Overlay — Free, Private Image Watermark & Text Overlay Tool

100% browser-based. No upload, no server, no tracking. Add tiled text watermarks to your photos in seconds. Perfect for copyright protection, ID redaction, and brand stamping. Bookmark this page (Ctrl+D / +D) to use it offline.

1 Choose a local image

2 Type your watermark & adjust style

3 Click the image to download

Why Overlay?

Overlay is a free, browser-only image overlay tool for creators, photographers, sellers, and anyone who needs to stamp a copyright watermark on their photos or redact sensitive fields on identity documents. Every operation runs locally through the HTML5 Canvas API — your images never leave your device.

Frequently Asked Questions

Is my image uploaded to a server?

No. Overlay runs entirely in your browser using the HTML5 Canvas and FileReader APIs. No network requests are made with your image.

Which image formats are supported?

Input: PNG, JPG, GIF. Output: PNG (best for preserving watermark quality).

Is Overlay free?

Yes — completely free, with no watermark, no signup, and no usage limits.

Can I use Overlay offline?

Yes. Save the page to your bookmarks (Ctrl+D / Cmd+D) and open it later without internet.

Is Overlay safe for ID or passport photos?

Yes. Because nothing is uploaded, Overlay is suitable for redacting sensitive fields on identity documents.