Full Chinese support
Text is rendered into an image layer before compositing, so Chinese, English, digits and symbols all display crisply.
Stamp a line of text onto your video — full Chinese support, nine-grid positioning, adjustable opacity and size for attribution and anti-theft — and the tool never forces its own watermark onto your export.
Privacy-sensitive steps are processed in your browser, and data is destroyed when you close the page.
Clean exports with no watermark or hidden marks added.
Runs right in your desktop or mobile browser — no download needed.
Sign in with your WUJIEE account to use it for free, watermark-free.
Privacy-sensitive steps run in your browser, and data is destroyed when you close the page. Work on private footage, business assets and course recordings with confidence.
Text is rendered into an image layer before compositing, so Chinese, English, digits and symbols all display crisply.
Corners, edges or dead center — nine positions, one click.
From a subtle ghost mark to a bold brand stamp — opacity and font size are freely adjustable.
Sign in and upload a video
Enter the watermark text, set position, opacity and size
Process and download
In the Add Text Watermark tool in WUJIEE Video Tools, type your watermark text (a signature or brand name), pick a position from the nine-grid, adjust opacity and font size, and export. Many "free watermark" tools actually stamp their own site watermark onto your export — this one won't, so your export carries only the watermark you set.
Lower the opacity (say 30%–50%) and place it in a corner to keep the copyright mark while barely affecting viewing; for stronger anti-theft, raise the opacity, enlarge the font and put it in the center. Both opacity and font size are freely adjustable, so tune to your use.
Text watermarks are supported today: the text is first rendered into an image layer and then composited onto the picture, so Chinese, English, digits and symbols all come out crisp, looking just like an image watermark. Positioning is a single nine-grid point; full-frame tiling isn't supported yet, but for stronger anti-theft you can enlarge the font and center it.
Watermark compositing runs with ffmpeg.wasm in your browser: key data is processed locally, your data is destroyed when you close the page, and neither the video nor the watermark text is used for anything else. Processing takes roughly 0.5–2× the video's duration.
It adds watermarks: it helps original creators mark their own videos, tutorials and footage for attribution and anti-theft. It does not remove other people's watermarks.
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