Smart Tools Studio

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Free · Private · No account

Make it yours.
Add your mark.

Add a text or logo watermark to multiple images, with control over position, size and opacity.

01 / CHOOSE YOUR IMAGES

Drop your images here.

Or select files from your device.

JPG, PNG, WebP, HEIC and supported AVIF · up to 20 files
25 MB per file · 100 MB total · 24 megapixels per image

No images selected.

    02 / OUTPUT SETTINGS

    Text size is relative to the shorter side. Logo width is relative to image width. Long text or large logos are reduced to fit.

    JPG replaces transparent areas with white. Animated images export a single frame. Original metadata is not copied; colors may change when converting wide-gamut images.

    Select your images to get started.

    Check before you download.

    Choose your watermark, process the images and inspect the result previews. Adjust the settings and run again if needed. Your original files remain unchanged.

    All processing takes place in your browser. No account or upload to a server is required.