Let's be clear up front: QQ does not support markdown formatting inside chat messages. But markdown is still genuinely useful around QQ — as the format for your own notes and logs. Here is the workflow power users rely on.
Some developer-focused messengers render markdown in messages. QQ is not one of them — it uses its own rich text, stickers and emoji. So if you came looking to type markdown into a QQ chat, that simply isn't a feature. What works brilliantly, though, is using markdown for everything around QQ.
Keep a single plain-text markdown file as your personal QQ log. Because it is just text, it opens anywhere, syncs through any cloud folder, and will still be readable in ten years — unlike data locked inside an app.
Structure your note with a heading per area — Account, Groups, Contacts, Setup — and a short bulleted list under each. Update it whenever you join an important group or change a setting. That's the entire system: low-effort, high-payoff, and completely independent of QQ itself.
No. QQ messages do not support markdown formatting the way some developer-focused chat tools do. QQ uses its own rich text, stickers and emoji instead. Markdown is useful with QQ as a way to keep your own notes, not to format chat messages.
Power users keep a plain markdown file as a personal log: their QQ number, important group IDs, contact notes and setup details. It is portable, future-proof plain text that makes reinstalling or moving devices effortless.
Keep the markdown file with your QQ vault backup, in a cloud-synced folder or a private repository. The point is that it lives outside QQ, so it survives any reinstall and is readable on any device.
Download QQ, then keep a tidy markdown log beside your backup.