Video Watermark
Add text or logo watermarks to videos with tiling, corner, or center placement. All processing happens locally in your browser — no file uploads, fully private and free.
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点击选择，或把视频拖到这里
给视频加文字或 Logo 水印，可平铺/四角/居中 · 全程本地处理，不上传服务器
FAQ
Supports text and image watermarks?
Yes. Text watermarks allow custom content and color; image watermarks let you upload a logo (recommended as transparent PNG). Both support position, opacity, and size adjustments.
How to use tiled watermarks?
Select "Tiled" to cover the entire video with semi-transparent watermarks, ideal for preventing theft or unauthorized sharing.
Why are there size and duration limits?
Watermarking requires re-encoding, which is slower in the browser. Limits are set to ≤5 minutes or 500MB; for longer videos, consider trimming with the "Video Trim" tool first.
Are files uploaded to servers?
No. All watermarking is done entirely within your browser — your video never leaves your device.
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