CSS editor that helps you code faster

Lightweight, AI-enabled editor for front end development

Rapid CSS editor is an HTML and CSS code editor designed to make you more productive. With Rapid CSS you can create modern HTML and CSS-based websites and user interfaces faster and easier. Coding is a breeze thanks to many intelligent features such as auto complete, code inspector, CSS checker, integration with AI assistant and instant built-in multi-browser preview. What's new in 2025?

Purchase Now
One-time fee of just $49.95

Why Rapid CSS?

  • Save time & boost productivity
    Rapid CSS combines speed of a simple text editor with the power of a full-size development suites allowing you to work faster and smarter.
  • Stay 100% modern
    Be up to date with the latest HTML5 and CSS3 specs and development trends. Easily create fluid CSS layouts and mobile websites.
  • Get the best package
    Just check the feature list and screenshots for what you get and then try it out. You will be surprised!
  • Unbeatable value
    Rapid CSS editor offers you the best features-to-price ratio. Guaranteed!

How is Rapid CSS better?

  • Faster startup
    Unlike with other HTML and CSS editors, Rapid CSS loads instantly.
  • Attention to detail
    Rapid CSS code editor features are carefully crafted with speed and productivity in mind.
  • No clutter
    Rapid CSS editor is quick, clean and lightweight. It very powerful, yet not stuffed with useless buttons or panels.
  • Superb FTP/SFTP/FTPS features
    Upload/update your online website files in a just few clicks.
  • A lot of integrated tools
    Syntax checkers, validators, debuggers, beautifiers, built-in CSS prefixer etc.

Beginner friendly CSS editor

Rapid CSS is a perfect HTML and CSS editor for learners. Thanks to its unique combination of simplicity and powerful features, Rapid CSS editor is used by many schools, universities and web development courses.

Choice for experts

Rapid CSS is the obvious style sheet editor choice for expert web designers, because it packs unique punch of features, speed, flexibility and value in a single HTML5 and CSS3 editor. You may also want to look into our more advanced editors.

Powerful AI features *

AI-powered assistant can help you generate, modify and optimize code automatically, as well as find answers and solve coding challenges right within the comfort of your code editor.


Detailed feature list

Text editor

  • Syntax highlighting
    HTML, CSS, JavaScript, PHP, ASP, XML, WML, Perl, SASS, LESS
  • Advanced text editor
    Line numbering, gutter, margin, word wrap, block select and more
  • Unicode support
    UTF-8, UTF-8 without BOM, UTF-16
  • Code minimap
  • Code folding
  • Line highlighting
  • Split editing
  • Macro recorder

Search & navigate

  • Go to anything
    Instantly jump to any file, symbol, word or line
  • Multi-highlighting
    All instances of the selected text are highlighted
  • Search and replace
    Quick search, detailed search, regular expressions, detailed results and more
  • Search and replace in files
  • Superb navigation
    Advanced bookmarks and quick jumps between recent places
  • Bracket highlighting
  • HTML tag highlighting
    Easily detect matching and missing tags

Keystroke savers

  • Auto brackets
  • Auto quotes
  • Smart Copy and Cut
    If nothing is selected, word at cursor is cut/copied (usual shortcuts)
  • Smart Paste
    If nothing is selected, word at cursor is replaced (default shortcut Shift+Ctrl+V)
  • Emmet plugin

AI-powered assistance *

  • Integrated AI-Chat / AI assistant
    ChatGPT 3.5, ChatGPT 4
  • Automatically write, modify, validate code
  • AI-prompt history & library
  • Quick, one-click commands
    Check, Explain, Simplify, Add Comments

Language tools

  • Code intelligence
    HTML and CSS
  • Code explorer/navigator
    HTML and CSS
  • Integration with online reference
    HTML and CSS


  • HTML and CSS inspector
  • HTML assistants
  • HTML tag auto-close
  • CSS assistants
    box editor, gradient editor, shadow editor
  • Inline color preview in CSS
  • Support for mobile development
    viewport assistant, CSS media queries
  • Support for Google fonts
  • HTML and CSS code beautifier
  • CSS prefixizer
  • CSS minifier
  • SASS and LESS support
  • Integration with W3 validators
    HTML and CSS
  • Integration with CSS HTML Validator
  • Integration with HTML Tidy for HTML5
  • Framework support
    Bootstrap 3, Bootstrap 4, Bootstrap 5

File management

  • Built-in file explorer
  • Edit/save directly on FTP/SFTP/FTPS server or quickly publish all changed files
  • Built-in FTP/SFTP/FTPS browser
  • Project management
    Maintain separate projects, search within project, publish changes with a single click
  • SVN and Git integration
    with TortoiseSVN and TortoiseGit
  • One-click HTML publishing
    Publish HTML file and all linked files (images, css, js) get uploaded too


  • Built-in preview
    Chrome and IE rendering, split-screen mode, screen-size testing
  • XRay for HTML/CSS
  • One-click preview in web browser
  • Preview via web server
    external or built-in

User interface

  • Flexible tab-based interface
    Draggable and dockable tabs, multi-monitor support
  • Quick interface switching
    Hide/show all side panels with a single key
  • Detailed customization
    Workspace layout, keyboard shortcuts, text editor behavior, toolbars and menus etc.

Plugin support

  • Add your own features by writing plugins
    plugins can be written in JScript and can utilize powerful Chromium engine
  • Plugin catalog


  • HTML color picker
    Pick-from-screen feature, file colors, project colors, color palettes, lightness adjustment, rgb/rgba/hsl/hsla support
  • Inline ToDo
    with TODO, FIXME and CHANGED markers
  • Multi-item clipboard
  • Code snippet library
    Code templates, assignable shortcuts
  • Easy settings import/export
  • Crash recovery system
  • Diff tool integration

Free Download

Download Rapid CSS editor

Purchase Now

One-time fee of just $49.95