Virtual Machine for the Web
This repository hosts the source code for https://webvm.io, a Linux virtual machine that runs in your browser.
WebVM is a server-less virtual environment running fully client-side in HTML5/WebAssembly. It's designed to be Linux ABI-compatible. It runs an unmodified Debian distribution including many native development toolchains.
WebVM is powered by the CheerpX virtualization engine, and enables safe, sandboxed client-side execution of x86 binaries on any browser. CheerpX includes an x86-to-WebAssembly JIT compiler, a virtual block-based file system, and a Linux syscall emulator.
Settings
.Pages
section.Github Actions
as the source.Actions
.Deploy
.Run workflow
and then once more Run workflow
in the menu.Deploy
workflow will start, click on it to see details.deploy_to_github_pages
job.You can now customize dockerfiles/debian_mini
to suits your needs, or make a new Dockerfile from scratch. Use the Path to Dockerfile
workflow parameter to select it.
From a local git clone
debian_mini
Ext2 image from https://github.com/leaningtech/webvm/releases/.
index.html
.
CMD
, ARGS
, ENV
and CWD
.DEVICE_TYPE
with "bytes"
.IMAGE_URL
with the name of the Ext2 image. For example "debian_mini_20230519_5022088024.ext2"
.The Deploy
workflow takes into account the CMD
specified in the Dockerfile. To build a REPL you can simply apply this patch and deploy.
diff --git a/dockerfiles/debian_mini b/dockerfiles/debian_mini
index 2878332..1f3103a 100644
--- a/dockerfiles/debian_mini
+++ b/dockerfiles/debian_mini
@@ -15,4 +15,4 @@ WORKDIR /home/user/
# We set env, as this gets extracted by Webvm. This is optional.
ENV HOME="/home/user" TERM="xterm" USER="user" SHELL="/bin/bash" EDITOR="vim" LANG="en_US.UTF-8" LC_ALL="C"
RUN echo 'root:password' | chpasswd
-CMD [ "/bin/bash" ]
+CMD [ "/usr/bin/python3" ]
Please use Issues to report any bug. Or come to say hello / share your feedback on Discord.
This project depends on:
WebVM depends on the CheerpX x86-to-WebAssembly virtualization technology. A link to the current latest build is always available at https://cheerpxdemos.leaningtech.com/publicdeploy/LATEST.txt. Builds of CheerpX are immutable and uniquely versioned. An example link would be:
https://cheerpxdemos.leaningtech.com/publicdeploy/20230517_94/cx.js
We strongly encourage users not to use the latest build. Please directly use a specific build to avoid unexpected regressions. Since builds are immutable, if they work for you now they will keep working forever.
WebVM is released under the Apache License, Version 2.0.
You are welcome to use, modify, and redistribute the contents of this repository.
The public CheerpX deployment is provided as-is and is free to use for technological exploration, testing and non-commercial uses. Downloading a CheerpX build for the purpose of hosting it elsewhere is not permitted.
If you want to build a product on top of CheerpX/WebVM, please get in touch: [email protected]