Image Watermark
Add a text watermark to JPG, PNG and other images online for free. Adjust opacity and position, then download the watermarked image in your browser.
Add a watermark to an image
ℹ️ About Image Watermark
Protect previews, social posts and graphics by adding a visible text watermark. ToolBoxly renders the watermark on a browser canvas, so the source image does not need to be uploaded to a processing server.
🛠️ How to Use Image Watermark
Upload an image, enter your watermark text, adjust opacity and choose a position. Preview the result and download the finished PNG.
📥 Input → ⚙️ Process → 📤 Result
Input
Your text, image, document or PDF and the options you choose.
Process
JavaScript and browser APIs process the content locally on your device.
Result
Download or save the finished result directly from your browser.
❓ Frequently Asked Questions
Is Image Watermark free to use?
Yes. ToolBoxly provides this tool free to use without a required account or paid conversion step.
Are my files uploaded to a server?
For this browser-based tool, the selected file is processed in your browser. ToolBoxly does not require a file-processing upload to its server.
Does it work on mobile?
Yes. The interface is responsive and works in modern browsers, although very large files can be limited by device memory.