H5Kit

Image Watermark

Free online text watermark tool: tile or place a single watermark with custom angle, color, opacity and density. Runs locally in your browser — no upload.

About this tool

Protect your photos and designs with a custom text watermark. Tile it across the whole image at any angle and density, or place a single watermark in any corner or the center — with full control over color, opacity and size. Everything is rendered locally in your browser, so your images never leave your device.

How to use

  1. Click or drag to select an image
  2. Type your watermark text and pick tiled or single mode
  3. Adjust the angle, color, opacity, size and repeat density — the preview updates in real time
  4. Click download to save the watermarked image

FAQ

Tiled or single watermark — which should I use?

A tiled watermark repeats across the whole image and is hard to crop out, making it the best choice for theft protection. A single watermark in a corner is subtler and better for branding or attribution.

What settings make a watermark effective but unobtrusive?

Use a low opacity (10%–30%) and a moderate size. For tiled watermarks, an angle of -30° or -45° with a spacing of 2–3× covers the image evenly without overwhelming it.

Are my images uploaded to a server?

No. All rendering runs locally in your browser. Your files never leave your device.

Can I use an iPhone HEIC or HEIF photo?

Yes. HEIC and HEIF photos are decoded locally in supported modern browsers and exported as JPG, PNG or WebP.

Related tools