First of all, you can visit the website of tiktok.com, then by clicking on the trending menu link, you can open the tiktok's video list. If you want, you can also go to the video list by clicking on the given link.
Get the TikTok video link that you want to download (if you don’t know how to get your download link, read the instructions here).
Go to tikcd.com, and paste your download link.
Click the Download Tiktok Mp4 button.
Download video TikTok to your device.
It's working great.
Via: How to download tiktok video without watermark