How to remove a watermark
Upload file
Pick a tool in the tabs above and drop an image, video, PDF or PPTX. It opens instantly and never leaves your device.
Auto process
Semi-transparent marks are recovered with reverse alpha blending; opaque logos are filled from the surrounding background (inpainting).
Download
Preview before/after and save in the same format. Pixels outside the watermark stay identical to the original.
Why Wiper
100% free — always
We're building a friendly app. There are no plans to ever go paid, and there's no watermark on your output.
Unlimited use
No caps on how many files or how often. No sign-up required — use it as much as you like.
100% local — safe
Everything is processed inside your browser, so your files are never sent to a server. That means your data is 100% safe.
FAQ
Are my files uploaded?
No. Everything runs in your browser (Canvas + WebAssembly), so your files never leave your device — private by design. After the page loads it even works offline, and it is completely free with no watermark on the output.
Which formats work?
Images (PNG/JPG/WEBP), video (MP4/MOV), PDF slides and PPTX (beta). Output keeps the same format.
Does it remove SynthID?
No. It edits the visible logo/overlay only. Invisible provenance marks like SynthID are not targeted.