Online Tool Store
Source Code Highlighter with HTML Export
Paste source code, pick a language and theme, and get syntax-highlighted output you can copy or export as a self-contained styled HTML snippet. Runs entirely in your browser.
This works right here on your device — nothing gets sent out.
Example shown — replace it with your own snippet.
Highlighted preview
How the code highlighter works
- Paste your code and pick the closest matching language.
- Choose a dark or light theme for the preview.
- Copy the styled HTML, or download it as a standalone .html file.
FAQ
What can I do with the exported HTML?
Paste it into a blog post, documentation page, or email that accepts raw HTML — the colors and background are inlined as styles, so it renders correctly without needing a separate stylesheet.
Which languages are supported?
JavaScript, Python, HTML, and CSS get keyword-aware highlighting; a "Generic" mode covers other languages with comment, string, and number highlighting only.
Is this a full syntax parser?
No — it uses pattern matching for common keywords, strings, comments, and numbers, which covers most snippets well without needing a heavy parsing library in your browser.
Does my code get uploaded anywhere?
No. Highlighting happens instantly in your browser as you type, and the HTML export is generated locally — nothing is sent to a server.
How we compare
| Feature | Online Tool Store | Screenshot of an editor | IDE "export as HTML" plugin |
|---|---|---|---|
| Text stays selectable and copyable | ✓ | It's an image | ✓ |
| No install or plugin needed | ✓ | ✓ | Requires the IDE |
| Nothing uploaded anywhere | ✓ | ✓ | ✓ |
For a quick, copy-paste-friendly highlighted snippet without opening a full editor, the Online Tool Store Source Code Highlighter gets you there in seconds.