⚡ Image · Client-side · No data sent to server

Watermark Adder

Add a text watermark to any image. Set the text, font, size, color, opacity, and position, then download. Your image never leaves your browser.

100% private. Your image is decoded, watermarked, and re-encoded entirely in your browser with the native Canvas API. Nothing is uploaded, sent, or logged. Tip: export as PNG or WebP to keep transparency; JPEG fills transparent areas with a solid background.

About the Watermark Adder

The Watermark Adder stamps a text watermark onto an image so you can mark ownership, label drafts, or brand screenshots before sharing them. Type your text, set the font size, color, opacity, and position, and see the result update live on a canvas. It is built for photographers, designers, WordPress and WooCommerce store owners, and anyone who shares images online. Everything runs in your browser with the Canvas API, so your image is never uploaded.

How it works

  1. Drop an image onto the panel or click to browse. PNG, JPG, and WebP are supported.
  2. Type your watermark text and adjust the font size, color, and opacity.
  3. Pick a position from the 3x3 grid, or choose Tile to repeat the text across the whole image.
  4. Watch the live preview, then click Download to save the watermarked image.

Features

  • Live canvas preview that updates as you change any control.
  • Nine fixed positions plus a tiled, repeating mode for full coverage.
  • Controls for text, font, size, color, and opacity.
  • Choose the output format: PNG, JPEG, or WebP.
  • Runs fully in your browser with no uploads and no external libraries.

Frequently asked questions

Is my image uploaded anywhere?

No. The image is read, drawn, and re-encoded entirely in your browser using the Canvas API. Nothing is sent to a server or logged.

Which image formats can I use?

You can load PNG, JPG, and WebP images. You can also choose the output format when you download: PNG, JPEG, or WebP.

Does the watermark keep transparency?

If you export as PNG or WebP, transparent areas of the source image stay transparent. JPEG has no transparency, so transparent areas become a solid background when exported as JPEG.

What does the Tile option do?

Tile repeats your text diagonally across the entire image instead of placing it in one spot. This makes the watermark harder to crop out.

Will the watermark reduce image quality?

The image is re-encoded once on export. PNG is lossless. JPEG and WebP use a high quality setting, so any change is minimal at normal viewing sizes.

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