Step 1: find the best version of the source
The first file you see in your Downloads folder may not be the best one. If the clip has been sent through a chat app, uploaded to social media or exported from an editor, it may already have been compressed. Look for the original AI-platform download when possible.
Processing the cleanest source gives the local reconstruction more useful detail around the visible mark and reduces the number of times the final video needs to be encoded.
Step 2: confirm resolution and orientation
Check whether the file is portrait or landscape and note its actual pixel dimensions. A common AI-story format is 1080×1920. Do not resize the video before cleanup unless you know the visible-watermark profile is designed for the resized version.
Step 3: identify the visible mark
A recent Gemini-style diamond and an older Veo-style visible mark are different profiles. If the tool offers a profile selector, choose the one that matches what you can actually see in the source.
Step 4: process locally and preview before saving
A browser-based workflow can keep the media on the device while processing supported visible profiles. After upload, let the file finish processing and check the preview before downloading the result.
For video, inspect several moments. A fixed watermark can overlap a different background every second, so the quality of the cleaned region may vary across the clip.
Step 5: avoid unnecessary edits after cleanup
If the output already has the correct dimensions and audio, do not put it through another editor just to “save it again.” Every lossy export can remove fine detail. Make additional changes only when the publishing workflow actually needs them.
What if the output is WebM?
Browser video processing often produces WebM. If your platform accepts it, you can keep it. If a client or editor requires MP4, convert one copy using a quality-focused encoder and retain the cleaned WebM as the master.
What if the visible mark is still partly there?
Stop and troubleshoot instead of processing the same file repeatedly. Confirm the resolution, profile and whether the source was compressed. If the mark is a new size or position, a newer cleanup profile may be needed.
Upload the original copy to the browser tool and test the supported visible profile before doing any extra conversion.
Clean an exported videoKeep the limitation clear
Visible cleanup and invisible provenance are different. The tool on this site does not remove SynthID. It also should not be used as a general-purpose method to strip ownership marks from media you do not control.
Only process media you own or are authorized to edit. This site targets supported visible Gemini and Veo watermark profiles and does not remove invisible provenance signals.