Blogger Code Box Generator
Turn source code into a styled, self-contained code box you can paste into a Blogger post.
Configurator
Paste this code block directly into Blogger's **HTML View** panel in your editor window.
Paste your source code and get back a polished, syntax-highlighted code box as a single block of HTML — ready to drop straight into a Blogger post or any blog editor. Choose a colour theme, add a filename header, line numbers and a copy button, and preview it live before you export. Because it's built for platforms that strip out stylesheets, the styling travels with the markup. It all runs in your browser.
Built for platforms that strip your CSS
Blogger and many hosted blog editors remove <style> blocks and CSS classes when you save a post, which is why code copied from a normal editor loses its formatting. This generator sidesteps that by writing the styles inline on the elements themselves, so the code box keeps its colours, spacing and rounded corners wherever you paste it — no theme edits and no external stylesheet required.
Themes and options
Pick from popular editor themes — VS Code Dark, Dracula, Monokai, GitHub Light and Solarized Dark — to match your blog's look. A filename header adds a title bar like a real editor tab, line numbers help you reference specific lines in your write-up, and an optional copy button lets your readers grab the code in one click. You can also set the corner radius and shadow so the box sits comfortably in your layout.
About the highlighting
The tool recognises JavaScript, HTML, CSS and Python, with a generic mode for anything else. The highlighter colours the common building blocks — keywords, strings, comments and numbers — which is what makes code readable at a glance. It's a lightweight highlighter rather than a full language parser, so unusual or deeply nested syntax may not be coloured perfectly, but for typical snippets it produces clean, professional-looking results.
Frequently Asked Questions
Why does normal code formatting break on Blogger?
Blogger and similar platforms strip out <style> blocks and CSS classes when saving. This tool writes styles inline on each element, so the formatting stays intact after you paste.
Which languages are supported?
JavaScript, HTML, CSS and Python have dedicated highlighting, plus a generic mode for other languages. The highlighter colours keywords, strings, comments and numbers.
Can readers copy the code from the box?
Yes, if you enable the copy button option. It adds a button to the box so visitors can copy the snippet in one click.
Will the highlighting be perfect for every snippet?
It handles common code well, but it is a lightweight highlighter rather than a full parser, so unusual or deeply nested syntax may not be coloured perfectly. Preview the box before publishing.