It's very easy to save TikTok videos on your PC without watermarks when using TtkDown. Follow this path:
Visit TikTok: Go to your favorite browser and search for TikTok.
Click on a video: From the video you selected, you can browse its entire feed or use the search function to find the video.
Copy Video URL: It will appear when you click on the "Share" button of a video. A copy of the video link is just above it.
Open TtkDown: On a new tab, open the TtkDown website.
Paste Video Link: When you get to the download bar of TtkDown, paste the copied link.
Download: When you're done, click on the Download button.
TtkDown will process your video and remove the watermark, or download it directly to your PC if it's ready.