WhatsApp uses simple characters around text to show emphasis. WhatsApp Message Formatter adds those characters for you and shows an approximate Preview. The preview is not a message sent to WhatsApp.

Format a test message

Replace Message with Ready to ship. Select only Ready, then press Bold. The message should become *Ready* to ship, while Preview shows Ready in bold. Press Copy message to copy the text with the asterisks; paste it into a draft to inspect it before sending. You can also select lines and press Bullet list or Numbered list to add a prefix to each line.

If nothing is selected, the emphasis buttons insert a pair of markers with the cursor between them, ready for typing. The list buttons work on the current line even without a selection. Preview follows this tool’s simplified formatting rules; check the actual result in WhatsApp, especially for combined or unusual markers. Do not put private chat content in a shared screenshot.

Where your input goes

Processing runs in your browser. The tool does not upload your input to ilham.dev.

For more background, read Text Formatting and Cleanup.

Questions you might have

Which markers does WhatsApp use?
An asterisk on each side for bold, an underscore for italic, a tilde for strikethrough and three backticks for monospace. They only take effect when the character touches text with no space, which is why the wrap button adds them snugly.
Do the buttons need a selection?
No. With nothing selected the markers are inserted as a pair and the caret is placed between them, so you can type the text afterwards. With a selection the markers go around it.
Can the preview differ from WhatsApp?
Slightly. The page renders the markers as HTML for a quick look, while WhatsApp applies its own rules, so an unusual nesting of markers may look a little different in the app. The copy button always gives you the plain text with markers.