To use the converter, paste your Bootstrap 3 HTML code in the top text area and press the
Convert Code button.
Once ready, the converted code will appear in the bottom text area - there you can
Preview it and/or copy and paste it to your page.
NOTE: This utility provides basic conversion capabilities between Bootstrap 3 and 4 versions.
It is based on the unreleased Bootstrap 4 Alpha 5 version, mentioned in this document.
If some of your templates do not render properly after the conversion, refer to that document and manually update the markup of these elements.