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Code Editor
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What is Online Code Editor?

Free online code editor with syntax highlighting. Write and edit HTML, CSS, JavaScript, PHP, Python, Java and more. Live HTML/CSS/JS preview. No installation needed. Developer utilities built for web developers, software engineers, and programmers. TekPulse's Online Code Editor is completely free — no signup, no ads in results, and no data stored on our servers.

How to Use Online Code Editor Online

  1. Select your language: HTML, CSS, JavaScript, PHP, Python, SQL, Markdown, and more
  2. Write or paste your code — CodeMirror provides syntax highlighting and auto-complete
  3. Click "Preview" to see a live rendered preview of HTML/CSS/JS side-by-side
  4. Format your code with the beautify button or download it with the correct file extension

Why Use TekPulse Online Code Editor?

CodeMirror-Powered Editor
Syntax highlighting for 12 languages including HTML, CSS, JavaScript, Python, Java and SQL
Live HTML/CSS/JS Preview
The Run button renders your code in an embedded iframe instantly — nothing is sent anywhere
5 Editor Themes
Switch between Dracula, Monokai, Material, One Dark and a Light theme
Download Your Code
Save your work as a file with the correct extension for your language

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Frequently Asked Questions

HTML, CSS, JavaScript, HTML+CSS+JS combined, PHP, Python, C/C++, Java, XML, Markdown, SQL, and Bash/Shell — with syntax highlighting, line numbers, code folding, and bracket matching for all.

Yes! Click "Preview" or "Run" to open a split-screen live preview. For HTML and HTML+CSS+JS, the preview renders your code instantly in an iframe. For JavaScript, it captures console.log output and displays it.

Click the "Download" button in the toolbar. The file is saved with the correct extension for your chosen language (.html, .py, .js, .php, etc.).

Ctrl+/ (or Cmd+/) to toggle comments, Tab to insert 2-space indent, and all standard text editing shortcuts. The editor is powered by CodeMirror which supports most standard IDE keyboard shortcuts.

Your code is in-memory while the tab is open. There is no cloud save, so download your code before closing the tab. You can also copy the code to clipboard with the Copy button.

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