Plain terms for a site with no accounts. Using OBSCURA OS means you accept what is below.
Last updated: September 4, 2026
OBSCURA OS provides browser-based tools at obscuraos.com. By using the site you agree to these terms. If you do not agree with them, please do not use the site.
There is no registration and no server-side copy of your work. Everything you create lives in your browser's local storage on the device you used. Clearing your browser data, switching browsers, switching devices, or using private browsing will lose it. Keeping backups of anything you care about is your responsibility, and every tool provides an export or download for exactly that purpose.
The Acceptable Use Policy forms part of these terms and is incorporated into them by reference. Using OBSCURA OS, and paying for a pass, means you accept it. Read it before you buy, because breaching it ends your access immediately and without a refund.
In short: these tools exist to protect confidential material that is lawfully yours or lawfully entrusted to you. They may not be used to tamper with evidence, to defeat a duty of disclosure you owe to a court, regulator, auditor or counterparty, to extort anyone, to deliver malicious code, to deal in illegal goods, to handle material whose possession is unlawful, to harass or locate a person against their will, or to misappropriate someone else’s work. You are responsible for knowing which duties apply to you. If a preservation notice, litigation hold or production order covers material, that obligation overrides any use of this software.
You also may not break, share or circumvent the pass or any access control, resell access, or automate use in a way that degrades the site for others.
Everything here runs inside your browser, so we hold no documents and cannot inspect, retrieve, decrypt or produce them for anyone, including ourselves and including law enforcement. That is a design decision, not an oversight, and it does not change. We respond to lawful process to the extent of the information we actually hold, which is limited to the payment records our payment processor keeps.
OBSCURA OS is provided as is, without warranty of any kind, express or implied, including any warranty of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that the site will be uninterrupted, error-free, or that it will meet your requirements.
The privacy and security tools implement well-understood techniques, and each page describes what its technique does and does not defend against. They are not a guarantee of safety in any particular situation. If you are in danger, or a matter is legally significant, treat this software as one part of a plan and not the whole of it, and get advice from someone qualified to give it.
To the maximum extent permitted by law, OBSCURA OS is not liable for any indirect, incidental, special, consequential or punitive damages, or for any loss of data, profits, revenue, or business, arising out of your use of or inability to use the site. Where liability cannot be excluded, it is limited to the amount you paid us in the twelve months before the claim arose.
Nothing here limits liability that cannot lawfully be limited, including for fraud, or for death or personal injury caused by negligence.
The free tier is supported by ads served through Google AdSense. Ads are not shown to visitors with an active Pass or All-Access subscription. What advertisers and Google collect is described in the Privacy Policy.
The site, its design, and its code belong to OBSCURA OS. Whatever you create with the tools belongs entirely to you: we acquire no rights in it, which is straightforward given that we never receive it.
These terms may change; the current version is always on this page with its date. Material changes to paid access will not be applied retroactively to a pass or billing period you have already paid for.
These terms are governed by the laws of the Province of Ontario and the federal laws of Canada that apply there, without regard to conflict-of-laws rules.