Privacy Policy
Last updated: October 7, 2026
At Karuvii, protecting your privacy is our foundational architectural principle. We engineer client-side utility suites where your calculations, inputs, and identifiers remain strictly within your device.
Client-Side Logic
All core tools process inputs locally in your browser. No sensitive inputs are transmitted to our servers.
Zero Data Storage
We maintain no user databases storing generated barcodes, QR codes, passwords, or UUIDs.
Ad & Cookie Control
Transparent third-party advertising controls with direct opt-out options for Google AdSense.
1. Information We Do Not Collect (Local-First Guarantee)
When utilizing tools engineered by Karuvii (such as Barcode Generators, QR Code Synthesizers, UUID Generators, and Hash Formats), all data computation executes directly inside your browser engine using native Web APIs (such as Window.crypto and HTML5 Canvas).
We do not transmit, log, store, or inspect the values, strings, secrets, or identifiers processed through our tools. Your data remains entirely under your sovereign control.
2. Automatically Collected Technical Information
When accessing our website, our servers and content delivery networks (Vercel) automatically collect standard HTTP request metadata necessary for network reliability, DDoS mitigation, and system diagnostics:
- Browser user agent, version, and language preferences
- Operating system type and screen resolution parameters
- Anonymized IP address for geographical routing and security telemetry
- Referring URL and requested page paths
- Date, timestamp, and response latency
3. Google AdSense & Third-Party Advertising Policy
We use Google AdSense to serve advertisements when you visit our website. To comply with Google AdSense program policies, please review the following disclosures regarding how advertising data is handled:
- Third-Party Cookies: Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to our website or other websites across the Internet.
- Personalized Advertising: Google's use of advertising cookies enables it and its partners to serve ads to users based on their visits to our site and/or other sites on the Internet.
- User Opt-Out: Users may opt out of personalized advertising by visiting Google's Google Ads Settings. Alternatively, users can opt out of third-party vendor cookies for personalized advertising by visiting the Network Advertising Initiative or www.aboutads.info.
4. Analytics & Performance Monitoring
We utilize Google Analytics to understand site traffic patterns, popular technical guides, and core web vitals. Google Analytics collects anonymous usage metrics without associating individual identities. You can opt out of Google Analytics tracking across all websites using the Google Analytics Opt-out Browser Add-on.
5. Cookies and Web Storage
In addition to advertising cookies, our website may utilize standard local storage (localStorage) to store your aesthetic preferences (such as light/dark mode selection). This data never leaves your device and can be cleared at any time via your browser settings.
6. Data Protection Rights (GDPR & CCPA/CPRA)
Under global data protection regulations (including the EU GDPR and California Consumer Privacy Act), you are entitled to key rights regarding your personal information:
- Right to Know: You may request disclosure of any categories of personal information collected.
- Right to Deletion: You may request the deletion of any personal data maintained about you.
- Right to Non-Discrimination: We do not discriminate against any user who exercises their statutory privacy rights.
Because Karuvii operates on a zero-knowledge local execution architecture, we do not maintain accounts or identifiable user records.
7. Contact & Data Officer
If you have questions, regulatory inquiries, or feedback regarding this Privacy Policy, please contact our privacy desk directly: