Free image watermark tools

Choose a job and start with an image. Every tool runs locally in your browser: there is no account, upload queue, or server copy of your file.

01Popular

Watermark an image

Add text, a logo, or a tiled pattern and export one image.

Open tool →02Batch

Batch watermark

Apply one recipe to several images and download a ZIP.

Open tool →03Preset

Confidential watermark

Cover a document image with CONFIDENTIAL, DRAFT, or your own label.

Open tool →04Trace

Embed an invisible trace

Write an authenticated short locator into the image pixels.

Open tool →05Detect

Check a trace watermark

Upload a suspect image and recover its Image Marker locator.

Open tool →06Developer

Recipe builder

Edit, validate, preview, and export reusable Recipe JSON.

Open tool →07Distribution

Recipient trace package

Give each recipient a random locator and keep the mapping locally.

Open tool →08Experiment

Trace robustness lab

Check recovery after JPEG recompression, resizing, and a limited crop.

Open tool →09C2PA

Content Credentials inspector

Read an existing C2PA manifest locally without signing the file.

Open tool →

Built from the same SDK you can ship

These are focused interfaces around React Native Image Marker’s Web renderer. When you need the same workflow in an app, open the SDK playground to inspect every option and copy integration code. Invisible traces are for distribution investigation—not DRM, ownership proof, or a promise that an image was never edited.