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WebVM runs a Linux virtual machine in the browser, according to its repository description.
About Webvm
WebVM is an open source project that runs a Linux virtual machine inside a web browser. Its repository hosts the source code for webvm.io. The environment is server-less and runs fully client-side using HTML5 and WebAssembly, and it runs an unmodified Debian distribution that includes many native development toolchains. It is powered by the CheerpX virtualization engine.
WebVM can connect to a Tailscale network, which is optional and requires a Tailscale account. Once connected, it can reach machines on that private network. Internet access requires an exit node on another device in the same Tailscale network. Some low-level networking operations, including ICMP used by ping, are not currently available, so curl or wget are suggested for connectivity checks. Users have root privileges by default, but sudo is not installed.
Key features
- Runs an unmodified Debian Linux distribution in the browser
- Includes many native development toolchains
- Client-side execution using HTML5 and WebAssembly, without a server-side VM
- Optional Tailscale integration for reaching a private network
- Exit node setup for public internet access through Tailscale
- Supports self-hosted Headscale as the Tailscale control server
Best for: Developers and learners who want to use a Linux command-line environment in a browser without local setup.
Good for
- Starts at webvm.io with no setup required, according to the source
- Open source, with source code available in the repository
- Based on an unmodified Debian distribution with development toolchains
Watch out for
- ICMP operations such as ping are not currently available
- sudo is not installed by default
- Headscale use requires a reverse proxy to add CORS headers
Webvm at a glance
- Website
- github.com/leaningtech/webvm
- Category
- Software & Utilities › Linux & Mac Apps
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Webvm FAQ
How do I connect WebVM to a Tailscale network?
Open the Networking panel from the sidebar, click Connect to Tailscale, log in (a free Tailscale account can be created if needed), and click Connect when prompted.
Can WebVM access the public internet?
Yes, after an exit node is set up on another device in the Tailscale network. WebVM uses the exit node automatically once it is advertised.
Can I use ping to check connectivity in WebVM?
Not currently. Some low-level networking operations, including ICMP used by ping, are not available. The source suggests using curl or wget instead.
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