Try Wren

Write and run Wren code directly in your browser. This playground uses WebAssembly to run a subset of Wren-CLI modules.

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                        Ctrl + Enter to run • Tab inserts spaces
                    

                


                
Available Modules

                
The following modules are available in this browser-based playground:


                

                    math
                    json
                    base64
                    bytes
                    datetime
                    strutil
                    html
                    markdown
                    argparse
                    wdantic
                    uuid
                    faker
                


                

                    
Note

                    
Some modules require system access and are not available in the browser, including: io, net, http, tls, sqlite, subprocess, os, and scheduler.

                


                
Learn More

                
This playground is a quick way to experiment. For full functionality, install Wren-CLI locally: