What this tool does
Add Watermark to Image stamps a line of text onto a photo so you can mark it as yours before sharing it online. It helps photographers, designers, shop owners, and anyone who posts pictures and wants a quick copyright note or branding label without opening heavy editing software. Everything happens locally, so it works even on a slow connection.
How to use it
- Drop or select the image you want to watermark.
- Type your watermark text, for example a name or a copyright line.
- Choose a position: any corner or the center of the image.
- Drag the opacity slider to set how strong or faint the text looks.
- Drag the size slider to make the text larger or smaller.
- Watch the live preview update as you adjust, then download the result as a PNG.
A quick example
For a subtle copyright mark, type something like (c) Your Name 2026, set the position to the bottom right corner, lower the opacity until the text sits gently over the photo, and keep the size small. This adds protection without covering the part of the picture people actually want to see. If the watermark blends into a busy background, nudge the opacity back up or move it to a calmer corner.
This tool runs entirely in your browser. It is private, free, and needs no sign-up.
Frequently asked questions
- Will my image be uploaded to a server?
- No. The whole process runs in your browser, so your image never leaves your device and nothing is sent or stored anywhere.
- Can I control how visible the watermark is?
- Yes. The opacity slider lets you go from a bold, solid stamp to a faint, barely there line, and the size slider scales the text up or down.
- Where can I place the watermark?
- You can choose any corner or the center of the image. The live preview shows exactly where the text lands before you download.
- What file format do I get back?
- The tool exports a PNG, which keeps the text crisp and works everywhere you would use the original image.
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Last updated: June 17, 2026