Option 1: Try F# on try.fsharp.org

logo TryFSharp enables you to try F# in an online editor/compiler without having to install anything on your computer. It includes example code for many of F#’s basic features. It’s based on the Fable 2 REPL.


Option 2: Try F# in repl.it

repl.it - Code and collaborate, without friction. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.


Option 3: Try Fable in the REPL

logo Try Fable in the REPL. Fable is a compiler powered by Babel that makes F# a first-class citizen of the JavaScript ecosystem.


Option 4: Try F# in Katacoda

Try F# in Katacoda. Learn new technologies using real environments right in your browser.


Option 5: Try F# in sharplab.io

SharpLab is a C#/VB/F# compiler playground, allows you to see compiled code including generated assembly code.


Option 6: Try F# on glot.io

logo Try F# on glot.io. An open source pastebin with runnable snippets and API.


Option 7: Try F# in CloudSharper

CloudSharper is an online web and mobile programming with big data and charting. Registration required.


Option 8: Try F# in Visual Studio Online

Visual Studio Online is an online service providing cloud-powered dev environments accessible from anywhere. It includes browser based IDE. F# support in VSO is powered by Ionide. Registration required, paid service.

Easiest way to get started with VSO is going to Ionide Playground repository and clicking VS Online - Create button


Option 9: Try F# in Bolero

Try F# in Bolero is an online F# playground running entirely in the browser using WebAssembly. Powered by Bolero.


Option 10: Try F# in Gitpod

Gitpod is an online service providing environments accessible from browser based IDE. F# support in Gitpod is powered by Ionide. Registration required, paid service, includes free OSS plan.

Easiest way to get started with Gitpod is going to Ionide Playground repository and clicking Open in Gitpod button