Free image tool
Watermark Image Tool
Add a text watermark to product photos, social graphics, portfolio images, and previews. Your image stays in your browser and exports as a normal image file.
Runs locally in your browser. TinyToolbox does not upload your image. A watermark helps signal ownership, but it is not a strong anti-theft system.
Add a watermark without uploading your image
This tool draws your chosen text directly onto the image in your browser, then prepares a downloadable JPG, PNG, or WebP file.
Good watermark settings
- Use 35–60% opacity for a visible but not distracting watermark.
- Keep the text short: a brand name, handle, website, or copyright note.
- Use center placement for previews; use a corner for photos you still want people to enjoy.
Related image tools
After watermarking, you may want to compress the image, resize it, or convert it for the platform where you will post it.