Hide an invisible signature in your images that survives resizing and re-uploads, shield it from AI training, and let anyone see the artist behind it.
Free, no account needed.
A visible logo spoils the art for everyone and tells anyone who wants to steal it exactly what to remove: AI tools erase one in seconds. An invisible watermark gives nothing away. Someone reposting or reselling your work has no reason to suspect it's marked, and even if they do, there's nothing to crop or paint over: the signature is spread across the whole image, and without specialised tools they can't even find it. Your art stays clean, and the proof travels with every copy.
The signature is spread through the image as tiny colour and brightness changes, imperceptible to the naked eye. You get the same format back, with your metadata and colour profile kept. If you still notice a change on a particular image, try a different watermark algorithm or strength (available on Creator and Studio).
No. Your image is uploaded over an encrypted connection, processed on our server and deleted as soon as the result is sent back to you. We keep only your signature, the image dimensions and a fingerprint of the output file, so a check can tell the exact original from a copy.
It's built for what happens to art online: downscaling, JPEG recompression and platform re-encoding. Heavy cropping, or deliberate removal with specialised tools, can destroy it. Treat it as evidence of authorship, not a lock.
Right now: DeviantArt, pixiv, Bluesky, X, Flickr, Tumblr, Website, Behance and Mastodon. Coming soon: Instagram, ArtStation, YouTube, Threads, LinkedIn, Pinterest, Pixelfed, Patreon, Etsy, Dribbble and Reddit. Your signature links to your verified profile, so buyers can see exactly who made the work.
It survives resizing, recompression, format changes, filters and screenshots, so a thief can't simply remove it: getting rid of it takes heavy cropping or editing that damages the image, which is the point. Like any watermark, specialised removal tools can strip it too, so keep your original file: it's your strongest proof.
Yes, for future copies: protect the original file and re-upload it. Copies people saved before stay unmarked.
It gives your work the strongest protection available today: a machine-readable reservation that AI developers are legally required to honor under the EU copyright directive and AI Act, embedded in the file and anchored to the invisible watermark, plus a dated record that you opted out. Determined bad actors may still try to ignore the rules, but you'll have the evidence on your side.
A machine-readable text-and-data-mining reservation in the image metadata (the IPTC "Data Mining" field, set to prohibited for AI/ML training), which is the signal EU law requires AI companies to honor. Because many sites strip metadata, your choice is also recorded against the invisible watermark, so anyone who checks the image still sees that AI training is not permitted.
Everyone gets our recommended setting, tuned to stay invisible on smooth gradients while surviving resizing and recompression. On Creator and Studio you can choose the algorithm and strength yourself: turn it down for flat, delicate artwork, or pick another algorithm. The default, Tiled, already tolerates crops to a corner or one side; Aggressive resists heavier attacks but can show in smooth gradients. A stronger mark survives more; a subtler one is harder to see but easier to lose.
Yes. Paste a link to a public post on DeviantArt, Bluesky, Flickr, Tumblr or pixiv into the verify page. We read the post's image, show the signature, and compare the account that posted it with the verified account that signed it. Every check gets a permanent record you can use as evidence, for example in a takedown notice, even after the post is deleted. For other sites, download the image and drop it in instead.
After you protect an image, any free or paid account gets a short "Secured by Invisible Watermark" line to paste under your post, formatted for Instagram, X, Bluesky, DeviantArt, your website and more. It tells anyone who sees the post that the artwork is signed and can be verified, and links back here.
Anyone who checks the image on our verify page. That's the point: buyers, clients and platforms can confirm who made it. Other watermark readers only see encrypted data.
Yes, on the Studio plan: watermark and verify images from your own scripts or shop. See the API docs.
Images you already protected stay verifiable. Cancelling only turns off paid features for new images.