Image Watermark

The Image Watermark is a free online image and media tool that lets you add text watermarks to images with custom font, size, opacity, and position. It runs entirely in your browser, which means your data is never uploaded to a server — everything stays private on your device. There is no account required, no file-size limit that matters for everyday use, and no ads or paywalls in the way.

How to use it

Upload a file by clicking the upload area or dragging and dropping. The tool processes it instantly in your browser. The output is ready to copy to your clipboard with a single click, or you can download it as a file.

When it comes in handy

This tool is useful for extracting information from uploaded images, converting between image formats and representations, and working with image data for development projects. Anyone who works with text or data regularly — writers, developers, marketers, students, and data analysts — will find it saves time compared to doing the same task manually or installing dedicated software.

Why use this over alternatives

Desktop applications and IDE plugins can do similar things, but they require installation, configuration, and often a learning curve. This tool loads instantly in any browser, works on any device including phones and tablets, and handles the job in one paste-and-copy step. Because all processing happens locally with JavaScript, it is fast even on large inputs and completely private — ideal for sensitive or proprietary content.