Triplety is an HTML, CSS, and Javascript playground for Web designers and developers. With Triplety, you can save the hassle of writing boilerplate code. Your code works with live preview and live reload.
Features:
Built-in Preview with live reload
Local HTTP server with live reload for external browsers (Live reload for modern browsers including iOS4.2+)
Auto-completion HTML, CSS and Javascript
Support LESS, SCSS+Compass and CoffeeScript
Importing
CSS libraries
Javascript libraries
Resource files (e.g., PNG images)
Your own Triplety's project
Live CSSLint, JSHint
Beautify HTML, CSS, and Javascript
Exporting Triplety’s project
Full Retina support
What’s new in version 1.0.5
Version 1.0.5:
Support macOS Big Sur
Support dark mode
Support modern javascript
Support modifying script type
Add React and Vue sample projects
Fix bugs
Triplety for Mac
$19.99
In English
Version 1.0.5
What users say about Triplety
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Basically jsfiddle in app form. I think it's really convenient, just wish you there was better extension support for themes and keyboard shortcuts or beautifying code. Also if it was saved in a folder system vs a triplety project file, then it would be better to be able work on it from multiple editors.