen, and the new Cross-Origin Storage browser API. Also we are now using Github releases (as in the link here)

Release 6.0.1 · emscripten-core/emscripten

What's Changed The ability to redirect JS compiler stderr using EMCC_STDERR_FILE was removed. These days you can use EMCC_DEBUG and/or EMCC_DEBUG_SAVE to preserve all the intermediate JS compiler...

github.com

The main Emscripten website has a brand new theme! emscripten.org Check it out and let us know if anything looks wrong or is broken.

Emscripten 6.0.0 is out! 🚀 github.com/emscripten-c... Includes a lot of modernization to things like browser support, dynamic linking, and windows launchers.

Emscripten 5.0.7 is out! 🚀 github.com/emscripten-c... Includes significant improvements to multithreading performance and support. Note that if you were using the low-level emscripten_futex_wait() API, as a result of these changes you now need to handle EINTR.

Emscripten 5.0.5 is out 🚀 github.com/emscripten-c... Includes a fix to multithreading logic that caused hangs in rare cases.

Emscripten 5.0.3 is out 🚀 github.com/emscripten-c... Includes port updates + cleanups

First @jupyter.org JupyterLite #Python notebook for serverless, in-browser #SageMath computations in algebraic combinatorics, using passagemath-combinat compiled to #WebAssembly with @emscripten.org passagemath.org/passagemath-... #OpenSource #Mathematics

Emscripten 5.0.2 is out! 🚀 github.com/emscripten-c... Includes some nice cleanups for no-longer-needed Node.js hacks.

Emscripten 5.0.0 is out! 🚀 github.com/emscripten-c... First release of the year, given a major version bump. Large LLVM update, new -sEXECUTABLE option, and Asyncify/JSPI improvements are among the changes since 4.0.23

Emscripten 4.0.23 is out! 🚀 github.com/emscripten-c... Includes improvements to Audio Worklet support.

Emscripten 4.0.22 is out! 🚀 github.com/emscripten-c... Includes source map improvements and link-time speedups

Emscripten 4.0.21 is out! 🚀 github.com/emscripten-c...

Emscripten 4.0.20 is out! 🚀 github.com/emscripten-c...

Some details about the Emscripten porting here: groups.google.com/g/emscripten...

LGR@lgr-yt.bsky.social · 10mo ago

Unreal Tournament can now be played IN A BROWSER dos.zone/mp/?lobby=ut Along with other late 90s PC FPS classics but yeah. UT99 in a browser window... just fantastic. Thanks to the r/LGR subreddit for letting me know about it!

Emscripten 4.0.19 is out! 🎉 github.com/emscripten-c... A major improvement for dynamic linking landed: the main module is built statically, without relocation overhead, making it smaller and faster. Only dynamic libraries now have relocation overhead. This makes dynamic linking much more useful 🚀

click "Play OnLine" to play an Emscripten-emulated version

CommodoreBlog@commodoreblog.uk · 10mo ago

Green Beret C16, Arlasoft, 2025. #Commodore #RetroGaming arlagames.itch.io/green-beret-... plus4world.powweb.com/software/Gre...

Emscripten 4.0.18 is out! 🚀 github.com/emscripten-c... - Better support for cross-origin hosting - WebGPU support is now via an external port, which is updated more frequently

Emscripten 4.0.16 is out! github.com/emscripten-c... Includes a bunch of work on modernization, dropping support for some older browsers, and moving embind towards (eventually) depending on C++17

Something I wanted in SDL3 for a long time just landed; you can make the SDL window just take up the whole browser window in Emscripten now. So instead of this: icculus.org/~icculus/ems... You can do this: icculus.org/~icculus/ems... Feels more friendly to browser games.

Useful tips for using Emscripten's MEMORY64 flag, which enables wasm64 (64-bit pointers in wasm), based on the experience of SQLite: github.com/emscripten-c... In wasm64 all pointers are BigInts and not Numbers, and JS treats those differently in various ways (reasonably, but it can be surprising)

Emscripten 4.0.15 is out! 🚀 github.com/emscripten-c... A long-requested change appears here: Source maps no longer force-enable other debug info (like the names section). This allows generation of source maps for a fully-optimized build (e.g. using it for stack traces from production)

Emscripten 4.0.14 is out! 🚀 github.com/emscripten-c... As part of our efforts to simplify and shrink code size, there are some changes here that you might notice if you use internal APIs, see the changelog.

QEMU 10.1 adds experimental Wasm support using Emscripten wiki.qemu.org/ChangeLog/10.1

Emscripten 4.0.13 is out! 🚀 github.com/emscripten-c... Some internal JS APIs (preload plugins) are being rewritten to use modern async style (if you maintain out-of-tree uses of those internal APIs, you may need changes). Also the file packager now supports ES6 imports.

Emscripten 4.0.12 is out! 🚀 github.com/emscripten-c... Includes a few minor API changes (see changelog), like using 64-bit indexes in statfs (needed for large filesystems)