Linghu AI Basic processes one video at a time and repairs selected areas containing corner marks, text, logos and other watermarks. It runs locally in your browser, so the video does not need to be uploaded to our application server. Add multiple selections, give each one its own start and end time, and use keyframes to follow a moving watermark.
Analyzes and repairs the selected watermark area
The Basic version processes one selected video per run
Add several watermark-area selections to the same video
Set a separate start and end time for every selection
Reposition a moving watermark selection at specific times
The Basic version runs locally in your browser
Choose one MP4, MOV or other supported video
Add one or more selections to the same video
Set the start and end time for each selection, then run the repair
Save the processed video to your device
Process a local video file and repair the watermark directly in the picture
Select subtitles, titles or annotations and repair the background behind them
Repair the marked region while preserving as much picture clarity as possible
Process one video with several independently timed selections
Remove platform marks from videos generated by Doubao AI, Jimeng AI and similar tools
Track moving, bouncing or floating positions with keyframes and interpolate the path
| Feature | Basic (this page) | Professional (cloud) |
|---|---|---|
| Where it runs | Runs locally in the browser without uploading to our application server | Runs on a cloud server after upload and automatically exports the result |
| Cost | Free to use | First trial is free; later jobs use prepaid Professional usage packs |
| Limits | One video at a time in MP4, MOV or another browser-decodable format | Up to 120 seconds, 300 MB and 1080p per job |
| Area selection | Multiple selections with an independent start and end time for each one | Area mode for local marks and full-screen mode for widespread text or multiple marks |
| Animated Watermark | Keyframes mark positions and interpolate moving, bouncing or floating watermarks | Cloud processing includes dedicated handling for animated Doubao watermarks |
| Processing speed | Depends on local device performance and video size | Depends on the cloud queue and does not consume local computing resources |
| Best for | Common corner marks, text and logos when local privacy matters | Complex backgrounds, multiple marks and full-screen subtitles |
Linghu AI repairs the selected area while preserving as much clarity as possible. Small marks on simple backgrounds generally produce the best results.
Common formats your browser can decode are supported, including MP4 and MOV. MP4 is recommended for the best compatibility.
You can remove logos, text watermarks, corner marks and date stamps. Small marks on simple backgrounds work best; large marks over complex textures may leave traces.
Yes. Mark its position with keyframes at different times and the tool interpolates the path between them.
Yes. Use keyframes to identify the mark at different points, and the tool follows the interpolated path to repair moving, bouncing or rotating watermarks.
Yes. Add keyframes at several positions along the route. The tool interpolates the movement and repairs the affected area frame by frame.
Choose one video, add one or more watermark selections, set the start and end time for each one, then start the local browser-based repair.
Basic processes one video at a time, not a batch of videos. You can add multiple selections to that video and set an independent time range for each one.
The tool blends the selected area with nearby pixels. Small marks on simple backgrounds usually work well, but large marks or complex textures may leave visible traces.