Quick answer: Request your data from TikTok (Settings → Account → Download your data), save your drafts to your gallery, then download your best videos in HD with the bulk downloader and store everything in two places.
What to back up
- Posted videos, ideally in the best quality
- Drafts, which exist only on your phone
- Original sounds you recorded
- Captions and hashtags for reposting later
- Your data: followers, comments, messages, watch history
Step 1: TikTok's data export
Go to Profile → ☰ → Settings and privacy → Account → Download your data. Choose JSON or TXT and request it. TikTok prepares the file and notifies you when it is ready; download it promptly, because the link expires. Details in download all your TikTok videos.
Step 2: save your drafts
Drafts are deleted if you remove the app or switch phones. Open each draft, set it to "Only me" and post it, or use "Save to device" where available. See save drafts to gallery.
Step 3: HD copies of your best videos
Paste up to 20 of your video links at a time into the TikTok bulk downloader. You get clean MP4 files without the watermark, ready to repost.
Step 4: sounds and captions
- Save your original sounds as MP3 with the MP3 converter.
- Download auto-captions as text with the subtitle downloader.
- Copy your best captions and hashtags into a notes file.
Step 5: store it twice
Follow the simple rule: two copies, two places. For example, one on your computer or an external drive, and one in Google Drive, iCloud or Dropbox. Name folders by year and month so you can find things later.
How often?
Active creators: once a month. Casual users: before changing phones, before deleting the app, and once a year.