Choose an image, enter your watermark text, and adjust its position, size, and opacity below. Everything runs 100% locally in your browser — nothing is uploaded to our servers.
Your image is watermarked locally in your browser and is not uploaded to our server.
Supports JPG, PNG and WebP. Max 25 MB, 8000px per side.
Watermark Settings
Easily Watermark Image Online with Browser-Based Privacy
Protecting your photography, personal documents, and brand assets is essential when sharing visuals across the internet. Our utility allows you to watermark image online with full privacy control. Unlike standard web converters, your photos are processed locally on your client machine using HTML5 Canvas technology, guaranteeing that confidential data stays strictly on your device.
How to Watermark Image Online in 3 Steps
- 1. Upload Photo: Click the upload area to select any PNG, JPG, or WebP file from your computer or smartphone.
- 2. Customize Watermark Text: Enter your text, modify font dimensions, set transparency (opacity), and align text across corners or center.
- 3. Download Result: Export your watermarked photo instantly without loss of image resolution.
This tool adds text — not an image or logo overlay, in this first version — onto your photo at the position, size, color and opacity you choose, using the browser’s own canvas text rendering. The watermark is drawn as pixels directly onto the image, the same as any image editor’s text tool would.
FAQ
Can I watermark image online with a PNG logo?
Currently, this version supports custom text overlays. Image and vector logo uploads will be enabled in an upcoming release.
Is my photo uploaded to any external server?
No. Processing happens entirely on your browser canvas. Your images are never transmitted or stored on any server.