Watermark Image
Add a text or logo watermark to your images online — with position, opacity and rotation control, a live preview and batch support. Free, fast and 100% private in your browser.
or drop JPG, PNG or WEBP images here
Processed in your browser — your images never leave your device.
More tools
Protect your photos and brand your visuals with a custom watermark. oMyImage's Watermark Image tool lets you add text — with your choice of font, color and outline — or overlay your own logo, then position it exactly with live preview, opacity and rotation. Watermark a single image or a whole batch at once. Everything runs in your browser, so your images stay private.
How to watermark an image
- 1
Upload
Select one or many images, or drag and drop them into the workspace.
- 2
Design the watermark
Type text or upload a logo, then set position, size, opacity and rotation with a live preview.
- 3
Apply & download
Click Watermark — one image downloads directly, several download together as a ZIP.
Watermark Image features
Text or logo
Stamp custom text — with font, color and outline — or overlay your own transparent PNG logo.
Full placement control
Pick any of nine positions, set the margin, opacity and rotation, and see it update live before you export.
Private & batch
Apply the same watermark to a whole batch at once, entirely in your browser — images are never uploaded.
Security & privacy
Your images stay private. Watermarking happens entirely in your browser with HTML canvas — nothing is uploaded to a server. No storage, no tracking of your files.
Frequently asked questions
Can I watermark with my own logo?
Yes. Switch to ‘Logo’, upload a PNG (transparent works best), and set its size, position and opacity.
Can I watermark many images at once?
Yes. The same watermark is applied to every image you add, and they download together as a ZIP.
Will the watermark be readable on any image?
Enable the text outline for legibility on busy backgrounds, and adjust opacity and color to taste.
Does it change my original images?
No. Your originals are untouched; the tool produces new watermarked copies in your browser.
Is it free and private?
Yes. No sign-up or watermark from us, and every image is processed locally in your browser.