Run Python 3.x code online
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16,546,127+ code runs by developers and learners worldwide
A complete workspace for every step of your coding journey
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A complete coding workspace in your browser
Move from a quick snippet to a multi-file project without changing tools. CodeUtility combines flexible runtimes, a capable editor, persistent files, and built-in assistance.
Run where it fits
Use an isolated execution server with full workspace access, or run supported languages locally in a browser worker. Stop long runs and switch modes when needed.
AI coding assistance
Ask the AI assistant to explain the active program, clarify unfamiliar logic, and revisit recent explanations and assisted results from the editor.
Debug and fix code
Set breakpoints and step through supported browser runtimes, then use Fix Code to identify problems and apply a suggested repair without leaving the editor.
Professional code editor
Work with syntax highlighting, multiple tabs, search and replace, formatting, configurable themes and fonts, plus focused Minimal and full Advanced layouts.
A real multi-file workspace
Create files and folders, upload or download assets, and let programs interact with workspace files. Signed-in users can keep projects available across sessions.
Share and collaborate
Share a file, directory, or complete workspace as a snapshot or live project, with access controls, saved activity, chat, and collaborative editing.
Install libraries and packages
Inspect what is already preinstalled, then add private packages for your account and selected runtime. Cached downloads make repeated setup faster.
Code and run history
Revisit revisions of the active file and move through saved run outputs. Compare earlier work and copy a previous result without running the program again.
Interactive terminal
Enter standard input while a program runs, watch output as it arrives, copy results, and stop long-running jobs directly from the executor.
Browser execution and debugging depend on the language and runtime. Persistent workspaces and some assisted features require sign-in, and usage limits apply.