Brand lesson clips, demos, and social drafts
A small logo in the corner helps viewers know who made the video without covering the whole frame. Use modest size and opacity so slides, faces, and product details stay readable.
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Video Tools
Video Watermark
Add a logo or image watermark to video in your browser. Upload one MP4, WebM, MOV, or other clip plus a PNG or JPG watermark, preview placement while the video plays, tune size, opacity, position, and margin, then export a watermarked MP4. Your files stay on your device. Free to use with no account or card needed.
Drop your watermark image here
PNG with transparency works best. JPG, WebP, and GIF also supported
Drop your video here
One video at a time. Export downloads automatically when finished.
- Free to use
- No account required
- Files stay in your browser
- Live watermark preview
- MP4 export in your browser
Typical export wait
Exports re-encode the full video in your browser. A 1-minute 1080p clip often takes about 2 to 5 minutes on a typical laptop, sometimes longer on slower devices. The first export in a tab also loads the conversion engine (often about 10 to 30 seconds).
Need more than a free tool?
Vidsembly helps creators turn ideas into finished video content, from draft to publish, in one place.
Frequently asked questions
How do I add a watermark to a video online?
Upload a watermark image (PNG with transparency works best), add your video, adjust size, opacity, position, and margin while you preview the clip, then click Export with watermark. Your watermarked MP4 downloads automatically when processing finishes.
Is this video watermark tool free?
Yes. It is free with no account, card, watermark on the export from Vidsembly, or desktop software required.
Are my videos uploaded to a server?
No. Preview and export run locally in your browser using FFmpeg compiled to WebAssembly. Your videos and logo files are not sent to Vidsembly for processing.
What image formats work as a watermark?
PNG, JPG, WebP, and GIF are supported. PNG with a transparent background is usually best for logos because the video shows through cleanly behind the artwork.
Can I preview the watermark before exporting?
Yes. The player shows a live preview while you adjust size, opacity, corner or center placement, and margin. Use Compare original to check the source clip.
How long does watermark export take?
Export re-encodes the full video in your browser, so wait time depends on clip length and resolution more than file size on disk. A 1-minute 1080p clip often takes about 2 to 5 minutes on a typical laptop. The first export in a tab also loads FFmpeg (often about 10 to 30 seconds).
What video formats are supported?
MP4 and WebM usually work best in modern browsers. MOV, AVI, MKV, M4V, WMV, FLV, OGV, MPEG, MPG, and 3GP files are also accepted when the browser and FFmpeg can read the source codec.
About this tool
Preview placement while the video plays
Scrub through the timeline to confirm the watermark sits where you want on every frame. Corner presets and margin controls keep logos away from captions and UI chrome.
PNG logos with transparency
Transparent PNG files blend cleanly over video. JPG and WebP also work when you only need a simple logo matte.
Private browser-based export
Draft videos and unreleased logos often stay sensitive until launch. Processing on your device avoids sending source files to another service for a straightforward overlay pass.
Typical export wait times
Watermark export is a full re-encode, similar to other Vidsembly video tools. A 1-minute 1080p clip often needs about 2 to 5 minutes on a typical laptop. Longer clips take proportionally longer. Leave the tab open while encoding runs.
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