How to detect and tag code block languages
- Step 1Drop your doc — Paste Markdown containing untagged code blocks.
- Step 2Tag languages — Click Run — each untagged block gets the detected language.
- Step 3Render with highlighting — Code blocks now have syntax highlighting.
Frequently asked questions
What languages can it detect?+
Python, JavaScript, TypeScript, Rust, Go, SQL, JSON, HTML, C++, PHP.
Will it overwrite existing tags?+
No. Already-tagged blocks are left untouched.
What if detection is wrong?+
Manually correct the tag after running.
Privacy first
All Markdown processing runs locally in your browser using JavaScript. No file is ever uploaded to JAD Apps servers — only metadata counters are saved for signed-in dashboard stats.