Explore 15 Free Online Linux Environments – Run a Full OS in Your Browser

For beginners who want to experiment with Linux without installing a virtual machine or a cloud server, the following fifteen free web services provide fully functional Linux or Unix environments that run directly in a browser.

1. DistroTest

DistroTest offers free online access to many Linux and Unix distributions. Choose a version, click the start button, and the system launches in a new browser window with VNC access. It supports full installation, package management, and even disk formatting. After shutdown the system resets to its default state.

Website: https://distrotest.net/ (2021 statistics: 373 OSes, 762 versions).

2. OnWorks

OnWorks hosts free online Linux Mint servers and other distributions such as CentOS, Fedora, Ubuntu, and Debian. It runs via a Chrome extension and provides a lightweight, feature‑complete environment.

Website: https://www.onworks.net/

Extension: https://chrome.google.com/webstore/detail/linux-mint-online-server/ohcdfkmeiinmedcnjfdpdmffmohlomjd

3. Webminal

Webminal is a free GNU/Linux terminal and IDE that lets users practice Linux commands, write Bash scripts, create MySQL tables, and learn languages like Python, C, Ruby, Java, and Rust. It also offers a “Webminal Play” video‑learning mode.

Online Linux/bash terminal – no installation required.

Practice file system commands, scripting, and database operations.

Storage: 100 MB, up to 1 000 files, max file size 1 MB.

Community sharing and collaboration features.

MySQL limits: up to 4 tables, <200 KB size, 200 queries/hour, 100 updates/hour, single connection.

Website: https://www.webminal.org/terminal/

4. Tutorials Point Coding Ground

An online coding platform supporting many languages and tools, including data‑science packages (Python, R, NumPy), programming languages (C, C++, Java, PHP, etc.), web technologies (HTML, CSS, JavaScript, VueJS), and various compilers/interpreters.

Example Bash script (multiplication table):

#!/bin/bash
# Filename: My multiplication.sh
# Date: 2021/12/30
sum=0
for ((a=1;a<=9;a++))
do
  for ((b=1;b<=$a;b++))
  do
    sum=$[$a*$b]
    echo -ne "$a*$b=$sum"
  done
  echo
done

Output:

"1*1=1"
"2*1=2""2*2=4"
"3*1=3""3*2=6""3*3=9"
... (continues up to 9*9=81)

Website: https://www.tutorialspoint.com/execute_bash_online.php

5. jsuix

JS/UIX provides a JavaScript‑based terminal that mimics a Unix system, including a virtual machine, shell, file system, and process management. It runs without plugins; use the open terminal button to start.

Keyboard shortcuts (US‑ASCII): Ctrl+Shift+Keypad 4/6/8/2 for arrow keys, Keypad 0 for backspace.

Guest login (no password) is available via the guest button.

Website: https://www.masswerk.at/jsuix/index.html

6. jslinux

JSLinux is a JavaScript‑written Linux emulator that runs in the browser, offering multiple system choices and the ability to compile and run code, though performance may vary.

Website: https://bellard.org/jslinux/

7. Copy.sh

Copy.sh emulates various operating systems (Arch Linux, FreeDOS, FreeBSD, OpenBSD, Windows 2000/98, etc.) in a browser. Users select a distro, customize options, and launch the environment.

Website: https://copy.sh/v86/

8. jor1k

jor1k is a JavaScript OpenRISC 1000 emulator that can run Linux in most modern browsers.

Website: http://s-macke.github.io/jor1k/

9. linuxcontainers (LXD Try‑It)

LXD provides container‑based Linux environments with full system images. The demo server offers a 30‑minute session, limited to 4 concurrent sessions per IP, 2 shared CPU cores, 512 MB RAM, and 5 GB disk.

Website: https://linuxcontainers.org/lxd/try-it/

10. Codeanywhere

Codeanywhere is a cloud IDE that can spin up a free Linux VM after registration. Users create a new connection, select an OS, and obtain a remote console.

Website: https://codeanywhere.com/

11. cocalc

cocalc offers a collaborative, real‑time Linux terminal that requires no local installation. Features include multi‑user sessions, script editing, file backup, copy‑paste between local and remote, and support for many languages (Bash, Python, R, PHP, Go, Node.js, C/C++, Rust, etc.).

Website: https://cocalc.com/features/terminal

12. linuxzoo

linuxzoo provides remote private Linux machines with root access for safe learning.

Website: https://linuxzoo.net/

13. jdoodle

jdoodle is an online compiler supporting over 76 languages, including a dedicated Bash shell environment.

Bash shell URL: https://www.jdoodle.com/test-bash-shell-script-online/

14. paiza.io

paiza.io is an online editor and compiler for many languages, also usable for shell scripting practice.

URL: https://paiza.io/projects/s0poMEX88nNR_Pd7IByIFQ?language=bash

15. Shellcheck

Shellcheck is a static analysis tool for Bash scripts, available online and as a command‑line utility on many platforms (Debian, Arch, Fedora, macOS, etc.). It helps detect syntax errors and best‑practice violations.

Example script (log rotation):

#!/bin/bash
DIRPATH='/tmp/jstack'
CURRENT_TIME=$(date +'%F'-'%H:%M:%S')
if [ ! -d "$DIRPATH" ]; then
    mkdir "$DIRPATH"
else
    rm -rf "$DIRPATH"/*
fi
cd "$DIRPATH"
while true; do
    sleep 3600
    pid=$(ps -ef | grep 'inceptor' | grep -v grep | awk '{print $2}')
    jstack $pid >> "jstack_${CURRENT_TIME}"
    dir_count=$(ls | wc -l)
    if [ "$dir_count" -gt 10 ]; then
        rm -f $(ls -tr | head -1)
    fi
done

Shellcheck output highlights warnings such as missing safety checks, use of pgrep instead of ps|grep, and quoting issues.

Online Shellcheck: https://www.shellcheck.net/#

GitHub repository: https://github.com/koalaman/shellcheck

Overall, these services dramatically reduce the time needed to set up a Linux environment for learning, testing, or development, though some require registration and may have limited command sets compared to a full VM.