The problem
Every designer knows the routine: the artwork goes out on WhatsApp, feedback comes back as three voice notes and the final version gets lost in the chat. And sometimes the preview gets used without the work being paid for.
How it works
- Upload the artwork. PNG, JPG or WEBP. The original stays in private storage.
- Private link. The client opens it with no account, no password and nothing to install.
- Recorded decision. Approve or request changes, with date, time and version on a timeline.
Protecting the preview
The watermark is applied on the server, in PHP, and burned into the pixels. Inspect element will not remove it. The public preview is also downscaled, with right-click and drag blocked.
Privacy
Login is passwordless, through a link sent by email, with an optional passkey or TOTP code. Each project expires at the time chosen, up to 2 hours, and is deleted automatically right after, and the site has terms of use, a privacy policy, a cookie policy, usage rules and a data processing addendum under Brazil’s LGPD.
Business model
DeuOk is free today. Solo and Pro plans, with unlimited projects, custom branding and automatic reminders, are announced as next steps.


