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...

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

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)

Emscripten 4.0.11 is out! 🚀 github.com/emscripten-c... Among other changes, this includes support for LLVM's source-based code coverage: clang.llvm.org/docs/SourceB...

Emscripten 4.0.10 is out! 🚀 github.com/emscripten-c... Includes LLVM library updates, better support for pkg-config, and lots of cleanups.

Nice and detailed video about porting games to the Web using Emscripten and WebAssembly. Good summary of the things that port easily, and the things that don't (e.g. DirectX), and possible solutions. www.youtube.com/watch?v=xMve...

Emscripten 4.0.9 is out! 🚀 github.com/emscripten-c... Includes 64-bit integer handling fixes in several JS interop APIs (see changelog for more)

Emscripten 4.0.8 is out! 🚀 github.com/emscripten-c... The wasm workers and audio worklets features no longer generate files on the side (.ww.js, .aw.js, respectively). Bundling the worker content in the main .js file improves code size and startup times.

Emscripten 4.0.7 is out! 🚀 github.com/emscripten-c... Note that as the changelog mentions, there are some API changes to improve consistency and default code size. Most users should not be affected, but see the changelog for what might require a small modification.

JSPI, the wasm JavaScript Promise Integration proposal, is now at phase 4: github.com/WebAssembly/... That means it is considered fully standardized. JSPI lets wasm call JS APIs that return a Promise. The wasm awaits it. It is still behind a flag in most browsers, but hopefully not for long!

Emscripten 4.0.6 is out! 🚀 github.com/emscripten-c... Includes improved source maps support for easier debugging.

Emscripten 4.0.5 is out! 🚀 github.com/emscripten-c... Mostly cleanups and fixes. Work continues on WasmFS. There is experimental support for wasm source imports, github.com/tc39/proposa...

Emscripten 4.0.4 is out! 🚀 github.com/emscripten-c... This release includes ports of SDL3 and Lua.

Thank you, Jeopardy! This clue embiggened our hearts.

Emscripten 4.0.3 is out! 🥳 github.com/emscripten-c... Mostly fixes this time.

I got Linux running in a PDF file using a RISC-V emulator. PDFs support Javascript, so Emscripten is used to compile the TinyEMU emulator to asm.js, which runs in the PDF. It boots in about 30 seconds and emulates a riscv32 buildroot system. linux.doompdf.dev/linux.pdf github.com/ading2210/li...

📢 Scaling multithreaded #WebAssembly applications with mimalloc and WasmFS, by @kripken.com: web.dev/articles/sca.... If you have a multithreaded #Wasm application that does lots of allocations or uses files, then you may benefit greatly by using WasmFS and/or mimalloc.

Emscripten 4.0.2 is out! 🥳 github.com/emscripten-c... Wasm exception handling with exnref now uses LLVM rather than a translation from the old non-exnref code. This should only be noticeable as smaller and more efficient code, but it is a large change, please file issues if you see any problems.

Being used to the npm package hell it's kinda weird when an important software I use everyday (the Emscripten SDK) has a major version bump after 3 years from 3.x to 4.0 and nothing breaks :D Congratulations @kripken.com (and the whole Emscripten team)!

Emscripten 4.0.1 is out! 🥳 github.com/emscripten-c... Includes a few fixes after the recent 4.0.0 release.

Draft PR for Emscripten + wasm-bindgen support, with the goal of compiling C++ and Rust together into a single wasm file, with full library support for both languages: github.com/emscripten-c...

Nice video that shows how to port SFML apps with Emscripten so they run on the Web: www.youtube.com/watch?v=1kiw...

Emscripten 4.0.0 is out! 🚀 github.com/emscripten-c... Many changes this time, including the major version number bump (mostly symbolic). Most importantly, several wasm features w/wide support are enabled by default for better code: bulk memory ops, nontrapping float to int, and js-bigint.

I made a Doom source port that runs within a PDF file. PDFs support Javascript, so Emscripten is used to compile Doom to asm.js, which is then run within the PDF engine. Input/output is done by manipulating text input fields. doompdf.pages.dev/doom.pdf github.com/ading2210/do...

Your OSS pull request don't need to be major ones. Noticed a document that needed to be updated so I created this PR: github.com/emscripten-c.... It got merged within 15 minutes. I think this is my first PR for the @emscripten.org repository. I am using it for the #WASM version of @imagemagick.org

to use wasm64 in Emscripten, just compile and link with emcc -sMEMORY64 (wasm64 and memory64 are effectively synonyms)

Doom CAPTCHA a joke, but the game is compiled by Emscripten and fully functional! doom-captcha.vercel.app

Unity's Emscripten export gets WebGPU support! Fun fact: Unity's first (non-plugin) Web export, which used asm.js+Emscripten, was nicknamed "WebGL". Later it got Wasm support (through Emscripten updates), and lots of other changes, but this is the first time the WebGL part is changing.

Emscripten 3.1.74 is out! 🥳 github.com/emscripten-c... Various filesystem improvements, as well as many internal simplifications (and code size wins) due to no longer supporting very old browsers.

Very cool, and uses Emscripten under the hood!

Please let us know what older browsers you run Emscripten builds on, as we are considering dropping support for some very old ones: groups.google.com/g/emscripten... (posting here or there is fine)

Very cool video about porting an SDL2 game to SDL3! Emscripten part starts at 1:18:50 You can see the game running in a browser at 1:25:53

Emscripten 3.1.73 is out 🚀 github.com/emscripten-c... Aside from bugfixes, this includes some standard library updates for LLVM and mimalloc.

Just pushed my WebGPU gfx backend to production. Took 21 days to develop in total: native Dawn Mac + Windows first, then Emscripten for web. Runs really smoothly on the browser and the page load is super fast. Zero issues on Mac, Windows or Chrome. Safari Tech Preview has some flickering tris.